xlsread and MATLAB engine timing

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Caroline
Caroline 2013-7-30
I am using the MATLAB engine to access the function xlsread through C++. The C++ script calls xlsread multiple times to read various columns of different sheets of the same excel document. And while it works correctly, running it takes a while (about 2 minutes). Does anyone know of a faster way to do this?
Thanks!

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回答（1 个）

Kevin
Kevin 2013-7-30
Hey Caroline,
Do you ever access the same sheet on two separate occasions? If so I'd save the sheet as a variable to prevent xlsread from being called again. It seems to be an expensive operation to me.
KD
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Caroline
Caroline 2013-7-30
Hi Kevin,
Thanks so much for answering me! I'm not sure I understand what you mean by save that sheet as a variable. To clarify, do you mean read in the whole sheet at once, as opposed to reading separate columns at different times, and save the cell array that it returns as a variable?
Thanks again!

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