NEWS

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tsqn 1.2.0 (2026-03-16)

Data and Documentation

• Added built-in dataset pm10 (1826 x 8) from dataset/pm10data.csv.
• Added dataset help page ?pm10.
• Added a new vignette in vignettes/pm10-example.Rmd showing robust covariance/correlation, robust ACF, and robust GPH estimation with pm10.

tsqn 1.1.0

Performance

• Optimized corQn() and covQn() to reduce temporary allocations and redundant computations.
• Reworked corMatQn() and covMatQn() to cache per-column Qn scales and compute symmetric matrix entries once.
• Optimized robacf() internals to avoid repeated scale recomputation in multivariate settings.
• Reduced loop overhead in PerioMrob(), PerQn(), and GPH_estimate() while preserving formulas and returned values.