is_zeligei: Check if an object was created with ZeligEI
Description
Check if an object was created with ZeligEI
Usage
is_zeligei(
x,
msg = "Function is not relevant for ZeligEI objects.",
fail = TRUE
)
Arguments
msg
character string with the error message to return if
fail = TRUE
.
fail
logical whether to return an error if x
is not a timeseries.