Histogram

Histogram visualization supports time series and any table results with one or more numerical fields.

Display options

Use the following options to refine your visualization.

The size of the buckets. Leave this empty for automatic bucket sizing (~10% of the full range).

Bucket offset

If the first bucket should not start at zero. A non-zero offset has the effect of shifting the aggregation window. For example, 5-sized buckets that are 0-5, 5-10, 10-15 with a default 0 offset would become 2-7, 7-12, 12-17 with an offset of 2; offsets of 0, 5, or 10, in this case, would effectively do nothing. Typically, this option would be used with an explicitly defined bucket size rather than automatic. For this setting to affect, the offset amount should be greater than 0 and less than the bucket size; values outside this range will have the same effect as values within this range.

Combine series

Controls line width of the bars.

Fill opacity

Controls the fill opacity bars.

Gradient mode

Set the mode of the gradient fill. Fill gradient is based on the line color. To change the color, use the standard field option.

Gradient display is influenced by the Fill opacity setting.

None

No gradient fill. This is the default setting.

Opacity

Hue

Gradient color is generated based on the hue of the line color.

When you hover your cursor over the visualization, Grafana can display tooltips. Choose how tooltips behave.

All - The hover tooltip shows all series in the visualization. Grafana highlights the series that you are hovering over in bold in the series list in the tooltip.
Hidden - Do not display the tooltip when you interact with the visualization.

Legend mode

Use these settings to refine how the legend appears in your visualization.

List - Displays the legend as a list. This is a default display mode of the legend.
Table - Displays the legend as a table.
Hidden - Hides the legend.

Legend placement

Choose where to display the legend.

Bottom - Below the graph.
Right - To the right of the graph.