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Error using vertcat Dimensions of arrays being concatenated are not consistent.
In the RRTSS1 script, "dist" is defined inside an "if" statement without any "else" for "dist" value. So if Reach=0, then ans =...

6年以上 前 | 0

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How to divide data into train/valid/test sets such that one sample from every class is selected?
Set 'Stratify' option to 'True'. cv = cvpartition(data(:,1),'KFold',5,'Stratify',true);

6年以上 前 | 0

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Determine first and second derivatives, without using builtin diff function, using forward differencing with 0 dx error
dfdx = zeros(size(f)); d2fdx2 = zeros(size(f)); dfdx(2:end) = f(2:end)-f(1:end-1); d2fdx2(2:end) = dfdx(2:end) - dfdx(1:e...

6年以上 前 | 0

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How to calculate the optimal thickness
Assuming, optimal thickness yields maximum refraction, m = find(R==max(R)) optimal_thickness = d(m) % ans = % 1.9192e-07...

6年以上 前 | 0

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Problem with the TreeBagger Command
The Training_Output variable has to be a vector of size 6768X1 instead of a matrix.

6年以上 前 | 0

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how i can use confusion_matrix for result of image classification using knn?
yhat = predict(model,x); C = confusionmat(y,yhat)

6年以上 前 | 0

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How do I improve my result of KNN classification using confusion matrix?
yhat = predict(model,x); [C,order] = confusionmat(y,yhat); Use this help file to understand how to use C and order: https://w...

6年以上 前 | 0

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Convolution of two piecewise signals returning zero (exercise 2 in attachment)
t = -10:1/10:10; x = zeros(1,length(t)); h = zeros(1,length(t)); for i=1:numel(t) if t(i)<0 || t(i)>2 x(i) = 0;...

6年以上 前 | 0

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transform column and row data of logical matrix to vector(N X 2)
logical_matrix = [0 0 0 0; 0 1 0 0; 0 0 0 0; 0 0 1 0; 0 1 0 1]; [i,j] = find(logical_matrix); vector_matrix = [...

6年以上 前 | 0

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