BIOdry (version 0.3)

colclass: Column classes

Description

Column names in multilevel data frames are grouped into classes according to three level types: numeric, temporal, or factor.

Usage

colclass(rd, as.list = TRUE)

Arguments

rd

data.frame object with factor-level columns.

as.list

logical. List the classes. If TRUE then column names in data are grouped in the form of a list.

Value

vector of the column names, or list of grouped column names.

Examples

##Multilevel data frame of tree-ring widths:
data(Prings05,envir = environment())
## getting grouped column names    
classes <- colclass(Prings05)
str(classes)