[Numpy-discussion] Nested recarrays with subarrays and loadtxt: a bug in loadtxt?
Wed May 27 18:03:11 CDT 2009
On May 27, 2009, at 6:15 PM, Fernando Perez wrote:
> Hi Pierre,
> On Wed, May 27, 2009 at 3:01 PM, Pierre GM <email@example.com>
>> Have you tried np.lib.io.genfromtxt ?
> I didn't know about it, but it has the same problem as loadtxt:
Oh yes indeed. Yet another case of "I-opened-my-mouth-too-soon'...
OK, so there's a trick. Kinda:
* Define a specific converter:
# Convert the strings to int
val = [int(_) for _ in values.split()]
new = np.array(val, dtype=int).reshape(2,3)
out = tuple([tuple(_) for _ in new])
* Now, make sure that the column-delimiter is set to '\t' and use the
data = genfromtxt(txtdata,dt, delimiter="\t",
That works if your second line is "aaaa 2.0 7.4 2 11 22 3 4 56"
instead of "aaaa 2.0 7.4 2 11 22 3 4 5 6" (that is, if you have
exactly 6 ints in the last entry, not 7). Note that youcould modify
the converter to deal with that if needed.
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