def getrsq(fitresult):
 if (hasattr(fitresult, 'resid') and hasattr(fitresult, 'model')):
  resid = fitresult.resid
  endog = fitresult.model.endog
  nobs = fitresult.nobs
 else:
  resid = fitresult[0]
  endog = fitresult[1]
  nobs = resid.shape[0]
 rss = np.dot(resid, resid)
 tss = (np.var(endog) * nobs)
 return ((1 - (rss / tss)), rss, tss, (tss - rss))

def getrsq ( fitresult ) : if ( hasattr ( fitresult , 'resid' ) and hasattr ( fitresult , 'model' ) ) : resid = fitresult . resid endog = fitresult . model . endog nobs = fitresult . nobs else : resid = fitresult [ 0 ] endog = fitresult [ 1 ] nobs = resid . shape [ 0 ] rss = np . dot ( resid , resid ) tss = ( np . var ( endog ) * nobs ) return ( ( 1 - ( rss / tss ) ) , rss , tss , ( tss - rss ) )
calculates rsquared residual .