template to handle strings on x axis w/ legend

[impressostudios]

bool named_plot(const std::string& name, const std::vectorstd::string& x, const std::vector<Numeric>& y, const std::string& format = "") { .. }

added template to be able to have named legend plotting: ex: time(x) vs signal(y) with legend. Prior to this change, the current library implements simple plots with no legends and with this change the above should be possible.

[lava]

Thanks for contributing!

I'm a bit confused if/why this works, it's not mentioned on the matplotlib docs that x can be a vector of strings: https://matplotlib.org/stable/api/_as_gen/matplotlib.pyplot.plot.html

Would you mind adding an example that uses this function, so I can check out that this works as it should?

[impressostudios]

Hi,

This is needed as Python can handle string conversions easily for some users.. But to look forward to similar functionality in CPP, we sometimes need texts / name plots or here in my case I wanted to have time in "<Month>< >Year" format on the X-Axis.

I used it to represent peak speed reached per month for a vehicle using:

    plot::named_plot("Vehicle speed (max)", mon_yy, veh_spd); //

where mon_yy and veh_spd are vectors of which mon_yy is a mix of string and numbers.

The resultant looks similar to this:

[image: image.png] The current implementation will not accept spaces or characters as vectors. Hence just prototyped a simple template for strings.

I hope this helps!

Thank you!

On Fri, Apr 2, 2021 at 4:40 PM Benno Evers @.***> wrote:

Thanks for contributing!

I'm a bit confused if/why this works, it's not mentioned on the matplotlib docs that x can be a vector of strings: https://matplotlib.org/stable/api/_as_gen/matplotlib.pyplot.plot.html

Would you mind adding an example that uses this function, so I can check out that this works as it should?

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[impressostudios]

@lava this is open for more than 2 years. if my response answers your question, can you please merge my pull request ?