---
name: "ps_lav"
section: "1"
platform: "linux"
package: "fasta3"
version: "36.3.8i.14-Nov-2020-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/ps_lav"
---

# ps\_lav(1)

plot an "lav" file in postscript.

## NAME

ps\_lav \[-B\] \[-Z db\_size\] - plot an "lav" file in postscript.

## DESCRIPTION

ps\_lav is a simple program to take "lav" format output from "lalign35" and produce postscript alignment plots (which look like "dot-plots"). It was designed to work with the output of the `lalign35` program, but should work with other `lav` output as well.

- \-B

  color alignment lines using the "bit" score.

- \-Z db\_size

  set the effective database size for an E()-value calculate to db\_size, and color alignment lines using E()-values.  Requires bit scores in the `lav` ouput.

## AUTHOR

Bill Pearson\
 wrp@virginia.EDU