Set a random seed for generating widget element ids. Calling this function rather than relying on the default behavior ensures stable widget ids across sessions.
setWidgetIdSeed(seed, kind = NULL, normal.kind = NULL)a single value, interpreted as an integer, or NULL
(see ‘Details’).
character or NULL. If kind is a character
string, set R's RNG to the kind desired. Use "default" to
return to the R default. See ‘Details’ for the
interpretation of NULL.
character string or NULL. If it is a character
string, set the method of Normal generation. Use "default"
to return to the R default. NULL makes no change.