Matlab下标的分配尺寸不匹配

Question

My code is as below: my dbFeaturesTop and side is a matrix of size 700x128. May I know which part cause the error please? I run this line then error shows.

Subscripted assignment dimension mismatch.

Error in FYPGUI>btnTrainNeuralNetwork_Callback (line 411)
x ( :, sample ) = [(cell2mat(dbFeaturesTop(sample)))
(cell2mat(dbFeaturesSide(sample)))];

x = zeros ( 2, noOfSamples );
x ( :, sample ) = [(cell2mat(dbFeaturesTop(sample))) (cell2mat(dbFeaturesSide(sample)))]

Answer 1

First store the matrix in a temporary variable:

tempMat = [(cell2mat(dbFeaturesTop(sample))) (cell2mat(dbFeaturesSide(sample)))];

Print out the size of that matrix. The error is that x(:, sample) does not match the dimensions of tempMat. sample should be a vector such that the dimensions should match up.