Radar View (Omniscope 2.8+)

May 14, 2013 8:36AM

The newly-introduced Radar View allows you to create radar plots.

The radar plot, also referred to as 'spider plot' or 'star plot', can be very effective in visualisation of multivariate data.

Radar View has 2 main ways to present your data:

Standard radial layout

Classic way of plotting values of each category along a separate axis/spoke laying them out in a radial style.
Parallel coordinates

It lays out parallel axes and plots the data elements across several dimensions.
Each dimension corresponds to one vertical axis, and the data elements are displayed as series of connected points along the axes.

Currently 4 different presets allow you to switch between the different styles and layout settings:

Lines: in radial layout paints polygon lines only
Lines and Fills: in radial layout paints lines and filled polygons
Fills: in radial layout paints filled polygons
Parallel Coordinates: in vertical layout paints lines

Regarding scale options you can switch between:

Vertical Common: A scale will be displayed on the vertical axis, all measures will be proportional to each other.
Hidden: Same as Vertical Common but no scale will be displayed
Independent: No scale will be displayed. All measures will be normalised independently.

To fully customise your Radar view, you can play with the following style/layout options:

From the Style drop-down menu:
- Show: Markers, Lines, Fills
- Line opacity
- Line thickness
- Fill opacity
From the Spoke drop-down menu:
- Colour spokes
- Show range label on spokes
- Pad spokes at center
- Spokes transparency
- Spokes thickness
- Spokes layout

Here are some common use cases, where the Radar view is the perfect data visualisation plot:

1) Comparing predicted vs actual data:

2) Presenting hourly data:

3) Observe distribution of data across different dimensions (multivariate data) with parallel coordinates layout:

4) Displaying tiles of different "shapes", to visually compare different products/campaigns/individuals

Mees · August 29, 2013 8:14AM

HI there,
We are trying to use the Radar view but have some difficulties with it.
All spokes are scaled the same. So if one spoke has values of 1000 and another has only 10, the one with 10 is very small. Above we read about the option "Independent scaling" and believe this is what we need. However, it is not part of the menu in 2.8 b1088. Can you please let us know how we can do this?

Thanks

August 29, 2013 8:26AM

I have checked the same build and on my side I can see the "Independent scaling" option selected and present as default.
Can you send us your file to help you out?

Mees · August 29, 2013 8:31AM

thanks for your quick reaction. will send it per email. Is that okay?

August 29, 2013 8:31AM

yes please

Mees · August 29, 2013 8:49AM

have sent you the file

August 29, 2013 10:21AM

The Scale settings refer to the measures (so not directly to the spokes) to be normalised independently or to be proportional to each other

If your file has only 1 measure and you "Spoke by" measure, then all the spokes will be proportional to each other (on the same scale).
Since there is only 1 measure the option "Scale: Independent" is not visible in the menu (the default will be "Hidden").
If you add another measure then it will be available in the menu (and chosen as default).

To obtain independent panes or layers users can play with the "Normalise panes" and "Normalise layers" view toolbar options.

	radar comparing predicted vs actual.png	62K
	radarTiles.png	76K
	Parallel coordinates.png	253K
	radar hour displaced data.png	167K
	radarParallel.png	368K
	radarParallelBrushing.png	316K

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