A TopBoxTornado plot is a concise way to present top-box scores
rate multiple items on Likert-type scales.
Market research surveys often ask respondents to rate multiple items
e.g. "How much do you agree with the following statements?".
The response scale may be 5-, 7-, 10- or 11-point scales.
An effective way to present the results is to look at top-box scores,
showing percentages for the top one, two or three scale items,
e.g. "Somewhat agree or Strongly agree".
Sometimes though the client also wants to know the bottom-box score too.
The tornado plot is a visually interesting way to show both top- and bottom-box.
The middle scale points (and any missing/NA values) are hidden in the middle.
## Export to PowerPoint
These also export to PowerPoint as native Office chart objects:
## Create a TopBoxTornado
To create a TopBoxTornado chart in Protobi, press the blue square edit icon for a group of rating questions and select Edit... .Then in the JSON, specify a `chartType` attribute:
{ "chartType": "TopBoxTornado" }The default is to show the bottom-two box scores on the left and the top-two box scores on the right, using the `format` attribute to identify the boxes and sorting them to identify top vs bottom. You can override the defaults by specifying a `chartOptions` attribute as well:
{ "chartType": "TopBoxTornado", "chartOptions": { "left": [1,2], "right": [4,5], "leftTitle": "Very strong or strong conflicts", "rightTitle": "Not very strong or no conflicts", "leftColor": "purple", "rightColor": "gold" }The `left` and `right` options specify one or more values to include. You can list one, two or more. If you don't list any Protobi assumes the first value from the `format` attribute. If no title is specified, the titles are inferred from the formatted values. The colors can be any CSS color, e.g. `"#39C"` or `"blue"`