[Numpy-discussion] how to build a series of arrays as I go?
Travis E. Oliphant
Mon Mar 17 12:52:11 CDT 2008
Chris Withers wrote:
> Hi All,
> I'm using xlrd to read an excel workbook containing several columns of
> data as follows:
Generally, arrays are not efficiently re-sized. It is best to
pre-allocate, or simply create a list by appending and then convert to
an array after the fact as you have done.
If you need to resize, then use the resize *function* which basically
handles the creating of the new array. However, it also replicates the
data, which may not be what you want.
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