# Covariance Fixed to 1

**URL:** <https://isgw-forum.colorado.edu/t/covariance-fixed-to-1/867>\
**Category:** Day 6\
**Created:** [June 10, 2026, 1:41pm UTC](https://isgw-forum.colorado.edu/t/covariance-fixed-to-1/867 "2026-06-10T13:41:38Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![anonymous](https://isgw-forum.colorado.edu/letter_avatar_proxy/v4/letter/a/8491ac/32.png) [@anonymous](https://isgw-forum.colorado.edu/u/anonymous)\
**Post date:** [June 10, 2026, 1:41pm UTC](https://isgw-forum.colorado.edu/t/covariance-fixed-to-1/867/1 "2026-06-10T13:41:38Z")

</div>

When you fix a covariance to 1, does this mean in layman’s terms that the two variants perfectly covary?

> Replying to “When you fix a covariance to 1, does this mean in …”:

Yep!

> Replying to “When you fix a covariance to 1, does this mean in …”:

(Well, actually, it means that they perfectly covary if their variances are 1 - meaning they’re standardized.)

> Replying to “When you fix a covariance to 1, does this mean in …”:

Yes, but importantly we are looking at traits here and not variants :)

> Replying to “When you fix a covariance to 1, does this mean in …”:

not specific variants\*

> Replying to “When you fix a covariance to 1, does this mean in …”:

so not the snps?

> Replying to “When you fix a covariance to 1, does this mean in …”:

variance and variances (properties of a trait/variable)not variants (snps) - sorry I know this is hard to hear some times