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Question
Issue with imdistline() function in MATLAB?
I am trying to measure the distance two points on an image and then use that distance as an input for some other function. Here ...
9 years ago | 2 answers | 0
2
answersHow do I generate a confusion matrix for multi-class example?
You just need to have 2 parameters, the predicted labels and the actual labels. After that just use C = confusionmat(predicted ...
10 years ago | 1
Question
Error: Each initial covariance matrix must be symmetric and positive semidefinite.?
Hi, I am trying to fix, a guassian mixture model to the data using the command. obj = gmdistribution.fit(data,maxk,'...
10 years ago | 0 answers | 0
0
answersQuestion
ERROR: Initial covariance is required, even though I am giving it the covariance in gmdistribution.fit.
I am trying to fit a Gaussian mixture model for data, I am calculated inital means, covariance and Pcomponents , and created a s...
10 years ago | 0 answers | 1
0
answersQuestion
Kmeans returns negative values in cluster centroids?
I am performing kmeans on a dataset , with 500 points and 1000 dimensions. The dataset is a histogram, where each dimension is a...
10 years ago | 0 answers | 0
0
answersQuestion
Modifying dlnode.m to allow multiple nodes having the same parent?
Hi, I am trying to build a tree in matlab and for that I am using the <http://www.mathworks.com/help/matlab/matlab_oop/example-...
10 years ago | 0 answers | 0
0
answersQuestion
Importing a pointer with all the data that it points to from C++ to Matlab via mex?
Hi, I am working on a classification algorithm , for which I am training a decision tree in C++, via the mexFunction. I am stor...
10 years ago | 0 answers | 0
0
answersQuestion
Returning a vector from C++ to matalb through mex?
HI, I am trying to return a vector back to matlab using the mex function. I declare a return pointer as, double *retPtr = NUL...
10 years ago | 0 answers | 1