Bar Chart
A bar chart presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent.
For a bar chart we must define an rx.recharts.bar() component for each set of values we wish to plot. Each rx.recharts.bar() component has a data_key which clearly states which variable in our data we are tracking. In this simple example we plot uv as a bar against the name column which we set as the data_key in rx.recharts.x_axis.
Simple Example
Multiple Bars
Multiple bars can be placed on the same bar_chart, using multiple rx.recharts.bar() components.
Ranged Charts
You can also assign a range in the bar by assigning the data_key in the rx.recharts.bar to a list with two elements, i.e. here a range of two temperatures for each date.
Stateful Charts
Here is an example of a bar graph with a State. Here we have defined a function randomize_data, which randomly changes the data for both graphs when the first defined bar is clicked on using on_click=BarState.randomize_data.
ExpandCollapse
Example with Props
Here's an example demonstrates how to customize the appearance and layout of bars using the bar_category_gap, bar_gap, bar_size, and max_bar_size props. These props accept values in pixels to control the spacing and size of the bars.
Vertical Example
The layout prop allows you to set the orientation of the graph to be vertical or horizontal, it is set horizontally by default.
To learn how to use the sync_id, stack_id,x_axis_id and y_axis_id props check out the of the area chart documentation, where these props are all described with examples.
API Reference
rx.recharts.BarChart
A Bar chart component in Recharts.
Props
| Prop | Type | Description |
|---|---|---|
width | Union[int, str] | The width of chart container. String or Integer. |
height | Union[int, str] | The height of chart container. |
data | Sequence | The source data, in which each element is an object. |
margin | Dict[str, Any] | The sizes of whitespace around the chart, i.e. {"top": 50, "right": 30, "left": 20, "bottom": 5}. |
sync_id | str | If any two categorical charts(rx.line_chart, rx.area_chart, rx.bar_chart, rx.composed_chart) have the same sync_id, these two charts can sync the position GraphingTooltip, and the start_index, end_index of Brush. |
sync_method | "index""value" | When sync_id is provided, allows customisation of how the charts will synchronize GraphingTooltips and brushes. Using 'index' (default setting), other charts will reuse current datum's index within the data array. In cases where data does not have the same length, this might yield unexpected results. In that case use 'value' which will try to match other charts values, or a fully custom function which will receive tick, data as argument and should return an index. 'index' | 'value' | function. |
layout | "vertical""horizontal" | The layout of area in the chart. 'horizontal' | 'vertical'. |
stack_offset | "expand""none""wiggle""silhouette" | The type of offset function used to generate the lower and upper values in the series array. The four types are built-in offsets in d3-shape. |
bar_category_gap | Union[int, str] | The gap between two bar categories, which can be a percent value or a fixed value. Percentage | Number. |
bar_gap | Union[int, str] | The gap between two bars in the same category, which can be a percent value or a fixed value. Percentage | Number. |
bar_size | int | The width of all the bars in the chart. Number. |
max_bar_size | int | The maximum width of all the bars in a horizontal BarChart, or maximum height in a vertical BarChart. |
reverse_stack_order | bool | If false set, stacked items will be rendered left to right. If true set, stacked items will be rendered right to left. (Render direction affects SVG layering, not x position.). |
Valid Children
XAxisYAxisReferenceAreaReferenceDotReferenceLineBrushCartesianGridLegendGraphingTooltipBarDefsEvent Triggers
See the full list of default event triggersrx.recharts.Bar
A Bar component in Recharts.
Props
| Prop | Type | Description |
|---|---|---|
layout | "vertical""horizontal" | The layout of bar in the chart, usually inherited from parent. 'horizontal' | 'vertical'. |
data_key | Union[int, str] | The key of a group of data which should be unique in an area chart. |
x_axis_id | Union[int, str] | The id of x-axis which is corresponding to the data. |
y_axis_id | Union[int, str] | The id of y-axis which is corresponding to the data. |
legend_type | "circle""cross""diamond""line""plainline""rect""square""star""triangle""wye""none" | The type of icon in legend. If set to 'none', no legend item will be rendered. 'line' | 'plainline' | 'square' | 'rect'| 'circle' | 'cross' | 'diamond' | 'star' | 'triangle' | 'wye' | 'none' optional. |
label | Union[dict, bool] | If false set, labels will not be drawn. If true set, labels will be drawn which have the props calculated internally. |
is_animation_active | bool | If set false, animation of bar will be disabled. |
animation_begin | int | Specifies when the animation should begin, the unit of this option is ms. |
animation_duration | int | Specifies the duration of animation, the unit of this option is ms. |
animation_easing | "ease""ease-in""ease-out""ease-in-out""linear" | The type of easing function. |
unit | Union[int, str] | The unit of data. This option will be used in tooltip. |
name | Union[int, str] | The name of data. This option will be used in tooltip and legend to represent a bar. If no value was set to this option, the value of dataKey will be used alternatively. |
stroke | Union[str, Color] | The color of the line stroke. |
stroke_width | Union[str, int, float] | The width of the line stroke. |
fill | Union[str, Color] | The width of the line stroke. |
background | bool | If false set, background of bars will not be drawn. If true set, background of bars will be drawn which have the props calculated internally. |
stack_id | str | The stack id of bar, when two bars have the same value axis and same stack_id, then the two bars are stacked in order. |
min_point_size | int | The minimal height of a bar in a horizontal BarChart, or the minimal width of a bar in a vertical BarChart. By default, 0 values are not shown. To visualize a 0 (or close to zero) point, set the minimal point size to a pixel value like 3. In stacked bar charts, minPointSize might not be respected for tightly packed values. So we strongly recommend not using this prop in stacked BarCharts. |
bar_size | int | Size of the bar (if one bar_size is set then a bar_size must be set for all bars). |
max_bar_size | int | Max size of the bar. |
radius | Union[int, Sequence] | If set a value, the option is the radius of all the rounded corners. If set a array, the option are in turn the radiuses of top-left corner, top-right corner, bottom-right corner, bottom-left corner. |
Valid Children
CellLabelListErrorBar