Area chart

Applies to: ✅ Microsoft Fabric ✅ Azure Data Explorer ✅ Azure Monitor ✅ Microsoft Sentinel

The area chart visual shows a time-series relationship. The first column of the query should be numeric and is used as the x-axis. Other numeric columns are the y-axes. Unlike line charts, area charts also visually represent volume. Area charts are ideal for indicating the change among different datasets.

Note

This visualization can only be used in the context of the render operator.

Syntax

T | render areachart [with (propertyName = propertyValue [, ...])]

Learn more about syntax conventions.

Parameters

Name	Type	Required	Description
T	string	✔️	Input table name.
propertyName, propertyValue	string		A comma-separated list of key-value property pairs. See supported properties.

Supported properties

All properties are optional.

PropertyName	PropertyValue
accumulate	Whether the value of each measure gets added to all its predecessors. (true or false)
kind	Further elaboration of the visualization kind. For more information, see kind property.
legend	Whether to display a legend or not (visible or hidden).
series	Comma-delimited list of columns whose combined per-record values define the series that record belongs to.
ymin	The minimum value to be displayed on Y-axis.
ymax	The maximum value to be displayed on Y-axis.
title	The title of the visualization (of type string).
xaxis	How to scale the x-axis (linear or log).
xcolumn	Which column in the result is used for the x-axis.
xtitle	The title of the x-axis (of type string).
yaxis	How to scale the y-axis (linear or log).
ycolumns	Comma-delimited list of columns that consist of the values provided per value of the x column.
ysplit	How to split the y-axis values for multiple visualizations.
ytitle	The title of the y-axis (of type string).

ysplit property

This visualization supports splitting into multiple y-axis values:

ysplit	Description
none	A single y-axis is displayed for all series data. (Default)
axes	A single chart is displayed with multiple y-axes (one per series).
panels	One chart is rendered for each ycolumn value. Maximum five panels.

kind property

This visualization can be further elaborated by providing the kind property. The supported values of this property are:

kind value	Description
default	Each "area" stands on its own.
unstacked	Same as default.
stacked	Stack "areas" to the right.
stacked100	Stack "areas" to the right and stretch each one to the same width as the others.

Examples

The example in this section shows how to use the syntax to help you get started.

The examples in this article use publicly available tables, such as the StormEvents table in the Weather analytics sample data.

Simple area chart

The following example shows a basic area chart visualization.

demo_series3
| render areachart

Area chart using properties

The following example shows an area chart using multiple property settings.

OccupancyDetection
| summarize avg_temp= avg(Temperature), avg_humidity= avg(Humidity) by bin(Timestamp, 1h)
| render areachart
    with ( 
        kind = unstacked,
        legend = visible,
        ytitle ="Sample value",
        ymin = 10,
        ymax =100,
        xtitle = "Time",    
        title ="Humidity and temperature"
    )

Area chart using split panels

The following example shows an area chart using split panels. In this example, the ysplit property is set to panels.

StormEvents
| where State in ("TEXAS", "NEBRASKA", "KANSAS") and EventType == "Hail"
| summarize count=count() by State, bin(StartTime, 1d)
| render areachart
    with (
        ysplit= panels,
        legend = visible,
        ycolumns=count,
        yaxis =log,
        ytitle ="Count",
        ymin = 0,
        ymax =100,
        xaxis = linear,
        xcolumn = StartTime,
        xtitle = "Date",    
        title ="Hail events"
    )