[Numpy-discussion] Joining lists to an array
Florian Lindner
mailinglists at xgm.de
Mon Dec 2 11:52:07 EST 2013
Hello,
I have this piece of example code
import random, numpy as np
y = []
doc_all = []
# da = np.zeros(2)
for i in range(4):
docs = range(random.randint(1, 10))
y += [i]*len(docs)
doc_all += docs
# np.append(da, np.column_stack((docs, y)), axis=0)
data = np.array([doc_all, y]).transpose()
y and docs are lists that are created in the loop body and all joined
together. From these two long lists an array is created at the end.
At the end data has a shape like (28, 2).
Is there a way I can do this more elegantly using numpy or scipy tricks? I was
working on something like the two lines I commented out, but ...
Thanks,
Florian
More information about the NumPy-Discussion
mailing list