困った点 import numpy as np data = np.array([1.23, 4.56, 7.89], dtype=np.float32) no_value = np.float32(-9999) factor = 100 data = np.ma.masked_equal(data, no_value) # 1. Using data[~data.mask] result1 = data[~data.mask] * factor print(result1) # [[123.00000191 455.99999428 788.99998665]] print(type(res…