numpy.ma.MaskedArray.tolist() function – Python
numpy.ma.MaskedArray.tolist() function return the data portion of the masked array as a hierarchical Python list.
Syntax : numpy.ma.MaskedArray.tolist(fill_value = None)
Parameters :
axis : [scalar, optional] The value to use for invalid entries. Default is None.Return : [list] The Python list representation of the masked array.
Code #1 :
# Python program explaining # numpy.ma.MaskedArray.tolist() function # importing numpy as geek # and numpy.ma module as ma import numpy as geek import numpy.ma as ma arr = geek.ma.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], mask =[0] + [1, 0] * 4) gfg = arr.tolist() print (gfg) |
Output :
[[1, None, 3], [None, 5, None], [7, None, 9]]
Code #2 :
# Python program explaining # numpy.ma.MaskedArray.tolist() function # importing numpy as geek # and numpy.ma module as ma import numpy as geek import numpy.ma as ma arr = geek.ma.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], mask =[0] + [1, 0] * 4) gfg = arr.tolist(-999) print (gfg) |
Output :
[[1, -999, 3], [-999, 5, -999], [7, -999, 9]]
