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Overview

The Bar Plot node is a statistical-plot node in a Weave Workflow that displays selected fields as bars. The fields chosen in the Select Fields popup form the Y-axis series; the Y axis shows their values and the X axis shows the row positions, with one bar per field at each position. The node sits under the Statistics tab, distinct from the transformation nodes, and produces a visual output rather than a transformed table.

Configuration uses the multi-field selection popup (Select Fields for Y axis) rather than the X/Y axis dropdowns of the Line Plot and Scatter Plot nodes.

Note: “Workflow” is the in-UI term for what some Weave documentation calls a pipeline. This reference uses “Workflow.”

When to use it

  1. Comparing the values of one or more fields as bars.
  2. Plotting several fields side by side as grouped bars at each row position.
  3. Reviewing field magnitudes visually before further analysis.

Configuration

StepDescription
SelectOpens the Bar Plot popup listing the columns in the upstream data.
Select AllSelects every column in the popup.
Column checkboxesChoose the fields to plot on the Y axis; each becomes a bar series.
ApplyCommits the field selection.

Chart elements

ElementDescription
Y axisShows the values of the selected fields.
X axisShows the row positions where the columns are grouped.
Grouped barsOne bar per selected field at each X-axis position.
LegendIdentifies each selected field by name.

Key behaviors

Statistical-plot node. Bar Plot is found under the Statistics tab, separate from the transformation nodes, and outputs a visualization rather than a modified data table.

Field selection drives the Y axis. The selected fields become the bar series plotted on the Y axis; the X axis shows the row positions. This differs from Line Plot and Scatter Plot, which take an explicit X and Y column.

Grouped bars. When multiple fields are selected, their bars are drawn together at each X position, distinguished by the legend.