get_duration_standard_deviation()

Computes standard deviation of spell durations for each sequence.

Function

from sequenzo import get_duration_standard_deviation
result = get_duration_standard_deviation(seqdata, type=1, with_missing=False)

Parameters

• seqdata: SequenceData object.
• type: 1 observed durations, 2 with zero-length for nonvisited states.
• with_missing: include missing state or not.

Returns

DataFrame with duration standard deviation (Dustd or Dustd2).

TraMineR Mapping

• Equivalent TraMineR functions: seqivardur and seqindic (dustd / dustd2).

Author

Code and documentation: Yuqi Liang

References

Ritschard, G. (2023), "Measuring the nature of individual sequences", Sociological Methods and Research, 52(4), 2016-2049. doi:10.1177/00491241211036156.