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This Mod for Spotfire® can be used to visualize multivariate data in the form of a two-dimensional chart with an arbitrary number of quantitative variables represented on axes starting from the same point. It is useful to compare multiple categories or groups of values over common variables in a single diagram to reveal distinct correlations, trade-offs, and a multitude of other comparative measures.

Spider charts (also called radar charts, web charts, start chart, star plot, cobweb charts) have many use cases in different sectors like marketing, analysis, sales, research, education, and more.

Installation

Opening the visualization in Spotfire® Analyst

1. From this repository Releases section, locate and download the .mod file.
2. Drag the .mod file into an analysis in Spotfire® Analyst.

For information on how to use and share visualizations mods, read the Spotfire® documentation.

Running the project in Spotfire®

1. From this repository Releases section, locate and download the source code.
2. Build the project in your preferred code editor. Microsoft Visual Studio Code is highly recommended.
3. Open an analysis in Spotfire® and select Tools > Development > Create visualization mod from the menubar to connect to the project.

For information on how to get started with visualization mod development, read the Spotfire® documentation.

Data Requirement

Every mod handles missing, corrupted and/or inconsistent data in different ways. It is advised to always review how the data is visualized.

To make the spider chart mod work properly, the underlying data must be formatted in a certain way. A data table with at least four columns is required. One column should contain groups or categories, for example, names of people or objects. Others columns should contain the contribution for each point, one column per series to be plotted.

Setup

In this example dataset, we have five columns: Fiscal Year, Quarter 1, Quarter 2, Quarter 3 and Quarter 4

FY	Q1	Q2	Q3	Q4
2010	780	1045	865	745
2011	1900	492	1344	931
2012	1205	600	1340	1244
2013	985	1091	540	1252
2014	453	1304	990	525
2015	1482	455	935	970
2016	835	590	1037	864
2017	575	455	790	625
2018	1327	791	955	631
2019	1175	1208	1201	745
2020	1618	743	988	820

In the spider chart configuration in Spotfire, we would specify the 'FY' column from the data table above as our X-axis and each other column as Y-axis. Then we configure Color-by to (Column Names).

Configuration

Once the spider chart is configured and has data provided, you can alter the rendering of the visualization live. Click on a X-axis label to access the settings.

Curve type

• Rounded: Connect data points by smooth curves.
• Linear: Connect data points by straight line segments.

Rotate X-axis labels

Rotate X-axis labels to follow the direction of the axis line.

Normalize Y-axis values

Prevent extreme values to distort/crowd the other values.

Color fill

Add background coloring for each category with transparency so that all categories can be seen.

Usage

The spider chart mod supports marking data and filtering data. Clicking on a marker will mark it. Clicking on a line will mark it. Clicking in an empty space will clear the marking.