cClass | R Documentation |
Column names of multilevel data sets are extracted according to
three classes: numeric
values, integer
sequences,
and factor
levels.
cClass(rd, cl = "all")
rd |
|
cl |
|
character
names.
Wilson Lara <wilarhen@gmail.com>, Felipe Bravo <fbravo@pvs.uva.es>
##Multilevel data frame of tree-ring widths: data(Prings05,envir = environment()) ## Names of variables in Prings05 data containing numeric classes: cClass(Prings05, 'numeric') # 'x' ## Names of variables containing time units: cClass(Prings05, 'integer') # 'year' ## Names of variables containing factors: cClass(Prings05, 'factor') # 'sample', 'tree', 'plot'
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