getList {recommenderlab} | R Documentation |
List and Data.frame Representation for Recommender Matrix Objects
Description
Create a list or data.frame representation for various objects
used in recommenderlab. These functions are used in addition to
available coercion to allow for parameters like decode
.
Usage
getList(from, ...)
## S4 method for signature 'realRatingMatrix'
getList(from, decode = TRUE, ratings = TRUE, ...)
## S4 method for signature 'binaryRatingMatrix'
getList(from, decode = TRUE, ...)
## S4 method for signature 'topNList'
getList(from, decode = TRUE, ...)
getData.frame(from, ...)
## S4 method for signature 'ratingMatrix'
getData.frame(from, decode = TRUE, ratings = TRUE, ...)
Arguments
from |
object to be represented as a list. |
decode |
use item names or item IDs (column numbers) for items? |
ratings |
include ratings in the list or data.frame? |
... |
further arguments (currently unused). |
Details
Lists have one vector with items (and ratings) per user. The data.frame has one row per rating with the user in the first column, the item as the second and the rating as the third.
Value
Returns a list or a data.frame.
See Also
binaryRatingMatrix
,
realRatingMatrix
,
topNList
.
Examples
data(Jester5k)
getList(Jester5k[1,])
getData.frame(Jester5k[1,])
[Package recommenderlab version 1.0.6 Index]