Can someone help me identify what these colons mean under these brackets?

Question

Hi I have a python code written as followed. Can someone please explain what these colons do?

edges = (data[0,0:-1]+data[0,1])/2.0

counts = data[1,1:]

Is that even valid python? Slices don't have commas... – Zizouz212 Oct 27 '16 at 01:12 — Zizouz212, Oct 27 '16 at 01:12
@Zizouz212 `numpy` and `pandas` let you use commas – furas Oct 27 '16 at 01:16 — furas, Oct 27 '16 at 01:16

score 0 · Answer 1 · edited May 23 '17 at 12:06

0

: is the delimiter of the slice syntax to 'slice out' sub-parts in sequences , [start:end]

[1:5] is equivalent to "from 1 to 5" (5 not included)

[1:] is equivalent to "1 to end"

[len(a):] is equivalent to "from length of a to end"

edited May 23 '17 at 12:06

Community

answered Oct 27 '16 at 01:14

Brent Knox

1 Answers1