divide data set in matlab code

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Suzanne Hussein
Suzanne Hussein 2015-5-17
评论： Walter Roberson 2015-5-17
How can divide dataset into 80% training set and 20% test set in matlab code??

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Walter Roberson
Walter Roberson 2015-5-17
nrows = size(YourData,1);
r80 = round(0.80 * nrows);
trainingset = YourData(1:r80,:,:);
testset = YourData(r80+1:end,:,:);
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Suzanne Hussein
Suzanne Hussein 2015-5-17
?? Error using ==> randperm Too many input arguments.
Error in ==> dividet at 3 rand80 = randperm(nrows,r80); how can i solve it?
Walter Roberson
Walter Roberson 2015-5-17
You are using an old version of MATLAB. The equivalent code is
rand80 = randperm(nrows);
rand80 = rand80(1:r80);

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Image Analyst
Image Analyst 2015-5-17
randperm() is probably the function you're looking for. We can help more if you say what your dataset is.
dataset is a deprecated variable type - the Mathworks recommends that you use a table instead.
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Suzanne Hussein
Suzanne Hussein 2015-5-17
my dataset is 99X13 double, 12 Dimensions and last column is label of classes

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