cosine: Similarity calculation Function

In CFilt: Recommendation by Collaborative Filtering

Similarity calculation Function

Description

Functions that returns the cosine similarity between two items or users.

Usage

cosine(CF, type, i, j)

Arguments

CF	A CF objec
type	"user" or "item"
i	"user" or "item" Id or index
j	"user" or "item" Id or index#'

Author(s)

Jessica Kubrusly

Examples

objectCF_r <- CFbuilder(Data = movies[1:500,], Datatype = "ratings", 
similarity = "cosine")
cosine(CF=objectCF_r,type = "user",i="1",j="2")
cosine(CF=objectCF_r,type = "item",i="Her",j="Frozen")

CFilt documentation built on Oct. 4, 2024, 5:10 p.m.