I have an array like ['a','b','c','d','e','f']. How can i convert it to an array of arrays such that [['a','b'],['c','d'],['e','f']]
I have tried appending it normally but it give some random result
inputArr = input.split(',')
i=0
Yy = []
while i < len(inputArr):
temp = [inputArr[i], inputArr[i+1]]
Yy.append(temp)
i += 2
Output : [ 'a', 'b,c', 'd,e', 'f' ]
I tried your code and got no error. However, if you did, you can try this way:
new_list = [lst[i:i+2] for i in range(0, len(lst), 2)]
This outputs: [['a', 'b'], ['c', 'd'], ['e', 'f']], using list comprehension, which I suppose is what you want.
If you wanted an output of [['a', 'b', 'c'], ['d', 'e', 'f']], then change the i:i+2 to i:i+3 and change (0, len(lst), 2) at the end to (0, len(lst), 3).
You can use range wich takes (start, stop, step)
lst = ['a','b','c','d','e','f']
new_lst = []
for i in range(0,len(lst), 2):
new_lst.append(lst[i:i+2])
print(new_lst)
notice that we step twice and slice the list with 2 futher index positions.
output: [['a', 'b'], ['c', 'd'], ['e', 'f']]
use can use numpy:
import numpy as np
a = ['a','b','c','d','e','f']
n = np.array(a)
print(n.reshape(3,2))
print(Yy)gives[['a', 'b'], ['c', 'd'], ['e', 'f']]inputArrand notYy?