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How can I sort a large sparse matrix and then export the result in matlab?

Good afternoon!

I have to process a large sparse matrix whose size is 6004*17842 (doc*terms). The function find() has been tried to get its rows, cols and values and the result has been save in ascii form. But the terms are not sorted in each document. Could anyone suggest me a way to sort the matrix and export the sorted result please?

Your suggestion will be highly appreciated.

Thanks in advance.

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