# Gnuplot.jl: errors and correlation matrix from fit?

**URL:** <https://discourse.julialang.org/t/gnuplot-jl-errors-and-correlation-matrix-from-fit/54411>\
**Category:** General Usage\
**Tags:** gnuplot\
**Created:** [February 1, 2021, 7:26pm UTC](https://discourse.julialang.org/t/gnuplot-jl-errors-and-correlation-matrix-from-fit/54411 "2021-02-01T19:26:21Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Vasily\_Pisarev](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/vasily_pisarev/32/7929_2.png) [@Vasily\_Pisarev](https://discourse.julialang.org/u/Vasily_Pisarev)\
**Post date:** [February 1, 2021, 7:26pm UTC](https://discourse.julialang.org/t/gnuplot-jl-errors-and-correlation-matrix-from-fit/54411/1 "2021-02-01T19:26:22Z")

</div>

The Gnuplot.jl manual nicely shows how to use curve-fitting feature of gnulot from Julia and get the converged fit parameters. Is it possible to get the estimated uncertainties of the parameters and the correlation matrix which gnuplot shows when `fit` command is called? Or, as an alternative, is it possible to dump gnuplot command-line output to a file?