Port of stm:::checkBeta: finds (topic, word) cells whose exp(logbeta)
exceeds 1 - tolerance — words that are nearly exclusive to a single topic,
which can destabilize estimation.
Usage
checkBeta(stmobject, tolerance = 0.01)
Arguments
- stmobject
A faSTM/stm fit.
- tolerance
Threshold; a word with topic-probability > 1 - tolerance is flagged.
Value
A list with problemTopics, problemWords, and error counts per content group.