MATLAB is a high-level language and programming environment developed by MathWorks. It is the foundation for a number of other tools, including Simulink and various toolboxes that extend the core capabilities. This tag relates specifically to the use of toolboxes. For general questions on MATLAB, ...
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How to implement a custom performance function to be used with Matlab's neural network toolbox?
The default performance function is mse, but I want to use a different metric for calculating performance.
I also noticed that trainlm doesn't support custom performance functions.
An additional ...
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1answer
26 views
How to deal with floating point coordinate values in image
I am plotting some geometry on an image. The problem is the coordinates are coming out as floats, so I am not able to plot them. As a work around I am using floor(); to truncate it to nearest Integer. ...
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How to assign to an array of variables an array of values in MuPad
I want to assign a matrix, vector of symbolic elements, a matrix, vector of values... How?
Something like:
matrix([a,b,c,d]) = matrix([1,2,3,4])
Which is incorrect in MuPad... So how? Thanks
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12 views
How to setting cameras parameters from matlab function
I use a AVT Guppy camera for image acquisition, and everything works fine. But now I have to set camera parameters (mainly shutter time) from my function. Is it possible? And which function can I use ...
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1answer
43 views
I have troubles reconstructing decomposed tensor in matlab
We have a tensor in matlab of size 308 x 22 x 29 x 12 x 492020
It is pretty big. We did decomposition on it and it worked fine. Now we are trying to reconstruct it back to get some predictions. When ...
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1answer
31 views
fisheriris data and perceptron
i want to apply the perceptron algorithm for fisheriris data and i was tried this code
function [ ] = Per( )
%PERCEPTON_NN Summary of this function goes here
% Detailed explanation goes here
...
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20 views
fisheriris data [closed]
i want to know how to add fisheriris data "meas , species" in one dataset uisng matlab or array .
how to apply the Perceptron algorithm for the fisherIris data in matlab
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2answers
51 views
Drawing 256 squares/rectangles in MATLAB
I am trying to draw 256 small sized squares using MATLAB rectangle function. If I am drawing abut 10 squares then the following works fine:
for i=1:2:40
rectangle('Position',[5,3+i,0.3,0.3],...
...
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1answer
27 views
Blank TIF image when using MATLAB TIFF class
*strong text*I am trying to save a multi-page TIF file using the MATLAB TIFF class in 2012a by following the example in the documentation. My usage differs in that I am writing a 32-bit grayscale ...
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1answer
28 views
Can Matlab Pass Data In String To Visual Studio 2010 in real time?
I am doing some Matlab coding which able pass data to visual Basic 2010 in real time. Anyone of u has any idea about it? And i quite rush for it. Thank You :D
p/s:i apologize for my bad English ...
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1answer
49 views
rhythm of speech
Hi folks I am very new to Matlab and I want to know that is there any way or function in Matlab to calculate approximately the rhythm of speech? How can it be done? If not, what should I use to do ...
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1answer
38 views
How to create a color map from a [0,1] matrix setting color range in [0,1] interval in Matlab
Consider a matrix whose values are all in the real interval [0,1]. I am trying to get a color map from this matrix in Matlab.
My problem concerns using both the image function or the HeatMap object ...
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1answer
83 views
Dimension reduction methods for images
I am trying to reduce the dimensions on an a set of images using Matlab Toolbox for Dimensionality Reduction. Problem is: I know very little about dimension reduction. So am trying each one by trial ...
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33 views
How to call a Matlab function or script from a MuPad notebook
In general
Consider having a MuPad notebook. Consider also having some Matlab functions that you want to use in your MuPad notebook. The functions, or even some scripts files (so just .m files), are ...
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1answer
64 views
How to divide an image into 8 regions using Matlab
I have 256x256 image, Is there any easy way to divide it into 8 regions(32x32) and get a specific region? Ex.: region 4,6
