View source: R/sparse_random_projection.R
sparse_random_projection | R Documentation |
sparse_random_projection
reduces the dimensionality of a population
by projecting the original data with a sparse random matrix. Generally more
efficient and faster to compute than a Gaussian random projection matrix,
while providing similar embedding quality.
sparse_random_projection(population, variables, n_components)
population |
tbl with grouping (metadata) and observation variables. |
variables |
character vector specifying observation variables. |
n_components |
size of the projected feature space. |
Dimensionality reduced population
.
population <- tibble::tibble(
Metadata_Well = c("A01", "A02", "B01", "B02"),
AreaShape_Area_DNA = c(10, 12, 7, 7),
AreaShape_Length_DNA = c(2, 3, 1, 5),
Intensity_DNA = c(8, 20, 12, 32),
Texture_DNA = c(5, 2, 43, 13)
)
variables <- c("AreaShape_Area_DNA", "AreaShape_Length_DNA", "Intensity_DNA", "Texture_DNA")
sparse_random_projection(population, variables, 2)
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