An example, d <- data.frame(x1=rnorm(10), x2=rnorm(10), x3=rnorm(10)) cor(d) # get correlations (returns matrix). ... <看更多>

The base R cor() function provides a simple way to get Pearson correlations, but to get a correlation matrix as you might expect from SPSS or Stata it's ... ... <看更多>

You tend to use the covariance matrix when the variable scales are similar and the correlation matrix when variables are on different scales. ... <看更多>

corr.matrix calculates the correlation between all column pairs of a given data frame, and thresholds the resultant correlation matrix based ... ... <看更多>