Description Usage Arguments Value
apply_maps evaluates a mapping within a data frame to
calculate aesthetic values. apply_maps is intended to be
used in conjunction with ddply. If
each mapping returns a single value, apply_mapping will
return a single row of data. This provides a convenient
way to reduce a set of geoms, similar to using
summarise with ddply.
1  |   apply_maps(data, mapping, enclos = parent.frame())
 | 
data | 
 a data frame  | 
mapping | 
 an object of class uneval, usually the
output of   | 
enclos | 
 and environment  | 
a data frame
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