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Plotting results of for loop on one graph
Replace your plot(r,z_1) with this: plot(r,z_1,'.'); hold on If you don't turn the "hold" to "on" then the figure is o...

environ 9 ans il y a | 8

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Multi Plot with 8 (eight) plots in figure
You need to divide the plotting space into 5 rows with 2 columns, so your first plot, for example, would read subplot(5,2,[...

environ 9 ans il y a | 1

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removing Non-green background from image
Try this: BW = RGB2(:,:,1); BW = uint8(imfill(BW,'holes')); leaves_only = al1; for a = 1:3 leaves_only(:,:,...

environ 9 ans il y a | 1

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[DISCONTINUED] MATLAB Answers Wish-list #4 (and bug reports)
Maybe this functionality already exists and I'm not aware of it, but why isn't there a notification of some kind on my profile p...

environ 9 ans il y a | 13

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Iterating through array of structures causes "Index exceeds matrix dimension"
It is impossible for j to go larger than numel(D) unless you modify j or D within the loop (which you are doing). I believe what...

environ 9 ans il y a | 0

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How to create vector
You should always include the error message. It tells you (and me) what the problem is. See if this works: vol = zeros(leng...

environ 9 ans il y a | 1

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Plotting the same distribution function in two different ways return two different graphs
In your first plot, you are plotting using the following code: plot([vR(1);vR],[0 FvR],':'); In your second plot, you ar...

environ 9 ans il y a | 0

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Data Set with multiple markers, how do I get the legend to display this?
Why are you including 'fitresult' in your plotting commands? See if this code does what you want: function [fitresult, gof]...

environ 9 ans il y a | 0

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Deleting rows in a matrix
Your code produces the result you expect. You'll need to better specify your problem. You can lose the loop completely, though, ...

environ 9 ans il y a | 0

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How to make a infinite while loop that stops on users command.
It's not the prettiest, but the simplest would be to press control+c, which halts any code that is executing. Also, this same qu...

environ 9 ans il y a | 0

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sort a line of the matrix and change the other lines according the line sorted
Use sortrows. a = a'; % transpose your matrix asorted = sortrows(a,1); % sort by first column (row) asorted = asorted...

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How can find the cartesian coordinates of circle in a image
First, convert the image to binary using im2bw. Then use bwboundaries to return each object boundary. The result of bwboundaries...

environ 9 ans il y a | 0

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How do I create an Array of random binary?
M = zeros(60,96,10); for j = 1:size(M,3) rand_row_idx = randi([1 size(M,1)]); rand_col_idx = randi([1 size(M,...

environ 9 ans il y a | 0

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Can xlswrite be used to prompt the user for the file name?
This code will request user input for the name: str = input('Enter filname:','s') Then you can simply pass the _str_ var...

environ 9 ans il y a | 1

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How do I plot the intersections of two functions???
I don't know if there's a built-in code for finding intersections from function objects, but you could use the <http://www.mathw...

environ 9 ans il y a | 0

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find corner points in image?
Binarize your image then use corners.m.

environ 9 ans il y a | 0

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How to add zeros to 2 x vectors where there are no matches, to get the same length ?
Your question seems ambiguous to me, but based off my interpretation, see if this code gives you the result you're looking for: ...

environ 9 ans il y a | 0

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Why is my RGB image not displaying as expected using imshow?
The problem here is that I was expecting the wrong thing. Matlab is plotting the proper RGB values; ArcMap was automatically app...

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Question

Why is my RGB image not displaying as expected using imshow?
I have a Landsat "natural" image with three color bands (rgb values ranging from 0-256). When I display the image in ArcMap, it ...

environ 9 ans il y a | 2 réponses | 1

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How to break out of a while loop inside a function block ?
The search function is your friend. See <https://ch.mathworks.com/matlabcentral/newsreader/view_thread/315080> for someone with ...

environ 9 ans il y a | 0

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radius of my image?
For the image you provided, you could simply compute the diameter by taking the difference between the max and min y-values of...

environ 9 ans il y a | 0

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How do I eliminate the space between the subplots?My MatLab program is as follows:
You should search around before asking. There are a handful of files at the FEX that can help: http://www.mathworks.com/matlabc...

environ 9 ans il y a | 0

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Defining RGB color in curve fitting
I don't see in the help file for fnplt that you can specify a color (though you must not be getting an error...) You could tr...

environ 9 ans il y a | 0

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How can I automatically distort (transform) a binary image to match a similar one?
Tracy's suggestion below of using PIV softwares gave me an idea which, after a bit of bookkeeping coding seems to work well. ...

environ 9 ans il y a | 1

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How do I find the first instance of consecutive numbers above a threshold in an array?
Here's one of many ways, if I understand correctly your question: thresh = 300; blah = [100 200 300 400 500 600 700 600 ...

environ 9 ans il y a | 0

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How to perform multiple AND operations inside the loop?
Why not just sum(abs(imsubtract(im1,im2))) which will return the number of pixels that are different between im1 and im...

environ 9 ans il y a | 0

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Parfor Loop Indexing, Starting at value other than 1
Why not try it and see? You already wrote the code, just insert something in place of <body> like blah(ii) = rand...

environ 9 ans il y a | 0

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I'm trying to make a contour plot using discrite x,y, and z values and the examples in all the help files assume z is just a function, not the z value associated with my x and t value. The x and y values are scatered,How can I do this? Thanks, Rick
You should search before posting. The first hit of a <http://lmgtfy.com/?q=matlab+surface+x+y+z Google search> suggests tr...

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find the difference of two structure elements
Also this should work except you should use "()" instead of "_" : http://www.mathworks.com/matlabcentral/answers/46760-extractin...

environ 9 ans il y a | 0

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find the difference of two structure elements
Have a look at http://www.mathworks.com/matlabcentral/newsreader/view_thread/243404

environ 9 ans il y a | 0