Python equivalent of R's c()?

Question

This question has already been asked here: Python equivalent of R c() function, but unfortunately the solution given doesn't exactly apply to me.

For instance, if I combine values, into a vector or list, in R like so:

x = c(2,3,6,8)

I can preform calculations on that list, for example:

x*2
Output:
4 6 12 16

However, I'm not sure how to achieve the same thing in Python. The previously asked question (in the link above) deals with a list of numbers in a particular range. for example,

x = list(range(1:10))

I am wondering, how do I define a list of numbers (not in a range) in Python?

If you're using `numpy`, then you just do `x = np.array([2, 3, 6, 8])` then `x * 2` ? eg - you actually give it a `list` of numbers... — Jon Clements, Nov 12 '18 at 16:44
(1) That does define a list -- it just creates it from a range; (2) if you want elementwise operations on vectors/matrices/n-dim arrays, use `numpy`. — Linuxios, Nov 12 '18 at 16:45
duplicate of https://stackoverflow.com/questions/32443778/python-equivalent-of-r-c-function — Jean-François Fabre, Nov 12 '18 at 19:47

evinoshea · Answer 1 · 2018-11-12T17:30:21.157

-2

in python, you could use numpy arrays to do such things

import numpy
x = numpy.array([2, 3, 7])
y = x*2

and y will be equal to numpy.array([4, 6, 14])

edited Nov 12 '18 at 17:30

answered Nov 12 '18 at 16:46

evinoshea

32
5

I'm afraid not, that would produce: `[2, 3, 7, 2, 3, 7]` – LeKhan9 Nov 12 '18 at 16:47
Python does that for a different purpose. – Austin Nov 12 '18 at 16:49
Thats my bad, I was thinking of numpy arrays, which should have just been my original answer... – evinoshea Nov 12 '18 at 17:31

Python equivalent of R's c()?

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