> For the complete documentation index, see [llms.txt](https://docs.videc.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.videc.de/june5-3.7/en/webanwendung/sichten/diagramme/haeufigkeitsdiagramm.md).

# Frequency Chart

The description for creating, deleting, and editing the Sankey diagram can be found in the chapter [Diagrams](/june5-3.7/en/webanwendung/sichten/diagramme.md).

## Setting Options for Measurement Variable

These settings are available via the auxiliary button of the respective measurement variable. The relevant measurement variables are listed in the list view under the heading *Selected*.

* Line

o Line Type

o Line Width

o Line Color

o Line Style

* Marker

o Marker Size

o Marker Type

* Y-Axis

o Position Axis on the Right

o Automatic Y-Axis Scaling

o Show Axis Labels

* Show Limit Values (upper, lower)
* Z-Index (Changes the order of measurement variables in the diagram - the higher the value, the closer to the viewer)
* Stacked
* Ignore Null Values
* Draw Maximum Area under Curve
* [Measurement Variable Exchange](/june5-3.7/en/webanwendung/sichten/messgroessenaustausch.md)

## Properties

These settings can be found in the [Properties window](/june5-3.7/en/webanwendung/sichten/oberflaeche-und-handling.md).

* Name
* Identification
* [Start Time](/june5-3.7/en/webanwendung/sichten/startzeit.md) (automatically with current timestamp, absolute or relative)
* Database
* Diagram Type

o Duration Line

o Frequency

o Cumulative Frequency

* Grouped Display of Duration Line
* Descending Display of Cumulative Frequency
* Class Width (for frequency or cumulative frequency)
* Different Class Widths (for frequency or cumulative frequency)
* Legend (Hide or Change Position: left, top, right, bottom)
* Widget Border Color (*only in Dashboard possible!*)
* Widget Border Width (*only in Dashboard possible!*)

## Ad Hoc Settings

These settings are located on the vertical toolbar. The vertical toolbar is positioned on the left side of the object. The buttons on the vertical toolbar are disabled when the Properties window is opened!

The vertical toolbar provides buttons for the following settings.

* Refresh *(loads newly occurred values from the data source).*
* Database *(opens a dialog in which the data source for all measurement variables can be changed. For example, it is possible to switch between daily or weekly data in the value display).*
* Set Time *(opens a modal window in which the time point/range can be adjusted).*
* Previous Time Interval
* Next Time Interval
* CSV Export (See chapter [Data Export as CSV](/june5-3.7/en/webanwendung/sichten/datenexport-als-csv.md))
* Current Control (Determines the function type of the mouse pointer. For example: Standard, Pan, or Zoom)
* Display (Determines the display of the object in combination with the value table)

## Display

The display of a frequency diagram is done via measurement variables. Select measurement variables from the object list (using the selection button or drag and drop) (See: [Selection and Deselection of Objects](/june5-3.7/en/webanwendung/listenansicht/an-und-abwahl-von-objekten.md)). A description with the information "measurement variable, timestamp, and absolute value" is displayed when the mouse pointer is held over a line.

{% hint style="info" %}

* Only measurement variables with numerical values can be inserted into a frequency diagram!
* If a measurement variable cannot be inserted into a frequency diagram, the values of the affected measurement variable will not be displayed in the table next to or below the frequency diagram.
  {% endhint %}


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