pyarrow.compute.variance#
- pyarrow.compute.variance(array, /, *, ddof=0, skip_nulls=True, min_count=0, options=None, memory_pool=None)#
Calculate the variance of a numeric array.
The number of degrees of freedom can be controlled using VarianceOptions. By default (ddof = 0), the population variance is calculated. Nulls are ignored. If there are not enough non-null values in the array to satisfy ddof, null is returned.
- Parameters:
- arrayArray-like
Argument to compute function.
- ddof
int, default 0 Number of degrees of freedom.
- skip_nullsbool, default
True Whether to skip (ignore) nulls in the input. If False, any null in the input forces the output to null.
- min_count
int, default 0 Minimum number of non-null values in the input. If the number of non-null values is below min_count, the output is null.
- options
pyarrow.compute.VarianceOptions, optional Alternative way of passing options.
- memory_pool
pyarrow.MemoryPool, optional If not passed, will allocate memory from the default memory pool.