distance: Distance measures (between constructs or elements).

In OpenRepGrid: Tools to analyse repertory grid data

Description

Distance measures (between constructs or elements). Various distance measures between elements or constructs are calculated.

Usage

distance(x, along=1, dmethod="euclidean", p=2, trim=20, index=TRUE,
    col.index=FALSE, digits=2, output=1, upper=T, ...)

Arguments

x	repgrid object.
along	Whether to calculate distance for 1 = constructs (default) or for 2= elements.
dmethod	The distance measure to be used. This must be one of "euclidean", "maximum", "manhattan", "canberra", "binary" or "minkowski". Any unambiguous substring can be given. For additional information on the different types type ?dist.
p	The power of the Minkowski distance, in case "minkowski" is used as argument for dmethod.
trim	The number of characters a construct is trimmed to (default is 20). If NA no trimming occurs. Trimming simply saves space when displaying correlation of constructs with long names.
index	Whether to print the number of the construct (default is TRUE).
col.index	Logical. Whether to add an extra index column so the column names are indexes instead of construct names. This option renders a neater output as long construct names will stretch the output (default is FALSE).
digits	Numeric. Number of digits to round to (default is 2).
output	The type of output printed to the console. output=0 will supress printing of the output.
upper	Whether to display upper triangle of correlation matrix only (default is TRUE).
...	Additional parameters to be passed to function dist. Type dist for further information.

Value

matrix object.

Author(s)

Mark Heckmann

Examples

## Not run: 

# between constructs
distance(bell2010, along=1)
# between elements
distance(bell2010, along=2)

# several distance methods
distance(bell2010, dm="man")         # manhattan distance
distance(bell2010, dm="mink", p=3)   # minkowski metric to the power of 3

# to save the results without printing to the console
d <- distance(bell2010, out=0, trim=7)
d


## End(Not run)

OpenRepGrid documentation built on May 2, 2019, 4:54 p.m.