# Implementation of matlab function in julia (Root locus plot)

**URL:** <https://discourse.julialang.org/t/implementation-of-matlab-function-in-julia-root-locus-plot/91662>\
**Category:** Modelling & Simulations\
**Tags:** function, controlsystems\
**Created:** [December 15, 2022, 12:36am UTC](https://discourse.julialang.org/t/implementation-of-matlab-function-in-julia-root-locus-plot/91662 "2022-12-15T00:36:00Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![baggepinnen](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/baggepinnen/32/693_2.png) [@baggepinnen](https://discourse.julialang.org/u/baggepinnen)\
**Post date:** [December 16, 2022, 4:50am UTC](https://discourse.julialang.org/t/implementation-of-matlab-function-in-julia-root-locus-plot/91662/11 "2022-12-16T04:50:57Z")

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The warning is due to the plot recipe having hover information, but you’re plotting the GR, a backend that does not support hover information. If you use plotly, you can hover the mouse above the plot to see the gain value at a particular point on the curve.

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_[View the full topic](https://discourse.julialang.org/t/implementation-of-matlab-function-in-julia-root-locus-plot/91662)._