Floating point numeric display vs engineering / exponential notation

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Malcolm Brown
Malcolm Brown 2013-1-18
I'm importing data from csv files. In that data I have mixed text and floating point numbers. How can I get MatLab to display floating point numbers in the original format as opposed to the engineering/exponential format ?
I find it a lot easier to read 1326.949233 than I do 1.326949233000000e+03 for instance.
TIA, Mal

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回答（1 个）

Brian B
Brian B 2013-1-18
The format in which the numbers are printed is not affected by the source (in this case, a CSV file). That is, as long as you read the CSV file into a double array, MATLAB will store the numbers internally as doubles and will print them according to one of it's standard printing formats. Type
help format
to see the options and an explanation of each one.
If you want to preserve the formatting that is used in the CSV file, you need to read the file as text.
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Brian B
Brian B 2013-1-18
Actually you can get some robustness to large numbers by adding spaces in the format string, though the decimals still may not line up if the number of digits to the left of the decimal is too large:
fprintf([repmat('% 25.15f ',1,size(A,2)) '\n'],100000*A) % prints in fixed-point format

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