Combining two data frames of different lengths r


The functions cbind and rbind are S3 generic, with methods for data frames. Therefore there is no need for, e. Otherwise from the names of the arguments or where those are not supplied and deparse. If some of the arguments are of an S4 class, i. This was implicitly false before R version 3.

Old-style categories integer vectors with levels are promoted to factors. If it is identical, we proceed, otherwise we immediately drop through to the default code. This is intended to work with data frames with vector-like columns:

For cbind rbind the column row names are taken from the colnames rownames of the arguments if these are matrix-like. That restriction also applies to the result for bit platforms. For cbind rbindvectors of zero length including NULL are ignored unless the result would have zero rows columnsfor S compatibility. If the result is empty, logical is returned.

NULL arguments are ignored. So input vectors have the same length restriction: Each argument can either be a data frame, a list that could be a data frame, or a list of data frames.

These are generic functions with methods for other R classes. Any vectors have their values recycled or subsetted to achieve this length. If no names are found a numeric sequence is used instead. This is intended to work with data frames with vector-like columns: