Determine the Depth / Level of Nesting of a List
ldepth provides the depth of a list or list-like structure.
ldepth(l, DF.as.list = FALSE)
l |
a list. |
DF.as.list |
logical. |
The depth or level or nesting of a list or list-like structure (e.g. a classed object) is found by recursing down to the bottom of the list and adding an integer count of 1 for each level passed. For example the depth of a data frame is 1. If a data frame has list-columns, the depth is 2. However for reasons of efficiency, if l is not a data frame and DF.as.list = FALSE, data frames found inside l will not be checked for list column's but assumed to have a depth of 1.
A single integer indicating the depth of the list.
l <- list(1, 2) ldepth(l) l <- list(1, 2, mtcars) ldepth(l) ldepth(l, DF.as.list = FALSE) l <- list(1, 2, list(4, 5, list(6, mtcars))) ldepth(l) ldepth(l, DF.as.list = FALSE)
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.