# Extracting summary info from multiple MCMCChains programmatically

**URL:** <https://discourse.julialang.org/t/extracting-summary-info-from-multiple-mcmcchains-programmatically/22027>\
**Category:** General Usage\
**Created:** [March 19, 2019, 9:41am UTC](https://discourse.julialang.org/t/extracting-summary-info-from-multiple-mcmcchains-programmatically/22027 "2019-03-19T09:41:48Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![goedman](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/goedman/32/217_2.png) [@goedman](https://discourse.julialang.org/u/goedman)\
**Post date:** [March 19, 2019, 5:51pm UTC](https://discourse.julialang.org/t/extracting-summary-info-from-multiple-mcmcchains-programmatically/22027/5 "2019-03-19T17:51:27Z")

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Let’s see what Cameron thinks. You could write it to an IOBuffer, but it still is just a workaround.

There are also other reasons to have the chain summary programmatically accessible, e.g. for testing and comparisons. Cameron and I have spoken about options such as mean(chain, [:alpha, :sigma]) to make it easier to compute the summary fields, but not about storing and later on retrieving those results.

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_[View the full topic](https://discourse.julialang.org/t/extracting-summary-info-from-multiple-mcmcchains-programmatically/22027)._