I have 8
elements and I want to add them into a array in numpy. I used np.append()
but it seems that I can only add two elements at one time. I want to add all 8
elements at once. first_1 =35.72438966508524
, first_2 = 35.73839550991734
, etc.
35.72438966508524 35.73839550991734 35.81944190992304
35.80549149559467 35.78399019604507 36.03781192909738
35.9957696566448 35.94692998938782
np.append(first_1,first_2,first_3,first_4,first_5,first_6,first_7,first_8)
The error is
TypeError: append() takes from 2 to 3 positional arguments but 8 were given
np.array([first_1,first_2,first_3,first_4,first_5,first_6,first_7,first_8])
Correct syntax is (if I suppose that you wanted to append your 8 values to an numpy array named as ar
:
np.append(ar, (first_1, first_2, first_3, first_4, first_5, first_6, first_7, first_8))
first = 35.72438966508524
second = 35.73839550991734
third = 35.81944190992304
forth = 35.80549149559467
fifth = 35.78399019604507
sixth = 36.03781192909738
seventh = 35.9957696566448
eighth = 35.94692998938782
now to make a new numpy array:
a = np.array([first, second, third, forth, fifth, sixth, seventh, eighth])
output:
a
Out[89]:
array([35.72438967, 35.73839551, 35.81944191, 35.8054915 , 35.7839902 ,
36.03781193, 35.99576966, 35.94692999])
to append to existing array (using previously created 'a'):
a = np.append(a, [first, second, third, forth, fifth, sixth, seventh, eight], axis=0)
which gives:
a
Out[93]:
array([35.72438967, 35.73839551, 35.81944191, 35.8054915 , 35.7839902 ,
36.03781193, 35.99576966, 35.94692999, 35.72438967, 35.73839551,
35.81944191, 35.8054915 , 35.7839902 , 36.03781193, 35.99576966,
35.94692999])
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