R: Append a ff vector to another ff vector

ffappend {ffbase} | R Documentation

## Append a ff vector to another ff vector

### Description

Appends (`ff`) vector `y` to `ff` vector `x`. Please note that the data of `x` will be coerced to the type of `y` if `y` has a higher `vmode`.

### Usage

    ffappend(x, y, adjustvmode = TRUE, ...)

### Arguments

`x` | `ff` object where data will be appended to. If `x==NULL` a new `ff` object will be created
`y` | `ff` object or vector object
`adjustvmode` | logical, indicating to coerce x to a higher `vmode` to make sure y is appended without loss of information.
`...` | parameter that will be passed on to `chunk` interally

### Value

`ff` object with same physical storage as `x` unless `y` has a higher `vmode` in which case the data will be cloned to the higher `vmode`

### See Also

`c.ff`

[Package ffbase version 0.13.1 Index]