Describes an object.
Usage
# S4 method for class 'CompositionMatrix'
describe(x)
# S4 method for class 'GroupedComposition'
describe(x)
Arguments
- x
A
CompositionMatrix
object.
Examples
## Data from Aitchison 1986
data("slides")
## Coerce to compositional data
coda <- as_composition(slides)
## Quick description
describe(coda)
#> 25 compositions:
#> * 7 parts: “quartz”, “microcline”, “plagioclass”, “biotite”, “muscovite”, “opaques”, “nonopaques”.
#>
#> 0 missing values:
#> * 0 observations (0%) contain missing values.
#> * 0 variables (0%) contain missing values.
#>
#> Data checking:
#> * 0% of numeric values are zero.
#> * 0 variables with no variance.
## Group
coda <- group(coda, by = slides$slide)
describe(coda)
#> 25 compositions:
#> * 7 parts: “quartz”, “microcline”, “plagioclass”, “biotite”, “muscovite”, “opaques”, “nonopaques”.
#> * 5 groups: “A”, “B”, “C”, “D”, “E”.
#> * 0 unassigned samples.
#>
#> 0 missing values:
#> * 0 observations (0%) contain missing values.
#> * 0 variables (0%) contain missing values.
#>
#> Data checking:
#> * 0% of numeric values are zero.
#> * 0 variables with no variance.