pcor | R Documentation |
Computes the partial correlation between two variables given a set of other variables.
pcor(u, S)
u |
a vector of integers of length > 1. The first two integers are the indices of variables the correlation of which must be computed. The rest of the vector is the conditioning set. |
S |
a symmetric positive definite matrix, a sample covariance matrix. |
a scalar, the partial correlation matrix between variables u[1]
and u[2]
given u[-c(1,2)]
.
Giovanni M. Marchetti
cor
, parcor
, correlations
data(marks)
## The correlation between vectors and algebra given analysis and statistics
pcor(c("vectors", "algebra", "analysis", "statistics"), var(marks))
## The same
pcor(c(2,3,4,5), var(marks))
## The correlation between vectors and algebra given statistics
pcor(c("vectors", "algebra", "statistics"), var(marks))
## The marginal correlation between analysis and statistics
pcor(c("analysis","statistics"), var(marks))
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