. help corr


Correlations (covariances) of variables or estimators

        correlate [varlist] [weight] [if exp] [in range] [, means noformat covariance _coef wrap ]

        pwcorr    [varlist] [weight] [if exp] [in range] [, obs sig print(#) star(#) bonferroni sidak ]

Description

    correlate without the _coef option displays the correlation or covariance matrix for varlist or, if varlist is not specified, for all variable   in the data.  Observations are excluded from the calculation due to missing values on a casewise basis.

    correlate with the _coef option displays the correlation or covariance matrix of the coefficients from the most recently fitted model.  varlist    is not specified in this case.

heiehei.学习了

谢谢了，呵呵

stata的help很有用