ReferenceGroups-class {nexus} | R Documentation |
Grouped Data
Description
A virtual S4 class to represent reference groups.
Usage
is_grouped(object)
Arguments
object |
A |
Slots
group_indices
An
integer
vector to store the group that each value belongs to.group_levels
A
character
vector to store the values of the grouping variables.group_ordered
A
logical
scalar to determine if the levels should be regarded as ordered (in the order given).
Author(s)
N. Frerebeau
See Also
Other classes:
CompositionMatrix-class
,
GroupedComposition-class
,
GroupedLogRatio-class
,
LogRatio-class
,
NumericMatrix-class
,
OutlierIndex-class
Examples
## Data from Aitchison 1986
data("hongite")
## Coerce to compositional data
coda <- as_composition(hongite)
## codaccess
dim(coda) # Get the matrix dimensions
row(coda) # Get the row indexes
col(coda, as.factor = TRUE) # Get the column indexes
nrow(coda) # Get the number of rows
ncol(coda) # Get the number of columns
dimnames(coda) # Get the dimension names
rownames(coda) <- LETTERS[1:25] # Set the row names
rownames(coda) # Get the rownames
colnames(coda) <- letters[21:25] # Set the column names
colnames(coda) # Get the column names
[Package nexus version 0.6.0 Index]