pubmed.mineR (version 1.0.11)

cos_sim_calc: To calculate the cosine similarity between terms.

Description

cos_sim_calc calculates the cosine measure of similarity between pairs of terms from corpus.

Usage

cos_sim_calc(nummatrix)

Arguments

nummatrix

A numerical matrix for e.g. a Term Document matrix (output from tdm_for_lsa)

Value

An R object and a tab delimited text file containing the similarity values between all pairs of terms.

Details

The term document matrix is taken as input and cosine meausures of similarity between all pairs of terms are calculated.

References

https://en.wikipedia.org/wiki/Cosine_similarity

See Also

tdm_for_lsa

Examples

# NOT RUN {
x = cos_sim_calc(nummatrix)
# }
# NOT RUN {
## here nummatrix is the 'Term Document Matrix' generated from tdm_for_lsa()
# }