`whylogs.core.statistics.stringtracker`¶

Module Contents¶

`CharPosTracker`	Track statistics for character positions within a string
`StringTracker`	Track statistics for strings

class whylogs.core.statistics.stringtracker.CharPosTracker(character_list: str = None)¶

Track statistics for character positions within a string

Parameters: character_list (str) – string containing all characters to be tracked this list can include specific unicode characters to track.

update(self, value: str, character_list: str = None) → None¶

update

Parameters

value (str) – utf-16 string
character_list (str, optional) – use a specific character_list for the tracked string. Note that modifing it from a previous saved choice, will reset the character position map, since NITL no longer has the same context.

Merges two Char Pos Frequency Maps

static from_protobuf(message: whylogs.proto.CharPosMessage)¶

Load from a CharPosMessage protobuf message

class whylogs.core.statistics.stringtracker.StringTracker(count: int = None, items: datasketches.frequent_strings_sketch = None, theta_sketch: whylogs.core.statistics.thetasketch.ThetaSketch = None, length: whylogs.core.statistics.numbertracker.NumberTracker = None, token_length: whylogs.core.statistics.numbertracker.NumberTracker = None, char_pos_tracker: CharPosTracker = None, token_method: Callable[[], List[str]] = None)¶

Track statistics for strings

Parameters

update(self, value: str, character_list=None, token_method=None)¶

Add a string to the tracking statistics.

If value is None, nothing will be done

merge(self, other)¶

Merge the values of this string tracker with another

to_protobuf(self)¶

Return the object serialized as a protobuf message

static from_protobuf(message: whylogs.proto.StringsMessage)¶

Load from a protobuf message

to_summary(self)¶

Generate a summary of the statistics