What do you mean by “the proper size”? MATLAB figures are like vector graphics, so you can basically choose the size you want on your plot. You can set the size of the paper and the position of the figure with the function set. Example: plot(epx(1:5)); set(gcf, ‘PaperPosition’, [0 0 5 5]); %Position plot at … Read more
Use FINDALL: allAxesInFigure = findall(figureHandle,’type’,’axes’); If you want to get all axes handles anywhere in Matlab, you could do the following: allAxes = findall(0,’type’,’axes’); EDIT To answer the second part of your question: You can test for whether a list of handles are axes by getting the handles type property: isAxes = strcmp(‘axes’,get(listOfHandles,’type’)); isAxes will … Read more
Assuming that I is your input image and F is its Fourier Transform (i.e. F = fft2(I)) You can use this code: F = fftshift(F); % Center FFT F = abs(F); % Get the magnitude F = log(F+1); % Use log, for perceptual scaling, and +1 since log(0) is undefined F = mat2gray(F); % Use … Read more
Building off of @gnovice’s answer, you can actually create filled plots with shading only in the area between the two curves. Just use fill in conjunction with fliplr. Example: x=0:0.01:2*pi; %#initialize x array y1=sin(x); %#create first curve y2=sin(x)+.5; %#create second curve X=[x,fliplr(x)]; %#create continuous x value array for plotting Y=[y1,fliplr(y2)]; %#create y values for out … Read more
Kinda finished I guess.. code can be found here at github. Documentation is included in the file. The yellow/magenta color (for positive/negative correlation) is configurable, as well as the fontsize of the labels and the angles at which the labels are plotted, so you can get fancy if you want and not distribute them evenly … Read more
If you are looking for Uniformly distributed pseudorandom integers use: randi([13, 20])
There are four ways how Matlab code gets sped up: JIT: compiling at runtime helps with loops but seems to speed up (or at least interact with) other parts of the code as well, according to my anecdotal observations. Implementing functions in C/C++: There’s a bunch of Matlab/Octave functions that are implemented in Matlab/Octave. At … Read more
Trying to do everything via the command line without saving functions in m-files may be a complicated and messy endeavor, but here’s one way I came up with… First, make your anonymous functions and put their handles in a cell array: fcn1 = @() …; fcn2 = @() …; fcn3 = @() …; fcnArray = … Read more
EDIT: gnovice’s suggestion is even simpler than mine: [~,indx]=ismember(X,M,’rows’) indx = 3 FIRST SOLUTION: You can easily do it using find and ismember. Here’s an example: M=magic(4); %#your matrix M = 16 2 3 13 5 11 10 8 9 7 6 12 4 14 15 1 X=[9 7 6 12]; %#your row vector find(ismember(M,X),1) … Read more
Starting from R2010b, MATLAB supports enumerations. Example from the documentation: classdef Colors properties R = 0; G = 0; B = 0; end methods function c = Colors(r, g, b) c.R = r; c.G = g; c.B = b; end end enumeration Red (1, 0, 0) Green (0, 1, 0) Blue (0, 0, 1) end … Read more