Description Usage Arguments Note Author(s) References See Also Examples
Displays a graphical matrix of log10 scaled x-y plots in the upper triangle and boxplots of the ilr transforms in the lower triangle for the parts of a compositional matrix. The robust ilr stability (Filzmoser et al., 2010) for each x-y pair is displayed as the boxplot title.
1 | gx.pairs4parts(xx, cex = 2, ifwarn = TRUE, ...)
|
xx |
a matrix, or sub-matrix, of parts from a compositional data set. |
cex |
by default the size of the text of the variable names in the diagonal of the graphical matrix. By default |
ifwarn |
by default |
... |
further arguments to be passed to plot or bxplot. For example, the size of the axis scale annotation can be change by setting |
Any less than detection limit values represented by negative values, or zeros or other numeric codes representing blanks in the data, must be removed prior to executing this function, see ltdl.fix.df
.
Any data vectors (rows) containing NA
s are removed prior to computation.
Robert G. Garrett
Filzmoser, P, Hron, K. and Reimann, C., 2010. The bivariate statistical analysis of environmental (compositional) data. Science of the Total Environment, 408(19):4230-4238.
ltdl.fix.df
, remove.na
, bxplot
, ilr.stab
1 2 3 4 5 6 7 |
## Make test data available
data(sind.mat2open)
## Display 'pairs' plots for a set, or sub-set, of parts of a
## compositional data matrix
gx.pairs4parts(sind.mat2open)
|
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