Read blank row as 0

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Rodrigo Trigona
Rodrigo Trigona 2012-9-26
What function in MATLAB can I use that reads an excel line and plots 0 when it has a blank space

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回答（1 个）

Matt Fig
Matt Fig 2012-9-26
Blank rows are read as nans with xlsread. So use
N(isnan(N))=0
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Matt Fig
Matt Fig 2012-9-26
N is the output from xlsread, assuming you have numeric data. See the help for xlsread.
help xlsread
Image Analyst
Image Analyst 2012-9-27
N = xlsread(filename);
Where there is a blank cell in the Excel worksheet, N will be NaN at those locations, and N will have valid numbers at other locations where you have valid numbers in the worksheet. Matt's code changes those matrix locations with NaN's in them from NaN to 0, as you requested. Understand?

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