fsbrain (version 0.1.0)

getIn: Retrieve values from nested named lists

Description

Retrieve values from nested named lists

Usage

getIn(named_list, listkeys)

Arguments

named_list

a named list

listkeys

vector of character strings, the nested names of the lists

Value

the value at the path through the lists, or NULL if no such path exists

Examples

# NOT RUN {
   data = list("regions"=list("frontal"=list("thickness"=2.3, "area"=2345)));
   getIn(data, c("regions", "frontal", "thickness"));       # 2.3
   getIn(data, c("regions", "frontal", "nosuchentry"));     # NULL
   getIn(data, c("regions", "nosuchregion", "thickness"));  # NULL

# }