wstringapply: Apply a function on a window sliding on a string
Description
Apply a function on a window sliding on a string.
Usage
wstringapply(x, SIZE, SLIDE, FUN, ...)
Arguments
SIZE
The size of the window (number of characters).
SLIDE
offset to move at each slide
FUN
The function to be applied
...
optional parameter for the function FUN
Value
A list of size nchar(x) - SIZE.
Details
Apply the function FUN to substrings of x of length SIZE.