VertexFrame count¶
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count(self, where)¶ Counts the number of rows which meet given criteria.
Parameters: where : function
UDF which evaluates a row to a boolean
Returns: : int
number of rows for which the where UDF evaluated to True.
count(self, where)¶Counts the number of rows which meet given criteria.
| Parameters: | where : function
|
|---|---|
| Returns: | : int
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