Convert Distance to Similarity for Matrix Objects — dist_to_sim.Matrix • adjoin

Convert distance values in a sparse Matrix to similarity values.

Usage

# S3 method for class 'Matrix'
dist_to_sim(
  x,
  method = c("heat", "binary", "normalized", "cosine", "correlation"),
  sigma = 1,
  len = 1,
  ...
)

Arguments

x: A Matrix object containing distances.
method: The transformation method for converting distances to similarities.
sigma: The bandwidth parameter for the heat kernel method.
len: The length parameter used in transformation calculations.
...: Additional arguments (currently ignored).

Value

The Matrix object with distances converted to similarities.

Examples

m <- Matrix::Matrix(c(0,1,2,0), nrow=2, sparse=TRUE)
dist_to_sim(m, method="heat", sigma=1)
#> 2 x 2 sparse Matrix of class "dgCMatrix"
#>                         
#> [1,] .         0.1353353
#> [2,] 0.6065307 .