Correlation Coefficient

Source: R/correl.R

An exact correlation for ties or without ties. Methods of Kendall, Spearman and Pearson.

correl(x, y, method = "pearson", alternative = "two.sided")

Arguments

x

Vector
y

Vector
method

"pearson", "kendall", "spearman"
alternative

"two.sided", "less", "greater"

Value

The correlation of x,y vector with the statistical value and its probability

References

Numerical Recipes in C. Second Edition.

See also

correlation

Examples


library(agricolae)
data(soil)
with(soil,correl(pH,clay,method="kendall"))
#> $stat
#> [1] 3.31896
#> 
#> $rho
#> [1] 0.7105263
#> 
#> $pvalue
#> [1] 0.0009035325
#> 
with(soil,correl(pH,clay,method="spearman"))
#> $stat
#> [1] 5.402257
#> 
#> $rho
#> [1] 0.8522099
#> 
#> $pvalue
#> [1] 0.0002159178
#> 
with(soil,correl(pH,clay,method="pearson"))
#> $stat
#> [1] 4.655866
#> 
#> $rho
#> [1] 0.814477
#> 
#> $pvalue
#> [1] 0.0006983906
#>