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AJ von Alt

Last seen: 7 days ago |  Active since 2014

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Answered
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

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Answered
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

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Answered
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

Answered
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

Answered
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

Answered
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

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Answered
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

Answered
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

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Answered
Is there an efficient method to remove leading underscores from a cell array of strings?
b = regexprep(a,'^_','','emptymatch')

10 years ago | 1

Answered
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

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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

Answered
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

Answered
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...

11 years ago | 0

Answered
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...

11 years ago | 0

Answered
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...

11 years ago | 1

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Answered
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 ...

11 years ago | 4

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Answered
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...

11 years ago | 0

Answered
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...

11 years ago | 0

Answered
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...

11 years ago | 0

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Answered
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...

11 years ago | 1

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Answered
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....

11 years ago | 1

Answered
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...

11 years ago | 0

Answered
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 ] =...

11 years ago | 0

Answered
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...

11 years ago | 1

Answered
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;...

11 years ago | 0

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Answered
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...

11 years ago | 0

Answered
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 ...

11 years ago | 0

Answered
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...

11 years ago | 0

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Answered
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...

11 years ago | 1

Answered
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 ...

11 years ago | 0

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