cosine_similarity | R Documentation |
Cosine similarity/distance between two vectors.
cosine_similarity(v1, v2, distance = FALSE)
cos_sim(v1, v2)
cos_dist(v1, v2)
v1 , v2 |
Numeric vector (of the same length). |
distance |
Compute cosine distance instead?
Defaults to |
Cosine similarity =
sum(v1 * v2) / ( sqrt(sum(v1^2)) * sqrt(sum(v2^2)) )
Cosine distance =
1 - cosine_similarity(v1, v2)
A value of cosine similarity/distance.
pair_similarity
tab_similarity
most_similar
cos_sim(v1=c(1,1,1), v2=c(2,2,2)) # 1
cos_sim(v1=c(1,4,1), v2=c(4,1,1)) # 0.5
cos_sim(v1=c(1,1,0), v2=c(0,0,1)) # 0
cos_dist(v1=c(1,1,1), v2=c(2,2,2)) # 0
cos_dist(v1=c(1,4,1), v2=c(4,1,1)) # 0.5
cos_dist(v1=c(1,1,0), v2=c(0,0,1)) # 1
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