numpy.ma.left_shift#

ma.left_shift(a,n)[source]#

Shift the bits of an integer to the left.

This is the masked array version ofnumpy.left_shift, for detailssee that function.

See also

numpy.left_shift

Examples

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Shift with a masked array:

>>>arr=np.ma.array([10,20,30],mask=[False,True,False])>>>np.ma.left_shift(arr,1)masked_array(data=[20, --, 60],             mask=[False,  True, False],       fill_value=999999)

Large shift:

>>>np.ma.left_shift(10,10)masked_array(data=10240,             mask=False,       fill_value=999999)

Shift with a scalar and an array:

>>>scalar=10>>>arr=np.ma.array([1,2,3],mask=[False,True,False])>>>np.ma.left_shift(scalar,arr)masked_array(data=[20, --, 80],             mask=[False,  True, False],       fill_value=999999)

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