binaryClust | R Documentation |
Performs clustering of a matrix of 0s and 1s, ie. the censoring indicator columns for multiple variables. If there are multiple detection limits within a column first convert the 0/1 designated to be Below vs Above the highest detection limit in the column. Detection limits may differ among columns.
binaryClust(dat.frame, method = "ward.D2", group = NULL, ncluster = NULL)
dat.frame |
A data frame containing only the 0/1 columns, one column per chemical parameter. |
method |
Method of forming clusters. The default is |
group |
Optional grouping variable. If used, sites being clustered will be represented by their group name, rather than by the row number. |
ncluster |
Optional number of clusters to be differentiated on the graph. Clusters are fenced off with rectangles. |
Prints a cluster dendrogram based on clustering method
Helsel, D.R., 2011. Statistics for Censored Environmental Data using Minitab and R, 2nd ed. John Wiley & Sons, USA, N.J.
data(PbHeron)
# without group specified
binaryClust(PbHeron[,4:15])
# With Group argument
binaryClust(PbHeron[,4:15],group=PbHeron$DosageGroup)
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