LD Clumping (clump)

June 6, 2026 ยท View on GitHub

Use graphld clump for p-value thresholding and LD-based pruning.

Basic Usage

uv run graphld clump \
    /path/to/sumstats.sumstats \
    output.tsv \
    --min-chisq 30 \
    --max-rsq 0.1

Clumping Options

OptionDefaultDescription
--min-chisq30Minimum chi-squared value for index-variant inclusion
--max-rsq0.1Maximum LD threshold for pruning

Inputs And Output

  • Input summary statistics: .sumstats, .vcf/.vcf.gz, or .parquet; see Summary Statistics
  • Output: a tab-separated file of retained index variants

All shared LDGM and runtime options from the CLI overview also apply here.