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Error inside the function,"Struct contents reference from a non-struct array object"?

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arun
arun 2017-1-10
关闭： MATLAB Answer Bot 2021-8-20
Error in split_train_test (line 11) idx_label = find(dataset.label == i);
tr_num = 240;
field = 'label';
value = {tottrainlabel};
dataset = struct(field,value);
class_num = length(unique(dataset.label));
fr_dat_split = split_train_test(F, tr_num,class_num);
function dataset_split = split_train_test(dataset, tr_num, class_num)
if nargin < 3
class_num = length(unique(dataset.label));
end
tr_idx = [];
tt_idx = [];
for i = 1 : class_num
idx_label = find(dataset.label == i);
num = length(idx_label);
idx_rand = randperm(num);
tr_idx = [tr_idx idx_label(idx_rand(1 : tr_num))];
tt_idx = [tt_idx idx_label(idx_rand(tr_num+1 : end))];
end

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回答（1 个）

Walter Roberson
Walter Roberson 2017-1-10
Your call
fr_dat_split = split_train_test(F, tr_num, class_num);
is not passing the dataset into the function: it is passing some other variable, F instead. F is not a structure, whatever it is.
  2 个评论
arun
arun 2017-1-10
I made the changes you told, but the function produces another error
Index exceeds matrix dimensions.
Error in split_train_test (line 15)
tr_idx = [tr_idx idx_label(idx_rand(1 : tr_num))];

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