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Option for adding errorbar legend #440

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Option for adding errorbar legend#440

Description

@kinyatoride
kinyatoride
opened on Nov 17, 2023

Description

Hi, I think it will be great if we have an option to show error bar in the legend similar to what shade and fade do.

Current behavior

Currently, we cannot show error bar in the legend. Only the line is shown in the left figure.

import numpy as np
import pandas as pd
import proplot as pplt

state = np.random.RandomState(51423)
data = state.rand(20, 8).cumsum(axis=0).cumsum(axis=1)[:, ::-1]
data = data + 20 * state.normal(size=(20, 8)) + 30
data = pd.DataFrame(data, columns=np.arange(0, 16, 2))

fig, axs = pplt.subplots(ncols=2)

ax = axs[0]
h = ax.plot(data, means=True, label='label')
ax.legend(h)

ax = axs[1]
h = ax.plot(data, means=True, shadestd=1, label='label')
ax.legend(h)

output

Proplot version

3.4.3
0.9.7

Activity

  1. cvanelteren commented on Aug 8, 2024

    @cvanelteren
    cvanelteren
    on Aug 8, 2024

    You mean like this:
    image

    see here

    import numpy as np
import pandas as pd
import proplot as pplt

state = np.random.RandomState(51423)
data = state.rand(20, 8).cumsum(axis=0).cumsum(axis=1)[:, ::-1]
data = data + 20 * state.normal(size=(20, 8)) + 30
data = pd.DataFrame(data, columns=np.arange(0, 16, 2))

fig, ax = pplt.subplots()

h = ax.imshow(np.random.rand(10, 10))
ax.colorbar(h, loc="upper right")
pplt.show(block=1)

  2. kinyatoride commented on Aug 8, 2024

    @kinyatoride
    kinyatoride
    on Aug 8, 2024
    Author

    Not actually... That's a colorbar. The error bar is not shown in the legend in my original left figure.

  3. cvanelteren commented on Aug 8, 2024

    @cvanelteren
    cvanelteren
    on Aug 8, 2024

    Ah my bad I read your original question wrong! Use errorbar instead

    import numpy as np
import pandas as pd
import proplot as pplt

state = np.random.RandomState(51423)
data = state.rand(20, 8).cumsum(axis=0).cumsum(axis=1)[:, ::-1]
data = data + 20 * state.normal(size=(20, 8)) + 30
data = pd.DataFrame(data, columns=np.arange(0, 16, 2))

fig, ax = pplt.subplots()
x = np.linspace(0, 10)
y = x
yerr = abs(np.random.randn(x.size))
h = ax.errorbar(x, y, yerr=yerr, label="test")
ax.legend()
pplt.show(block=1)

  4. cvanelteren commented on Aug 8, 2024

    @cvanelteren
    cvanelteren
    on Aug 8, 2024

    image
    For completeness

  5. kinyatoride commented on Aug 8, 2024

    @kinyatoride
    kinyatoride
    on Aug 8, 2024
    Author

    Thanks. My suggestion was to include that option with ax.plot(data, means=True).
    Currently, it is supported when you show errors with shading or fading options e.g. ax.plot(data, means=True, shadestd=1).

    That way, it will be more consistent.

  6. cvanelteren commented on Aug 8, 2024

    @cvanelteren
    cvanelteren
    on Aug 8, 2024

    I see that is a bit inconsistent indeed. I can put this on the stack of todos. Should be an easy fix.

  7. cvanelteren commented on Aug 9, 2024

    @cvanelteren
    cvanelteren
    on Aug 9, 2024

    Note to-self:

    • Extract and pass label to error bar in plot.py @ 1506
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