---
name: "meltEHH"
section: "1"
platform: "linux"
package: "libvcflib-tools"
version: "1.0.12+dfsg-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/meltEHH"
---

# meltEHH(1)

## NAME

**meltEHH**

## SYNOPSIS

**meltEHH** –target 0,1,2,3,4,5,6,7 –pos 10 –file my.phased.vcf  –region chr1:1-1000 \> STDOUT 2\> STDERR

## DESCRIPTION

## OPTIONS

-

  ```
   **meltEHH** provides the data to plot extended haplotype homozygosity
  (EHH) curves and produces the data to generate the following plot:
  <img src="https://github.com/vcflib/vcflib/blob/master/examples/example-ehh.png?raw=true" alt="" width=400>
       **meltEHH** provides the data to plot EHH curves.
  Output : 4 columns :
       1. seqid
       2. position
       3. EHH
       4. ref or alt [0 == ref]
  Params:
         required: t,target   <STRING>  A zero base comma separated list of target
                                       individuals corresponding to VCF columns
         required: r,region   <STRING>  A tabix compliant genomic range
                                       format: "seqid:start-end" or "seqid"
         required: f,file     <STRING>  Proper formatted and phased VCF.
         required: y,type     <STRING>  Genotype likelihood format: GT,PL,GL,GP
         required: p,position <INT>     Variant position to melt.
         optional: a,af       <DOUBLE>  Alternative alleles with frequencies less
                                       than [0.05] are skipped.
  Type: statistics
  ```

## EXIT VALUES

- **0**

  Success

- **not 0**

  Failure

## SEE ALSO

[**vcflib**(1)](/vcflib/1.md)

## OTHER

## LICENSE

Copyright 2011-2024 (C) Erik Garrison and vcflib contributors. MIT licensed. Copyright 2020-2024 (C) Pjotr Prins.

## AUTHORS

Erik Garrison and vcflib contributors.