Clifford Sobchuk writes:
>
> I found a couple of problems in my rcols format and
> the regexp and have corrected that so that rcols
> responds without error. I missed that the INCLUDE is
> just the filter and had the listed the columns as per
> the groupings, and I had forgotten the PERLCOL in the
> column identifiers.
Hi Cliff-
Are you using the latest PDL? The PERLCOLS support
in rcols() should allow you to get any columns you
select as a ref to a perl array rather than a piddle:
pdl> # cat eg.cols
1 1 11 one 1 oneone 1 oneoo 111 -1.1
1111
2 2 22 one 2 oneone 2 oneoo 222 -2.2
2222
3 3 33 one 3 oneone 3 oneoo 333 -3.3
3333
4 4 44 one 4 oneone 4 oneoo 444 -4.4
4444
5 5 55 one 5 oneone 5 oneoo 555 -5.5
5555
Without PERLCOLS you get this
pdl> p join "\n", rcols 'eg.cols', { INCLUDE=>'/^\s+\d\t\d/' }
Reading data into piddles of type: [ Double Double Double Double Double Double
Double Double Double Double Double ]
Read in 5 elements.
[1 2 3 4 5]
[1 2 3 4 5]
[11 22 33 44 55]
[0 0 0 0 0]
[1 2 3 4 5]
[0 0 0 0 0]
[1 2 3 4 5]
[0 0 0 0 0]
[111 222 333 444 555]
[-1.1 -2.2 -3.3 -4.4 -5.5]
[1111 2222 3333 4444 5555]
But with PERLCOLS you get this
pdl> p join "\n", rcols 'eg.cols', { INCLUDE=>'/^\s+\d\t\d/', PERLCOLS=>[3,5,7]
}
Reading data into piddles of type: [ Double Double Double Double Double Double
Double Double ]
Read in 5 elements.
[1 2 3 4 5]
[1 2 3 4 5]
[11 22 33 44 55]
ARRAY(0x3821050)
[1 2 3 4 5]
ARRAY(0x3821938)
[1 2 3 4 5]
ARRAY(0x3821488)
[111 222 333 444 555]
[-1.1 -2.2 -3.3 -4.4 -5.5]
[1111 2222 3333 4444 5555]
Cheers,
Chris
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