| ffdfrbind.fill {ffbase} | R Documentation |
rbind for ffdf where missing columns are added if not available in one of the ffdf objects.
Similarly as rbind.fill but for ffdf objects
ffdfrbind.fill(..., clone = TRUE)
... |
2 or more ffdf objects |
clone |
logical, indicating to clone the first ffdf object in ... or not before appending the other objects. Defaults to TRUE. |
an ffdf where the ffdf objects are rbind-ed together. Missing columns in either one of the passed ffdf objects are set to NA values.
x <- ffdfrbind.fill( as.ffdf(iris),
as.ffdf(iris[, c("Sepal.Length", "Sepal.Width"
, "Petal.Length")]))
class(x)
nrow(x)
sum(is.na(x$Petal.Width))