statsmodels.stats.moment_helpers.se_cov¶

statsmodels.stats.moment_helpers.se_cov(cov)[source]¶

get standard deviation from covariance matrix

just a shorthand function np.sqrt(np.diag(cov))

Parameters:¶

covarray_like, square

covariance matrix

Returns:¶

stdndarray

standard deviation from diagonal of cov