i want to select the president whose tall more than 182 and age more than 50 what is the error in my code

Question

import numpy as np

heights_arr = np.array([189, 170, 189, 163, 183, 171, 185, 168, 173, 183, 173, 173, 175, 178, 183, 193, 178, 173, 174, 183, 183, 180, 168, 180, 170, 178, 182, 180, 183, 178, 182, 188, 175, 179, 183, 193, 182, 183, 177, 185, 188, 188, 182, 185, 191])
ages_arr = np.array([57, 61, 57, 57, 58, 57, 61, 54, 68, 51, 49, 64, 50, 48, 65, 52, 56, 46, 54, 49, 51, 47, 55, 55, 54, 42, 51, 56, 55, 51, 54, 51, 60, 62, 43, 55, 56, 61, 52, 69, 64, 46, 54, 47, 70]).reshape((-1,1))

heights_arr = heights_arr.reshape((45,1))
height_age_arr = np.hstack((heights_arr, ages_arr))

mask = height_age_arr[:, 0] >= 182
tall_presidents = (height_age_arr[mask, ])
talll = (height_age_arr[mask,1] >= 50)
wt = (mask[ ,talll])
print(tall_presidents)
print(wt)

tall_presidents.shape

print(tall_presidents.shape)

Answer 1

Error In you code:
At line 12, wt = (mask[ ,talll])
First the syntax is wrong and second size of "talll" array is smaller than "mask" array(so don't have enough corresponding Boolean for number of elements in mask)

Right Code:
import numpy as np

heights_arr = np.array([189, 170, 189, 163, 183, 171, 185, 168, 173, 183, 173, 173, 175, 178, 183, 193, 178, 173, 174, 183, 183, 180, 168, 180, 170, 178, 182, 180, 183, 178, 182, 188, 175, 179, 183, 193, 182, 183, 177, 185, 188, 188, 182, 185, 191])
ages_arr = np.array([57, 61, 57, 57, 58, 57, 61, 54, 68, 51, 49, 64, 50, 48, 65, 52, 56, 46, 54, 49, 51, 47, 55, 55, 54, 42, 51, 56, 55, 51, 54, 51, 60, 62, 43, 55, 56, 61, 52, 69, 64, 46, 54, 47, 70]).reshape((-1,1))

heights_arr = heights_arr.reshape((45,1))
height_age_arr = np.hstack((heights_arr, ages_arr))

#All taller than 182
talls = heights_arr > 182
#All older than 50
olds = ages_arr > 50

#Adding both Boolean array
mask = np.logical_and(talls,olds).reshape(45,)

print(height_age_arr[mask])

Hope It Helps