[Numpy-discussion] `missing` argument in genfromtxt only a string?
Mon Sep 14 22:40:39 CDT 2009
On Sep 14, 2009, at 10:55 PM, Skipper Seabold wrote:
> While we're on the subject, the other thing on my wishlist (unless I
> just don't know how to do this) is being able to define a "column map"
> for datasets that have no delimiters. At first each observation of my
> data was just one long string with no gaps or regular breaks but I
> knew which columns had what. Eg., the first variable was (not
> zero-indexed) columns 1-6, the second columns 11-15, the third column
> 16, etc. so I would just say delimiter = [1:6,11:15,16,...].
Fixed-width fields should already be supported. Instead of delimiter=
[1-6, 7-10, 11-15, 16]..., use delimiter=[6, 4, 4, 1] (that is, just
give the widths of the fields).
Note that I wouldn't be surprised at all if it failed for some corner
cases (eg, if you need to read the name from the first line).
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