Histogram (Labs)

A histogram visualization node. The view can be accessed either via the “interactive view” action on the executed node or on KNIME WebPortal.
In the node configuration, you can choose the binning method and enable certain controls, which are then available in the view. This includes the ability to choose different columns for the dimension or the possibility to set a title. The configuration also offers a preview of the view, which should help to get the histogram fast in the desired shape. Missing values as well as NaN (not a number) or infinite values can be handled differently according to the configuration.

Note, this node is currently under development. Future versions of the node might have improved or changed functionality. Interactivity between multiple views is currently only possible with views also coming from this labs extension.

Options

Dimension

Select the column that contains the desired values.

Binning Type

Select the binning method used on the selected dimension.

No. bins

Number of bins to divide the data.

Enforce integer cutoffs

When checked, forces all cutoffs to the nearest integer.

Fix lower bound

When checked, it allows setting a lower bound.

Lower bound

Lower bound for the data.

Fix upper bound

When checked, it allows setting an upper bound.

Upper bound

Upper bound for the data.

Custom bin cutoffs

Input as comma-separated numbers e.g. '2,3.5,5'. First value is the fixed lower bound, last value is the fixed upper bound.

Special value handling

Select how to handle the special values such as missing values or filtered out values

Frequency axis shows

The data to show on the y axis.

Title

The title of the graph shown above the generated image. If left blank, no title will be shown.

Dimension axis label

The label used for the dimension axis. If left blank, no label will be shown.

Frequency axis label

The label for the y axis. If left blank, no label will be shown.

Show bar values

When checked, the values will be shown on top of each bar.

Enable image download

When checked, an image of the chart can be downloaded by clicking the image download button in the view.

Show tooltip

When checked, hovering over a bar will show information about the data.

Publish Selection

When checked, the view notifies other interactive views when the user changes the selection in the current view.

Subscribe to Selection

When checked, the view reacts on notifications from other interactive views that the selection has been changed.

Enable animation

When checked, the animation of the graph is active.

Views

Histogram (Labs)

A histogram visualization of the input data.

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