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class - script and chart function

The class function assigns the first parameter to a class interval. The result is a dual value with a<=x<b as the textual value, where a and b are the upper and lower limits of the bin, and the lower bound as numeric value.


class(expression, interval [ , label [ , offset ]])


Argument Description
interval A number that specifies the bin width.
label An arbitrary string that can replace the 'x' in the result text.
offset A number that can be used as offset from the default starting point of the classification. The default starting point is normally 0.


Example Result
class( var,10 ) with var = 23 returns '20<=x<30'
class( var,5,'value' ) with var = 23 returns '20<= value <25'
class( var,10,'x',5 ) with var = 23 returns '15<=x<25'

Example - Load script using class

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