This function can be used to create the loon objects from
a valid widget path name. The main difference from l_create_handle
is that
l_getFromPath
can take a loon compound widget path
but l_create_handle
cannot.
Examples
if (FALSE) { # \dontrun{
l_pairs(iris, showHistogram = TRUE)
# The path can be found at the top of tk title
# Suppose it is the first loon widget, this path should be ".l0.pairs"
p <- l_create_handle(".l0.pairs") # error
p <- l_getFromPath(".l0.pairs")
} # }