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output variable size matrix, while its specified type is something else.

MATLAB Function Block is having difficulty inferring the size of x. Replacing x=value(ind); with x=value(ind(1)...

10 years ago | 2

| accepted

Problem with findpeaks - error message of 'undefined variable "coder"'

This looks like it might be a path issue. Try: restore defaultpath savepath rehash toolboxcache and restart MATLAB...

10 years ago | 1

| accepted

Invalid MEX-file error in R2014a(32-bit)

Mex files can be version dependent. Did you generate the MEX file using MATLAB R2014a?

10 years ago | 0

See Generated code from Realtime workshop for Arduino

Generated C code can be reviewed by enabling the Code Generation report. In the Configuration Parameters dialog box select R...

10 years ago | 0

global variable inside a function

There is no need to use a global. You can pass t in as an argument to your ode function. <http://www.mathworks.com/help/matlab/r...

10 years ago | 2

Why does not overloading using assignin work?

Patrik, The MATLAB Answers article <http://www.mathworks.com/matlabcentral/answers/102537-why-do-i-receive-an-error-when-i-...

10 years ago | 1

| accepted

Is there a way, when reading a file to insert text between a deliminator.

Use strsplit with "Collapse Delimiters" disabled. inputstr = '[1,1,,1;1,1,,1;1,1,,1]'; C = strsplit( inputstr , ',' , 'C...

10 years ago | 1

convert character array to cell

You can use strsplit to split the string into cells. For your output, you can use the line feed character char(10) as the delimi...

10 years ago | 0

| accepted

Is there an efficient method to remove leading underscores from a cell array of strings?

b = regexprep(a,'^_','','emptymatch')

10 years ago | 1

Working with Cell Arrays

You can use cellfun with an anonymous function to get rid of the for loop. channel1 = { imread('cameraman.tif'),... ...

10 years ago | 0

how to generate a matrix from another matrix

You can use <http://www.mathworks.com/help/matlab/ref/rdivide.html rdivide> to do this. "rdivide" will expand the scalar "0.001"...

10 years ago | 0

Scatter plot does not display point 0,0 when double precision

This looks like an issue with the Painters renderer. Switching to OpenGL resolves the issue on my end. x = [0 0; 12 0; 6 6]...

10 years ago | 1

Generate 251 experiment noise data (mnoise) which follow a normal distribution with mean 0 and standard deviation of 0.02. (Use command “randn”).

The function <http://www.mathworks.com/help/releases/R2013b/matlab/ref/randn.html |randn|> assumes a standard normal distributio...

10 years ago | 0

what should you do to add additional coins in this image?

What are the constraints on the problem? Do you want to detect coins, copy them, and insert them into the image or do you just w...

10 years ago | 0

need function to compute iterations of element in matrix

One approach is to create a logical matrix for the input by comparing it to the target value. You can then sum a row, column, or...

10 years ago | 1

| accepted

whats the meaning of these question? " Subscripted assignment dimension mismatch."

This error occurs when the dimensions of the array resulting from the assignment expression do not match the explicitly defined ...

10 years ago | 4

| accepted

Plotting 3 variables of a single function

<http://www.mathworks.com/matlabcentral/fileexchange/764-sliceomatic Sliceomatic> on Matlab file exchange is a useful tool for t...

10 years ago | 0

Why I can draw lines on the Axes but can't draw lines anymore after imshow a picture on Axes?

|OutputToComputer_Callback| may be called before |continue_pencil|. You should initialize |handles.coord| in your opening functi...

10 years ago | 0

How do I name a file from part of the file name read in?

The function <http://www.mathworks.com/help/matlab/ref/strsplit.html |strsplit|> will split a string into parts based on a delim...

10 years ago | 0

| accepted

user defined equation fit to a dat a set

The <http://www.mathworks.com/help/releases/R2013b/curvefit/fit.html fit function> can use custom non-linear models. <http://www...

10 years ago | 1

| accepted

will "if exist('a','var') && a == 2" always work, without throwing an exception?

All of these approaches will throw an error if |a| is not a numeric array, logical array, character array, or categorical array....

10 years ago | 1

Matlab executable crash/error - missing dll??: IESHIMS.ddl and MCLMCRRT7_15.dll

Has MATLAB Compiler Runtime 7.15 been installed on the deployment machines? The MCR version must match the compiler version used...

10 years ago | 0

How to save multiple varibles from the function into the workspace?

You can return multiple variables from a function using the function definition syntax: function [ out1 , out2 , out3 ] =...

10 years ago | 0

How to Crop an Image

The function |imcrop| returns a matrix. You are trying to store this matrix as a single element of an array. This is not possibl...

10 years ago | 1

plot tools：add data color

If you want to make the line black at the time of plotting, add the argument |'k'| to the plot command. Example: figure;...

10 years ago | 0

| accepted

plotting the number of actions for ex i=i+1 ( action), pgd=n/i ( action), pgd=n(action)

You can create a variable to count the number of actions taken and increment it every time an action is take. Have your function...

10 years ago | 0

Quiver always come on top !!!!

You can fiddle with the z values of the patch to change whether it appears on top. Z values larger than 1 will usually make the ...

10 years ago | 0

Pointer Setting for identifying time of corresponding data

Let's see if I have your situation right. Your measurements are stored in a 9450x10 matrix where each row is a row correspond...

10 years ago | 0

| accepted

How to store the co-ordinates of a pixel in an array?

Assuming that by the first 10 pixels, you mean the first 10 in column major order, <http://www.mathworks.com/help/releases/R2013...

10 years ago | 1

Designing a lowpass filter with lesser filter coefficients with the required parameters

This <http://www.mathworks.com/help/dsp/examples/designing-low-pass-fir-filters.html example article> gives a great run down of ...

10 years ago | 0