Home components histogram

Histogram

histogram

	

		
		

<Histogram
    data={query_name} 
    x=column_x 
/>

Examples

Histogram

histogram

	

		
		

<Histogram 
    data={complaints_by_day_dept} 
    x=complaints 
    xAxisTitle="Daily Calls"
/>

Options

Data

data
REQUIRED
Query name, wrapped in curly braces
Options:
query name
x
REQUIRED
Column which contains the data you want to summarize
Options:
column name
emptySet
Sets behaviour for empty datasets. Can throw an error, a warning, or allow empty. When set to 'error', empty datasets will block builds in `build:strict`. Note this only applies to initial page load - empty datasets caused by input component changes (dropdowns, etc.) are allowed.
Options:
Default:
error
emptyMessage
Text to display when an empty dataset is received - only applies when `emptySet` is 'warn' or 'pass', or when the empty dataset is a result of an input component change (dropdowns, etc.).
Options:
string
Default:
No records

Formatting & Styling

xFmt
Format to use for x column (see available formats)
Options:
Excel-style format | built-in format name | custom format name
fillColor
Color to override default series color
Options:
CSS name | hexademical | RGB | HSL
fillOpacity
% of the full color that should be rendered, with remainder being transparent
Options:
number (0 to 1)
Default:
1
colorPalette
Array of custom colours to use for the chart. E.g., {['#cf0d06','#eb5752','#e88a87']}
Options:
array of color strings (CSS name | hexademical | RGB | HSL)
Default:
built-in color palette

Axes

xAxisTitle
Name to show under x-axis. If 'true', formatted column name is used. Only works with swapXY=false
Options:
Default:
false
yAxisTitle
Name to show beside y-axis. If 'true', formatted column name is used.
Options:
Default:
false
xGridlines
Turns on/off gridlines extending from x-axis tick marks (vertical lines when swapXY=false)
Options:
Default:
false
yGridlines
Turns on/off gridlines extending from y-axis tick marks (horizontal lines when swapXY=false)
Options:
Default:
true
xAxisLabels
Turns on/off value labels on the x-axis
Options:
Default:
true
yAxisLabels
Turns on/off value labels on the y-axis
Options:
Default:
true
xBaseline
Turns on/off thick axis line (line appears at y=0)
Options:
Default:
true
yBaseline
Turns on/off thick axis line (line appears directly alongside the y-axis labels)
Options:
Default:
false
xTickMarks
Turns on/off tick marks for each of the x-axis labels
Options:
Default:
false
yTickMarks
Turns on/off tick marks for each of the y-axis labels
Options:
Default:
false
yMin
Starting value for the y-axis
Options:
number
yMax
Maximum value for the y-axis
Options:
number

Chart

title
Chart title. Appears at top left of chart.
Options:
string
subtitle
Chart subtitle. Appears just under title.
Options:
string
legend
Turns legend on or off. Legend appears at top center of chart.
Options:
Default:
true for multiple series
chartAreaHeight
Minimum height of the chart area (excl. header and footer) in pixels. Adjusting the height affects all viewport sizes and may impact the mobile UX.
Options:
number
Default:
180
renderer
Which chart renderer type (canvas or SVG) to use. See ECharts' documentation on renderers.
Options:
Default:
canvas

Custom Echarts Options

echartsOptions
Custom Echarts options to override the default options. See reference page for available options.
Options:
{{exampleOption:'exampleValue'}}
seriesOptions
Custom Echarts options to override the default options for all series in the chart. This loops through the series to apply the settings rather than having to specify every series manually using `echartsOptions` See reference page for available options.
Options:
{{exampleSeriesOption:'exampleValue'}}
printEchartsConfig
Helper prop for custom chart development - inserts a code block with the current echarts config onto the page so you can see the options used and debug your custom options
Options:
Default:
false

Interactivity

connectGroup
Group name to connect this chart to other charts for synchronized tooltip hovering. Charts with the same `connectGroup` name will become connected

Annotations

Histograms can include annotations using the ReferenceLine and ReferenceArea components. These components are used within a chart component like so:

	

		
		

<Histogram data={sales_data} x=category>
  <ReferenceLine y=20/>
  <ReferenceArea xMin=3 xMax=8/>
</Histogram>