Plots in the processing choppers notebook don't show all data

[jl-wynen]

The plateau plots in https://scipp.github.io/scippneutron/user-guide/chopper/processing-nexus-choppers.html don't show the data properly. This is because of scipp/plopp#407

[nvaytet]

In that notebook, can't we use

import plopp as pp

pp.plot({'a': a, 'b': b})

instead of going through MPL?

[nvaytet]

Ot just use a DataGroup?

def plot_plateaus(raw_data: sc.DataArray, plateaus: sc.DataArray) -> None:
    to_plot = sc.DataGroup({'raw_data': raw_data})
    for plateau in plateaus:
        i = plateau.coords['plateau'].value
        to_plot[str(i)] = sc.DataArray(
            plateau.data.broadcast(dims=['time'], shape=[2]),
            coords={'time': plateau.coords['time']},
            name=f'Plateau {i}')
    return to_plot.plot()

[jl-wynen]

We can. But that makes handling markers, colors, etc more awkward.

[nvaytet]

We can either let plopp do that for us, or we can use https://scipp.github.io/plopp/user-guide/plot-types/line-plot.html#Customizing-line-styles-for-multiple-entries ?