grades {SIN} | R Documentation |
The data consists of the test results of 220 boys in the 6 school subjects:
data(grades)
A list providing a summary of the data. The list contains:
grades$means | : | the mean vector, |
grades$stddev | : | the vector of standard deviations, |
grades$corr | : | the correlation matrix, and |
grades$n | : | the sample size. |
Whittaker, J. (1990) Graphical models in applied multivariate statistics. Chichester: Wiley. (See p.266).
data(grades) grades$means grades$stddev grades$corr grades$n