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New function LRA() now supports ordinal response data
- Added visualization methods for ordinal scale analysis:
- Score frequency with rank thresholds (ScoreFreq)
- Score-rank probability heatmap (ScoreRank)
- Item category boundary reference (ICBR)
- Item category response profile (ICRP)
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Bug fixes and improvements
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Standardized terminology: unified the usage of "class" and "rank" throughout the package
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Various minor bug fixes