Creates a classification ofexpressions. The bin width is determined by the number set asinterval. The result is shown as a<=x<b, where a and b are the upper and lower limits of the bin. The x can be replaced by an arbitrary string stated inlabel. 0 is normally the default starting point of the classification. This can be changed by adding anoffset.
class( var,10 )withvar= 23 returns'20<=x<30'
class( var,5,'value' )withvar= 23 returns'20<= value <25'