Compute Statistics for All Intervals (Batch, SIMD-Optimized) — textgrid_interval_statistics

Compute statistics (duration, etc.) for all intervals in a tier. Single C++ call instead of looping in R. Uses SIMD for duration calculation when available.

Usage

textgrid_interval_statistics_batch(textgrid_xptr, tier_number)

Arguments

textgrid_xptr: External pointer to TextGrid object
tier_number: Tier number (1-based)

Value

Data frame with columns: - index: Interval index - label: Interval label - start: Start time - end: End time - duration: Duration (end - start)

Details

Duration calculation uses SIMD vectorization when available, for large interval counts (>100).

Examples

tg <- textgrid_create(0, 1, "phones")
tg$insert_boundary("phones", 0.4)
tg$set_interval_text("phones", 1, "sil")
tg$set_interval_text("phones", 2, "V")

stats <- textgrid_interval_statistics_batch(tg$.xptr, tier_number = 1)
mean(stats$duration[stats$label == "V"])  # Mean voiced interval duration
#> [1] 0.6