Time chart

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

A time chart visual is a type of line graph. The first column of the query is the x-axis, and should be a datetime. Other numeric columns are y-axes. One string column values are used to group the numeric columns and create different lines in the chart. Other string columns are ignored. The time chart visual is like a line chart except the x-axis is always time.

Note

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

Syntax

T | render timechart [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).
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 multiple the visualization. For more information, see ysplit property.
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 (up to some limit).

Examples

Render a timechart

The following example renders a timechart with a title "Web app. traffic over a month, decomposing" that decomposes the data into baseline, seasonal, trend, and residual components.

let min_t = datetime(2017-01-05);
let max_t = datetime(2017-02-03 22:00);
let dt = 2h;
demo_make_series2
| make-series num=avg(num) on TimeStamp from min_t to max_t step dt by sid 
| where sid == 'TS1'   //  select a single time series for a cleaner visualization
| extend (baseline, seasonal, trend, residual) = series_decompose(num, -1, 'linefit')  //  decomposition of a set of time series to seasonal, trend, residual, and baseline (seasonal+trend)
| render timechart with(title='Web app. traffic over a month, decomposition')

Label a timechart

The following example renders a timechart that depicts crop damage grouped by week. The timechart x axis is labled "Date" and the y axis is labled "Crop damage."

StormEvents
| where StartTime between (datetime(2007-01-01) .. datetime(2007-12-31)) 
    and DamageCrops > 0
| summarize EventCount = count() by bin(StartTime, 7d)
| render timechart
    with (
    title="Crop damage over time",
    xtitle="Date",
    ytitle="Crop damage",
    legend=hidden
    )

View multiple y-axes

The following example renders daily hail events in the states of Texas, Nebraska, and Kansas. The visualization uses the ysplit property to render each state's events in separate panels for comparison.

StormEvents
| where State in ("TEXAS", "NEBRASKA", "KANSAS") and EventType == "Hail"
| summarize count() by State, bin(StartTime, 1d)
| render timechart with (ysplit=panels)

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