| groupsByLabel {GCDkit} | R Documentation | 
Grouping the data according to the levels of a single label.
groupsByLabel(lab=NULL)
| lab | name or sequence number of the label | 
Sets the groups on the selected column within the data frame 'labels'.
If not specified at the function call, the appropriate label is selected 
by the function 'selectColumnLabel'. 
| groups | character vector: the grouping information | 
| grouping | the sequence number of the column in the data frame ' | 
Vojtěch Janoušek, vojtech.janousek@geology.cz
    sampleDataset("sazava")
    groupsByLabel("Intrusion")