pandas.io.formats.style.Styler.background_gradient

Styler.background_gradient(self, cmap='PuBu', low=0, high=0, axis=0, subset=None, text_color_threshold=0.408, vmin: Union[float, NoneType] = None, vmax: Union[float, NoneType] = None)

Color the background in a gradient style.

The background color is determined according to the data in each column (optionally row). Requires matplotlib.

Parameters

cmapstr or colormap

Matplotlib colormap.

lowfloat

Compress the range by the low.

highfloat

Compress the range by the high.

axis{0 or ‘index’, 1 or ‘columns’, None}, default 0

Apply to each column (axis=0 or 'index'), to each row (axis=1 or 'columns'), or to the entire DataFrame at once with axis=None.

subsetIndexSlice

A valid slice for data to limit the style application to.

text_color_thresholdfloat or int

Luminance threshold for determining text color. Facilitates text visibility across varying background colors. From 0 to 1. 0 = all text is dark colored, 1 = all text is light colored.

New in version 0.24.0.

vminfloat, optional

Minimum data value that corresponds to colormap minimum value. When None (default): the minimum value of the data will be used.

New in version 1.0.0.

vmaxfloat, optional

Maximum data value that corresponds to colormap maximum value. When None (default): the maximum value of the data will be used.

New in version 1.0.0.

Returns

selfStyler

Raises

ValueError

If text_color_threshold is not a value from 0 to 1.

Notes

Set text_color_threshold or tune low and high to keep the text legible by not using the entire range of the color map. The range of the data is extended by low * (x.max() - x.min()) and high * (x.max() - x.min()) before normalizing.

pandas.io.formats.style.Styler.applymap pandas.io.formats.style.Styler.bar