if I have array: a=[1,2,3] b=[7,8,9] I want to get new array c=[1,7,2,8,3,9], which is alternating arrangement between a and b. How to use np.insert on that case?
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1 Answer
# solution 1
import numpy as np
a=[1, 2, 3]
b=[7, 8, 9]
list(np.transpose((a,b)).flatten())
# output [1, 7, 2, 8, 3, 9]
# solution 2
import operator
a=[1, 2, 3]
b=[7, 8, 9]
reduce(operator.concat, map(lambda x, y : [x, y], a, b))
# output [1, 7, 2, 8, 3, 9]
1 Comment
Chris
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