Drawnow on Matlab: It store the figure or store the variable? If you have a chart and you just want to find out the values of arbitrary points on the chart you can use the ginput function or by far the simplest solution is to just use the interactive data cursor built into the figure window. Search Answers Clear Filters. Making statements based on opinion; back them up with references or personal experience. The question is not clear. Based on Would salt mines, lakes or flats be reasonably found in high, snowy elevations? Matplotlib generates the minimum and maximum values of variables to be presented along the x, y (and z-axis in the case of a 3D plot) axes of a plot automatically. If you choose to interpolate tou can construct a new set of points, and interpolate over that set. clc; clear all; Fs = 150; % Sampling frequency. such a simple issue, but I am a Matlab novice. So basically what this means is that since this is a bell shaped curve, there are 2 instances where y = .05. Other MathWorks country The number of values can be 3, 5, 10, 50 or any N integer. Skip to content. Unable to complete the action because of changes made to the page. Following is described of my question. How to get the 3rd column in an array by using 1st and 2nd column values as index in Matlab; Get list of property names and values for a MATLAB plot; Confusion in figuring out the relation between actual frequency values and FFT plot indexes in MATLAB; Retrieving X and Y values from Matlab Plot; How do I make the colorbar of my image plot in . Where does the idea of selling dragon parts come from? Is there any way I can do this, or is this impossible? Accelerating the pace of engineering and science. MATLAB stores rational numbers as doubles by default, which is a measure of the number of decimal places that are stored in each variable and thus of how accurate the values are. . To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Accelerating the pace of engineering and science. Hi, how can I extract data andd save as mat file from a figure which has 3 subplots, like this: let say i have y values and need to find the corresponding location, can we find the unspecified location? MaxVelocity = max (Y) This will imply the peak value of your velocity profile. I'm using the ode45 (x,y) for solve an open channel flow problem (plot the surface profiles). how i can write these at the command window ? To get the number of values above threshold = 0.05 you can type above_thresh_count = length (y (y>=threshold)); If the implied time step is Ts, then We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Zooming a portion of figure in a figure-Matlab. How to changes X Y coordinate System and get value point? Automatic xlim () selection: In this method, we specify the limit for the current axis or chart by using an automatic way. I want to find x value given y value, y value is [0.2 0.4 0.7 0.9 1.0] %Finding X value with known Y value on plot clc; clear all; close all; x= 0:0.01:5; y= [0.2 0.4 0.7 0.9 1.0] [X, Y] = me. xvalue = interp1 (y_bluesignal,x_bluesignal, 50.05) and idx = find (y_bluesignal == 50.05); Xidx = x_bluesignal (idx); may work if there is an entered data point at y=50.05 (use a tolerance as in the above comments if this is a calculated value), the interp method will work regardless Share Improve this answer Follow edited Aug 29, 2018 at 16:01 That means your semilogx plot is made up of 519 data series with 756 data pairs in each one. Other MathWorks country MATLAB plots every column as a seperate curve. I have found the minimun value among them (-0.0168), and now, I would like to getting back from that value (the minimum), and to call back the corresponding WZ and J values associated Theme Copy J = [2.5 27 56]; I'm sorry, I tought that the code was self explanatory. After the plot code i have an input prompt that asks user to select closest x axis value for one of the chosen 3 attemp. Did the apostolic or early church fathers acknowledge Papal infallibility? kedarps 851 Reference: stackoverflow.com POPULA POST Furthermore, you probably want the wrong thing. Thanks for contributing an answer to Stack Overflow! Connecting three parallel LED strips to the same power supply. Sign in to answer this question. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Choose a web site to get translated content where available and see local events and did anything serious ever run on the speccy? MathWorks is the leading developer of mathematical computing software for engineers and scientists. Based on C is one point of x'ay' coordinate. what if you want to extract data of two lines ? Is this possible? Introduction to Matlab Plot Multiple Lines. I need to plot the water level for each specific year on y axis and ice conentration average on x axis. Like in sample pictures. So far you just know the max value. Other MathWorks country Respected Image Analyst gave the best answer; I am just simplifying it with examples. Define x, by specifying the range of values for the variable x, for which the function is to be plotted. Connect and share knowledge within a single location that is structured and easy to search. Unable to complete the action because of changes made to the page. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. I first plot data using the scatter function, and then set the x-axis and y-axis limits. In order to find the maximum value, you need to employ some MATLAB functions (max and find). PP may then, evaluated via PPVAL. If you plot x versus y, the values are known and therefore the problem has not relation to the plotting. https://in.mathworks.com/matlabcentral/answers/2951-extracting-data-series-from-fig-file#comment_2357085, You may receive emails, depending on your. Cooking roast potatoes with a slow cooked roast. The peak goes from 0 to .25, and what I need is the duration of this peak with a threshold of .05. i need the x and y values of this data. % set it equal to y_i. and what if i want to take range of values form Point A to B ? MathWorks is the leading developer of mathematical computing software for engineers and scientists. Appealing a verdict due to the lawyers being incompetent and or failing to follow instructions? If you did that unwise thing, then it's possible to extract your data from the graph, which has, in effect "stored" it. How I can get specific values from Matlab Figure. Find the treasures in MATLAB Central and discover how the community can help you! I want to get values of A, B, C. in form of e.g A=(430,0.56). x-axis data is 1-9 because you did not provide any data for MATLAB to plot with. Let us plot the simple function y = x for the . The script finds the values range from 1st of . This is how our input and output will look like in MATLAB command window: Input: x = linspace (0, 3*pi, 50); y = sin (x); plot (x,y) hold on y1 = cos (x); plot (x, y1) hold off title ('Trigonometric waves', 'Sine & Cos wave') Output: As we can see in the Output, we have obtained a plot of a sine and cos wave with the required title and a sub-title. MATLAB: get min x value of struct of vectors matrix get min values of a matrix before max values occurred OpenCV can not get the right max and min values of Mat matlab how to get min value and its index in a matrix python matplotlib specgram () max plot value appears incorrect Replace -inf by min and +inf by max value in matlab array x_low=-100; %the lowest value of x that the for loop could possibly output. Choose a web site to get translated content where available and see local events and There are certain steps that you need to follow for Matlab function plot, and these are: Define the variable x, by highlighting the range of the values for x variable, for which the functions can be plotted. Enter the formula in terms of x inside the for loop and. Haupt-Navigation ein-/ausblenden . Find the treasures in MATLAB Central and discover how the community can help you! You already have x, and y since you plotted it, so there's no need to extract. If you want to get the values of unknown points from the figure and have to use in code then this could be helpful. Why is it so much harder to run on a treadmill when not holding the handlebars? For example, you might want to look at interp1: Theme Copy x = 1:5; y = randn (1,5); plot (x,y,'-o') xhigh = linspace (1,5,100); yhigh = interp1 (x,y,xhigh,'spline'); hold on Define the function, y = f (x). Note that MATLAB represents irrational numbers such as pi with rational approximations, except when using the symbolic math toolbox. Based on Theme Copy delete 2.fig; savefig ('2.fig'); open ('2.fig'); h = gcf; %current figure handle axesObjs = get (h, 'Children'); %axes handles dataObjs = get (axesObjs, 'Children'); %handles t xdata = get (dataObjs, 'XData'); Learn more about collect, symbolic, subs MATLAB, Symbolic Math ToolboxStep-by-step explanation. >> x=1:1:100; >> y=5*x+10; >> yDesired = interp1(x,y, 10), =====================================================================================, >> y=5*x.^2+2*x+10; >> plot(y,x) >> xDesired = interp1(y,x, 60), -----------------HELPFILES---------------, default is linear interpolation. Is it cheating if the proctor gives a student the answer key by mistake and the student doesn't report it? Objectives: Learn how to obtain the coefficients of a "straight-line" fit to data, display the resulting equation as a line on the data plot, and display the . Great explanation. Connect and share knowledge within a single location that is structured and easy to search. Asking for help, clarification, or responding to other answers. As an example on figure i want to find the time of the 68.5 m/s ?? I don't have the x values, and .05 isn't an actual data point in the y vector. When would I give a checkpoint to my D&D party that they can return to if they die? You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. matlab ,MATLAB GUI_cherry- matlab ; please why we wrote this,,,,,,,,,,,,,,,,, LineH = get(gca, 'Children'); x = get(LineH, 'XData'); y = get(LineH, 'YData'); , for example by calling the clear('x') command. So I have a set of y data in MATLAB, and the plot comes out as a bell shaped curve. Not the answer you're looking for? MATLAB will plot each column as its own series. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. To plot multiple sets of coordinates on the same set of axes, specify at least one of X or Y as a matrix. rev2022.12.9.43105. Copy. Find centralized, trusted content and collaborate around the technologies you use most. Check out the. Vai al contenuto. You can leave default variable name ans. sites are not optimized for visits from your location. Getting an x values from a plot in MATLAB. Did neanderthals need vitamin C from the diet? Note: On every execution of the code input values can be different. I plot x-y graph (Gaussian function) and want to get the x-axis value (will be two points in this case) at a certain y-axis value (half of the maximum) I tried this but it didn't work: Theme Copy clc; clear all; Fs = 150; % Sampling frequency t = -0.5:1/Fs:0.5; % Time vector of 1 second x = 1/ (sqrt (2*pi*0.01))* (exp (-t.^2/ (2*0.01))); figure; plot (X,Y) creates a 2-D line plot of the data in Y versus the corresponding values in X. If there isn't a data set, it would be nice to get the value of how the plot line is drawn for the points. (interpolation etc..) How can I do that? thank u alot ,,, i found ur answer very useful,,,,,,, i only wanted to explain my question. 1. fplot (f) This will plot the graph defined by the function y = f (x). Theme. A,B,C are not the part of Plot. It is working, I've already do that but I need the flow depth numerically (y) at the end of my channel (x=xmax). rev2022.12.9.43105. The rubber protection cover does not pass through the hole in the rim. Step 1: to get the total amount you would pay for 4 years add the principal amount &6800 and the APR 4.2% = 285.6x 4 years = $1142.4 interest for 4 years. To comment a single or two lines of code, we can use the % character . The values in between are the velocities of each point. Explain why my code does not do what you want. or in opposite, if C is one point of xy coordinate, how to get position of C in x'y' coordinate? I guess the most simple way is to zoom in and see the value, but there are about 1 thousand data to work with. To get the number of values above threshold = 0.05 you can type. i have 30,000 rand value that i want to separate 400 to 400.then i wanna plot them but the x axis should start at 0 not 400 or . But i cannot seem to do that when the dialog box prompt comes up. PPVAL(PP,Xq) is the same as, You may receive emails, depending on your. Based on this matrix I want to create a 3D plot, where one axis is my x-direction, the second axis is my y-direction and the third axis is the velocity changes. How can I extract data in a vector from semilogx figure? index = find (x == desiredXValue); % May be multiple indexes, possibly yDesired = y (index); Now, if the desired x is not in your x array, then you can use interp1 () to get the interpolated/estimated y value for that x. But if you want to find corresponding time value for max velocity, first you need to find index of it. Choose a web site to get translated content where available and see local events and 1. I have two excel files, the script extracts the data from the 2 files. . I have the axis limits and style set to 'equal', so when the limits are changed, the size of the plotting area is automatically changed to maintain the correct aspect ratio. https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_503858, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#answer_96318, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169060, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169068, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169131, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_482718, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_1448607, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_1458001, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_1964845, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#answer_96292, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169059, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169132, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169133, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169136, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169268, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#answer_96291, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169057, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#answer_302068. So, How to convert C position to xy coordinate?? thank u very muchi am so happy to know such helpful men like u , Jan Simon and Ilham Hardy. I plot x-y graph (Gaussian function) and want to get the x-axis value (will be two points in this case) at a certain y-axis value (half of the maximum) I tried this but it didn't work: Theme. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, What are those points (A, B, C) etc? This variable will contain X and Y coordinates of all selected points. Please help me Guillaume on 29 Aug 2016 @Pooja Patel Theme Copy value = find (Y == Y) Man, I just spent so long trying to figure this out. Plot Single Data Series at Specified x values Plot 50 data values of cosine evaluated between 0 and 2 and specify the set of x values for the stem plot. Are they actually plotted as a separate series? Lets normalise our X values so the data ranges between -1 and 0. Is it cheating if the proctor gives a student the answer key by mistake and the student doesn't report it? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Do you want the y values exactly at the position of an x value, or are you interested in x values between two given x values also? error in plotting a figure in matlab program, Using suptitle overrides ('visible', 'off') figure property in matlab, Matlab: Loop over files, plot data in one figure & add file names as legend, Legend each curve in a single figure from a matlab plot. if you plot, in section tools,basic fitting you can evaluate, I agree with Jan - it's ambiguous. A,B,C are not the part of Plot. Let's understand this function with the help of an example: fplot (@ (x) x^2) Here we have taken square function as the one which we need to plot. Extract X,Y data from scatter plot. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. MATLAB Answers. Unable to complete the action because of changes made to the page. Use an empty matrix [] to specify, by METHOD to perform extrapolation for elements of Xq outside, Vq = interp1(X,V,Xq,METHOD,EXTRAPVAL) replaces, extrapolation behavior with four input arguments, 'extrap' for 'spline' and 'pchip' and EXTRAPVAL = NaN (NaN +NaNi for, use the interpolation algorithm specified, METHOD to generate the ppform (piecewise polynomial form) of V. The, may be any of the above METHOD except for 'v5cubic'. How does legislative oversight work in Switzerland when there is technically no "opposition" in parliament? https://www.mathworks.com/matlabcentral/answers/82050-finding-x-value-corresponds-to-a-particular-y-value, https://www.mathworks.com/matlabcentral/answers/82050-finding-x-value-corresponds-to-a-particular-y-value#comment_387639, https://www.mathworks.com/matlabcentral/answers/82050-finding-x-value-corresponds-to-a-particular-y-value#comment_387642, https://www.mathworks.com/matlabcentral/answers/82050-finding-x-value-corresponds-to-a-particular-y-value#answer_91764, https://www.mathworks.com/matlabcentral/answers/82050-finding-x-value-corresponds-to-a-particular-y-value#comment_801434. How can I get it? % Get the first index where 'y' is greater than some threshold thresh = 10; idx = find ( y >= thresh, 1 ); % Find 1st index where y >= thresh % Get the x value at this index xDesired = x ( idx ); Note that xDesired will be empty if there was no y value over the threshold. t = -0.5:1/Fs:0.5; % Time vector of 1 second. Add a new light switch in line with another switch? How can I get the x and y coordinates of this matrix to create a 3D surface? Asking for help, clarification, or responding to other answers. I just Wrote them in Photoshop to make Understand the Question. Plot Multiple Data Series at Specified x values Then select in menu Tools-Brushing-Create new variable. The plot is created over the default interval [-5, 5]. The length of the input values (Graph Values) can also change every time. I want to find x value given y value, y value is [0.2 0.4 0.7 0.9 1.0] %Finding X value with known Y value on plot clc; clear all; close all; x= 0:0.01:5; y= [0.2 0.4 0.7 0.9 1.0] [X, Y] = me. 4 Answers Sorted by: 2 Another option is to use data brush. How is the merkle root verified if the mempools may be different? It will just replace 1-9 with your array. How can I plot a pattern of random points in a specific region? How to say "patience" in latin in the modern sense of "virtue of waiting or being able to wait"? Are defenders behind an arrow slit attackable? I have a matrix , X= [5 6 9 8 4] Y= [8 7 2 1 9] If I plot this and I need to get position of the X value corresponds to Y=1, that means in which row the X value 8 is located? But you did not explained the code. First open the figure, then obtain the x and y coordinates of the line with, To obtain the value yi at the point with abscissa greater or equal then xi you can write, To extract the values between the points with abscissa x1 and x2 you can follow both strategies. answer should be 4th position. Something can be done or not a fit? Add a new light switch in line with another switch? x = 1:100; % Initialise plot handle h = plot (nan,nan); for iter = 1:1e2 y = rand + rand*x + rand* (x.^2 ); % set appropriate values of handle set (h, {'XData','YData'}, {x, y}); drawnow; end This way, a plot handle is created only once, and its properties are set in the loop. Since you are setting your marker color, you probably noticed that (each series is assigned a different color Are the S&P 500 and Dow Jones Industrial Average securities? clc; clear all; Fs = 150; % Sampling frequency. After the plot code i have an input prompt that asks user to select closest x axis value for one of the chosen 3 attempts. To plot a set of coordinates connected by line segments, specify X and Y as vectors of the same length. To learn more, see our tips on writing great answers. Why is this usage of "I've to work" so awkward? t = -0.5:1/Fs:0.5; % Time vector of 1 second. Doing this will give you equal spacing. Why do American universities have so many gen-eds? However, say that I have plotted a graph with plot (t, sin (2*pi*t)). Running the for loop, ends up in having created a slope matrix, with 3 values inside, which reprenset 3 different slopes. I have a matrix , X=[5 6 9 8 4] Y=[8 7 2 1 9] If I plot this and I need to get position of the X value corresponds to Y=1, that means in which row the X value 8 is located? Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. If the resolution of your data is high, it is likely that it will be a good approximation. ? Define the function, y = f (x) Call the plot command, as plot (x, y) Following example would demonstrate the concept. Copy. Sign in to comment. Effect of coal and natural gas burning on particulate matter pollution, 1980s short story - disease of self absorption. It is possible, however, to define explicit limits by using the following methods: By using xlim () and ylim () By using set_xlim () and set_ylim () By using axis () The first line intersects the set of points that follow x1 with the set of points that precede x2, and the return the indices. Copy. Find the treasures in MATLAB Central and discover how the community can help you! By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. i have 30,000 rand value that i want to separate 400 to 400.then i wanna plot them but the x axis should start at 0 not 400 or 800 or.any help please? offers. Accepted Answer Star Strider on 8 Nov 2014 or flow_depth = y (end,:); Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. How do I find this if the size of matrix is very big.. Matlab has the ginput for getting the (x,y) value of where you have clicked on the graph. Issue Plotting 2 different Values. I need to know what the x values are at these points and get the difference between the two, thus giving me the duration. Sudo update-grub does not work (single boot Ubuntu 22.04). Find the treasures in MATLAB Central and discover how the community can help you . offers. Why does the distance from light to subject affect exposure (inverse square law) while from subject to lens does not? Ready to optimize your JavaScript with Rust? How many transistors at minimum do you need to build a general-purpose computer? How could my characters be tricked into thinking they are on Mars? If you don't have the abscissae and you are creating the plot by only providing y as input to the plot function, i.e., plot(y), then the y values are plotted against the vector 1:length(y). A,B,C or not the part of Plot. (TA) Is it appropriate to ignore emails from a student asking obvious questions? I have a matrix, where the first row is my x direction and the first column is my y direction. Basically, there are two ways to implement the xlim () function in Matlab as follows. How to plot two histograms together in R? The script works for specific years but not for some because of not same vector size. Otherwise, you could look at the interpolation commands, if you want the whole process automated and repeatedly executed. Just set the value for x_low, % x_high, and y. I want to get some specific values from a Matlab Figure. I just wrote them in Photoshop help clarify the question. Not the answer you're looking for? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Ready to optimize your JavaScript with Rust? Now, I create new XY coordinate with a is original point. More Answers (3) Therefore, I want to give a commend that orders to give the y-value at certain x-value. will give you an under-approximation (in general; unless the data set is artificial) of the duration you are seeking. Please explain this by editing the original questions. Weiter zum Inhalt. Why do American universities have so many gen-eds? But perhaps you have a Figure file and lost the x and y values. I plot x-y graph (Gaussian function) and want to get the x-axis value (will be two points in this case) at a certain y-axis value (half of the maximum) I tried this but it didn't work: Theme. The problem I'm having is I don't know how to get the x values. Appealing a verdict due to the lawyers being incompetent and or failing to follow instructions? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Click brush icon on the figure toolbar and make a selection. add $6800 and $1142.4 = $ 7924.4. sites are not optimized for visits from your location. So, that means you have 6 curves and 9 data points for each curve. Some explanation would improve this answer. sites are not optimized for visits from your location. your location, we recommend that you select: . Isn't that exactly what I just showed you how to do? Learn more about plot, graph, input prompt, prompt MATLAB . I want to be able to have the cursor move on the actual plot, and by clicking it, I get the (x,y) coordinate of my plot (in this case, the time and the value of sine). How do I find this if the size of matrix is very big.. Thanks for contributing an answer to Stack Overflow! Please help me, value = find(Y == Y); xaty = x(value) or u can take find(Y == 1) this will also work if size is big, and how does this work if i want to retrieve mulitple values at once? Reload the page to see its updated state. i have 30,000 rand value that i want to separate 400 to 400.then i wanna plot them but the x axis should start at 0 not 400 or 800 or.any help please? from the axes (graph) at all. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Learn more about scattered data, extract value, plot . Call the command for function plot with the file name plot (x,y). Start Hunting . your location, we recommend that you select: . your location, we recommend that you select: . To plot the graph of a function, you need to take the following steps . Sign in to comment. So in that case, I'd just use the x and y which are already available, and if the x is in the x array that you plotted, you can do this: in your x array, then you can use interp1() to get the interpolated/estimated y value for that x. i am so sorry for complexity the problem is that i plotted a figure of x , y then i want the program automatically uses the y value (any value) when its x value used (it is used in a loop) thanks alot for ur care. How to smoothen the round border of a created buffer to make it look more natural? In the first case consider, that numerical comparisons are bounded by the numerically limited precision: % Linear interpolation [EDITED, not "linspace"]. Why did the Council of Elrond debate hiding or sending the Ring away, if Sauron wins eventually in that scenario? To learn more, see our tips on writing great answers. Save plot to image file instead of displaying it using Matplotlib, Adding a legend to PyPlot in Matplotlib in the simplest manner possible, Making a line plot of a set of values in MATLAB. See that section for details. If you don't have the abscissae and you are creating the plot by only providing y as input to the plot function, i.e., plot (y), then the y values are plotted against the vector 1:length (y). Toggle Sub Navigation. Can a prospective pilot be negated their certification because of too big/small hands? I plot an x , y graph can i ask the programme to tell me the value of y for the value of x i want ? https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_537019, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#answer_305991, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_584148, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_1187993, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_1962535, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_1962595, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_2169550, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_2274400, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#answer_619987, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#answer_1050830. This requires user to zoom in on generated plot. how to create different matrices? Reload the page to see its updated state. Find centralized, trusted content and collaborate around the technologies you use most. Reload the page to see its updated state. Theme Copy yDesired = interp1 (x,y, desiredXValue); 7 Comments on 1 Feb 2022 Sign in to comment. I would really appreciate any help anybody could offer, I've been stuck trying to do this for the past 6 hours. In this method, we need to specify the automatic method that is tight and padded. The output of our example will be as shown below: Navigazione principale in modalit Toggle . Try this code, Its working for me Code is according to Time and Y figure. offers. Accelerating the pace of engineering and science. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. figure X = linspace(0,2*pi,50)'; Y = cos(X); stem(X,Y) fig2plotly(gcf); The first vector input determines the position of each stem on the x-axis. I want to find x value given y value, y value is [0.2 0.4 0.7 0.9 1.0] %Finding X value with known Y value on plot clc; clear all; close all; x= 0:0.01:5; y= [0.2 0.4 0.7 0.9 1.0] [X, Y] = me. How to get x coordinates from a matrix - MATLAB Answers - MATLAB Central How to get x coordinates from a matrix Follow 2 views (last 30 days) Show older comments Jin Chua on 1 Feb 2017 0 Commented: Star Strider on 5 Feb 2017 I have a matrix with pixel values and zeros. answer should be 4th position. Making statements based on opinion; back them up with references or personal experience. Learn more about matrices, plot MATLAB. I have a code that generates an EMG plot of three breathing attempts. Counterexamples to differentiation under integral sign, revisited, Penrose diagram of hypothetical astrophysical white hole. % This code solves for x given a value of y. If you only care about this specific vector y, you could manually adjust the calculation since the plot command already did linear interpolation by default when invoked. In fact I showed you how to do it two different ways. That's all true, but we should probably stop to tell Karim that MATLAB does have a lot of tools for evaluating points on some of those many interesting functions. like what is "xi"? Share Zooming in on generated graph in order to get. I want to get some specific values from a Matlab Figure. . Sudo update-grub does not work (single boot Ubuntu 22.04). Then just run mean (ans (:,2)) to get average of Ys. Is the EU Border Guard Agency able to tell Russian passports issued in Ukraine or Georgia from the legitimate ones? I have added some comments. so if i want, You may receive emails, depending on your. I just wrote them in Photoshop help clarify the question. x_high=100; %the highest value of x that the for loop could possibly output. Passer au contenu. With the first you could write. please find the attachment; in the figure, there are two data values. Like in sample pictures, I want to get values of A, B, C. in form of e.g A= (430,0.56). After that, we need to enable the auto limit selection. . 1 Link If you want to get the values of unknown points from the figure and have to use in code then this could be helpful. The number of values can be 3, 5, 10, 50 or any N integer. 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