c,missingOrNULL-method | R Documentation |
c Method for NULL values
c Method for NULL values
## S4 method for signature 'missingOrNULL'
c(x = "missingORNULL", y)
## S4 method for signature 'missingOrNULL'
c(x = "missingORNULL", y)
x |
NULL object |
y |
sites/datasets object |
concatenated collunits
object
list
of concatenated items when the first object is NULL
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