For the first chart in Attribute Gauge Chart that plots all X, Grouping variables on the xaxis, the percent Agreement is calculated as follows:
For the second chart in Attribute Gauge Chart that plots all Y, Response variables on the xaxis, the percent Agreement is calculated as follows:
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n = number of subjects (grouping variables)

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m = number of raters

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k = number of levels

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Ni = m x ri. Number of ratings on subject i (i = 1,...,n). This includes responses for all raters, and repeat ratings on a part. For example, if subject i is measured 3 times by each of 3 raters, then Ni is 3 x 3 = 9.
