Y Axis Padding

hvPlot
1

I can’t get one of my (hv)plots to pad the y axis to allow for the top and bottom columns from the df to be away from the border

image
image753×365 27.6 KB

Here is an MRE.

import numpy as np
import pandas as pd
import hvplot.pandas # noqa
import panel as pn

df = pd.DataFrame(np.random.randint(0,2,size=(100, 26)), columns=list('ABCDEFGHIJKLMNOPQRSTUVWXYZ'))


for col in df.columns:
     df[col] = np.where(df[col] == 1, col, "")


plot = df.hvplot.scatter(framewise=True,
                    shared_axes=False,
                    subcoordinate_y={"subcoordinate_scale": 0.1},
                    title="Test",
                    padding=(0.1, 0.75),
                    responsive=True,
                   legend=False,)

pn.Row(plot).show()

If someone has a better idea of how to plot on / off, 0 / 1, go / no go values without the numpy where and subcoordinate parts please let me know?

2

Maybe manually set the ylim.

import numpy as np
import pandas as pd
import hvplot.pandas  # noqa
import panel as pn

df = pd.DataFrame(
    np.random.randint(0, 2, size=(100, 26)), columns=list("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
)


for col in df.columns:
    df[col] = np.where(df[col] == 1, col, "")


plot = df.hvplot.scatter(
    framewise=True,
    shared_axes=False,
    subcoordinate_y={"subcoordinate_scale": 0.3},
    title="Test",
    responsive=True,
    legend=False,
    ylim=(-0.5, len(df.columns) - 0.5),
)

pn.Row(plot).show()

image
image1920×1519 123 KB

However, feel free to submit an issue to hvplot / holoviews that padding doesn’t handle categoricals.

I think the numpy where is necessary.

1 Like
3

@ahuang11 Thanks for the response. The ylim solution does work in the MRE however in my own plots its results in the top gap being larger than the bottom so I created the github issue.

Y Axis Padding & Categorical Data · Issue #1689 · holoviz/hvplot