This community-built FAQ covers the “Two-Dimensional Arrays” exercise from the lesson “Introduction to NumPy”.
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Two-Dimensional Arrays
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Why doesn’t this code work here:
coin_toss_again = np.array([[coin_toss],[0,0,1,1,1]])
1 Like
If you remove the brackets around ‘coin_toss’ it will work. ‘coin_toss’ does not need brackets as it is already an array/list.
Why does it matter that the results of ‘coin_toss’ goes first in the new array? I was stumped on why my code didn’t work and the solution was that it was because I had the result of ‘coin_toss’ listed as the 2nd part of the array.
Hi,
When using np.array to create a list of lists and printing the result afterwards, do I need to insert the list() function within the print statement ?
new_array = np.array([[92, 94, 88, 91, 87], [79, 100, 86, 93, 91], [87, 85, 72, 90, 92]])
print(new_array) OR print(list(new_array)) — I do not understand when list() needs to be in the print statement…
Grateful for any advice, thanks!
You can create a python list in two ways;
list( <some data> )
or
[ <some data> ]
They are interchangeable, and you should get the same result.
rootjr
December 8, 2020, 2:04pm
7
So you need to retype the first array and the second to append the new list? How is this easier than just using a list and .append as opposed to an array?
I don’t know what is wrong with my code.
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