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Coerce to Features

Source: R/AllGenerics.R, R/coerce.R
as_features.Rd

Converts an object to a collection of features.

Usage

as_features(from, ...)

# S4 method for CompositionMatrix
as_features(from)

# S4 method for LogRatio
as_features(from)

Arguments

from

A CompositionMatrix object.

...

Currently not used.

Value

A data.frame with all informations as extra columns.

See also

Other compositional data tools: as_amounts(), as_composition()

Author

N. Frerebeau

Examples

## Create a count matrix
A1 <- matrix(data = sample(1:100, 100, TRUE), nrow = 20)

## Coerce to compositions
B <- as_composition(A1)

## Row sums are internally stored before coercing to relative frequencies
get_totals(B)
#>  [1] 223 260 276 253 249 312 138 264 271 205 146 176 312 246 297 234 401 136 281
#> [20] 367

## This allows to restore the source data
A2 <- as_amounts(B)

## Coerce to a data.frame
X <- data.frame(B)
head(X)
#>           V1         V2        V3         V4         V5
#> S1 0.3183857 0.04484305 0.1793722 0.14798206 0.30941704
#> S2 0.3153846 0.16538462 0.3615385 0.11153846 0.04615385
#> S3 0.0942029 0.34420290 0.3115942 0.09057971 0.15942029
#> S4 0.2529644 0.23715415 0.2845850 0.13438735 0.09090909
#> S5 0.1325301 0.25301205 0.0562249 0.34939759 0.20883534
#> S6 0.2884615 0.18589744 0.2147436 0.24679487 0.06410256