Table 4. Intensity statistics of 1upp .

Only the L test indicates that the data might be twinned.

Statistic	Observed	Theory (untwinned)	Theory (perfect twin)
〈I2〉/〈I〉2	2.09	2	1.5
〈F〉2/〈F2〉	0.80	0.785	0.885
〈|E2 − 1|〉	0.731	0.736	0.541
〈L〉	0.43	0.50	0.375