hvPlot.heatmap#
- hvPlot.heatmap(x=None, y=None, C=None, colorbar=True, logz=False, **kwds)[source]#
heatmap visualises tabular data indexed by two key dimensions as a grid of colored values. This allows spotting correlations in multivariate data and provides a high-level overview of how the two variables are plotted.
Reference: https://hvplot.holoviz.org/reference/tabular/heatmap.html
- Parameters:
- xstring, optional
Field name to draw x coordinates from. If not specified, the index is used. Can refer to continuous and categorical data.
- ystring
Field name to draw y-positions from. Can refer to continuous and categorical data.
- Cstring, optional
Field to draw heatmap color from. If not specified a simple count will be used.
- colorbar: boolean, optional
Whether to display a colorbar. Default is True.
- logzbool
Whether to apply log scaling to the z-axis. Default is False.
- reduce_functionfunction, optional
Function to compute statistics for heatmap, for example np.mean. If omitted, no aggregation is applied and duplicate values are dropped.
- **kwdsoptional
Additional keywords arguments are documented in hvplot.help(‘heatmap’). See Plotting Options for more information.
- Returns:
holoviews.element.HeatMap
/ Panel objectYou can print the object to study its composition and run:
import holoviews as hv hv.help(the_holoviews_object)
to learn more about its parameters and options.
References
Bokeh: https://docs.bokeh.org/en/latest/docs/gallery/categorical_heatmap.html
HoloViews: https://holoviews.org/reference/elements/bokeh/HeatMap.html
Matplotlib: https://matplotlib.org/stable/gallery/images_contours_and_fields/image_annotated_heatmap.html
Examples
import hvplot.pandas import numpy as np from bokeh.sampledata import sea_surface_temperature as sst df = sst.sea_surface_temperature df.hvplot.heatmap( x="time.month", y="time.day", C="temperature", reduce_function=np.mean, height=500, width=500, colorbar=False, cmap="blues" )
Backend-specific styling options#
alpha, annular_alpha, annular_color, annular_fill_alpha, annular_fill_color, annular_hover_alpha, annular_hover_color, annular_hover_fill_alpha, annular_hover_fill_color, annular_hover_line_alpha, annular_hover_line_cap, annular_hover_line_color, annular_hover_line_dash, annular_hover_line_dash_offset, annular_hover_line_join, annular_hover_line_width, annular_line_alpha, annular_line_cap, annular_line_color, annular_line_dash, annular_line_dash_offset, annular_line_join, annular_line_width, annular_muted, annular_muted_alpha, annular_muted_color, annular_muted_fill_alpha, annular_muted_fill_color, annular_muted_line_alpha, annular_muted_line_cap, annular_muted_line_color, annular_muted_line_dash, annular_muted_line_dash_offset, annular_muted_line_join, annular_muted_line_width, annular_nonselection_alpha, annular_nonselection_color, annular_nonselection_fill_alpha, annular_nonselection_fill_color, annular_nonselection_line_alpha, annular_nonselection_line_cap, annular_nonselection_line_color, annular_nonselection_line_dash, annular_nonselection_line_dash_offset, annular_nonselection_line_join, annular_nonselection_line_width, annular_selection_alpha, annular_selection_color, annular_selection_fill_alpha, annular_selection_fill_color, annular_selection_line_alpha, annular_selection_line_cap, annular_selection_line_color, annular_selection_line_dash, annular_selection_line_dash_offset, annular_selection_line_join, annular_selection_line_width, annular_visible, cmap, color, dilate, fill_alpha, fill_color, hover_alpha, hover_color, hover_fill_alpha, hover_fill_color, hover_line_alpha, hover_line_cap, hover_line_color, hover_line_dash, hover_line_dash_offset, hover_line_join, hover_line_width, line_alpha, line_cap, line_color, line_dash, line_dash_offset, line_join, line_width, muted, muted_alpha, muted_color, muted_fill_alpha, muted_fill_color, muted_line_alpha, muted_line_cap, muted_line_color, muted_line_dash, muted_line_dash_offset, muted_line_join, muted_line_width, nonselection_alpha, nonselection_color, nonselection_fill_alpha, nonselection_fill_color, nonselection_line_alpha, nonselection_line_cap, nonselection_line_color, nonselection_line_dash, nonselection_line_dash_offset, nonselection_line_join, nonselection_line_width, selection_alpha, selection_color, selection_fill_alpha, selection_fill_color, selection_line_alpha, selection_line_cap, selection_line_color, selection_line_dash, selection_line_dash_offset, selection_line_join, selection_line_width, ticks_text_align, ticks_text_alpha, ticks_text_baseline, ticks_text_color, ticks_text_font, ticks_text_font_size, ticks_text_font_style, visible, xmarks_alpha, xmarks_color, xmarks_hover_alpha, xmarks_hover_color, xmarks_hover_line_alpha, xmarks_hover_line_cap, xmarks_hover_line_color, xmarks_hover_line_dash, xmarks_hover_line_dash_offset, xmarks_hover_line_join, xmarks_hover_line_width, xmarks_line_alpha, xmarks_line_cap, xmarks_line_color, xmarks_line_dash, xmarks_line_dash_offset, xmarks_line_join, xmarks_line_width, xmarks_muted, xmarks_muted_alpha, xmarks_muted_color, xmarks_muted_line_alpha, xmarks_muted_line_cap, xmarks_muted_line_color, xmarks_muted_line_dash, xmarks_muted_line_dash_offset, xmarks_muted_line_join, xmarks_muted_line_width, xmarks_nonselection_alpha, xmarks_nonselection_color, xmarks_nonselection_line_alpha, xmarks_nonselection_line_cap, xmarks_nonselection_line_color, xmarks_nonselection_line_dash, xmarks_nonselection_line_dash_offset, xmarks_nonselection_line_join, xmarks_nonselection_line_width, xmarks_selection_alpha, xmarks_selection_color, xmarks_selection_line_alpha, xmarks_selection_line_cap, xmarks_selection_line_color, xmarks_selection_line_dash, xmarks_selection_line_dash_offset, xmarks_selection_line_join, xmarks_selection_line_width, xmarks_visible, ymarks_alpha, ymarks_color, ymarks_hover_alpha, ymarks_hover_color, ymarks_hover_line_alpha, ymarks_hover_line_cap, ymarks_hover_line_color, ymarks_hover_line_dash, ymarks_hover_line_dash_offset, ymarks_hover_line_join, ymarks_hover_line_width, ymarks_line_alpha, ymarks_line_cap, ymarks_line_color, ymarks_line_dash, ymarks_line_dash_offset, ymarks_line_join, ymarks_line_width, ymarks_muted, ymarks_muted_alpha, ymarks_muted_color, ymarks_muted_line_alpha, ymarks_muted_line_cap, ymarks_muted_line_color, ymarks_muted_line_dash, ymarks_muted_line_dash_offset, ymarks_muted_line_join, ymarks_muted_line_width, ymarks_nonselection_alpha, ymarks_nonselection_color, ymarks_nonselection_line_alpha, ymarks_nonselection_line_cap, ymarks_nonselection_line_color, ymarks_nonselection_line_dash, ymarks_nonselection_line_dash_offset, ymarks_nonselection_line_join, ymarks_nonselection_line_width, ymarks_selection_alpha, ymarks_selection_color, ymarks_selection_line_alpha, ymarks_selection_line_cap, ymarks_selection_line_color, ymarks_selection_line_dash, ymarks_selection_line_dash_offset, ymarks_selection_line_join, ymarks_selection_line_width, ymarks_visible
alpha, annular_edgecolors, annular_linewidth, clims, cmap, ec, edgecolor, edgecolors, hatch, linestyles, linewidths, norm, shading, visible, xmarks_edgecolor, xmarks_linewidth, ymarks_edgecolor, ymarks_linewidth
Examples#
TBD