Produce a coincidence matrix from a crip set or fuzzy set data.
Usage
coincid(x, standardized = FALSE, use = c("complete", "pairwise"))
"print"(x, digits = 3, ...)
overlap(x, y)
Arguments
x
x is a dataframe of crip set or fuzzy set data, which ranges from
0 to 1.
y
y is a dataframe of crip set or fuzzy set data, which ranges from
0 to 1.
standardized
When TRUE, produce the standardized coincidence scores.
use
The method of handling missing data. "complete" means
listwise deletion and "pairwise" means pairwise deletion.
digits
a non-null value for 'digits' specifies the minimum
number of significant digits to be printed in values.
...
arguments passed to default method of print.
Value
A coincidence matrix.
Details
Coincidence measures the amount of overlap or coincidence between two sets or configurations. The formula is:
sum(pmin(x,y))/sum(pmax(x,y)). When standardized is TRUE, the formular is: sum(pmin(x,y))/min(sum(x),sum(y)).
References
Ragin, Charles C. 2006. "Set Relations in Social Research: Evaluating Their Consistency and Coverage." Political Analysis 14 (3) : 291-310