Sib-pair Command: davie


ClassAnalysis and data manipulation command
Namedavie
Arguments <binary trait> [<proband indicator>]

Print segregation ratios and standard errors for a binary trait, adjusted for the ascertainment scheme. Probands are indicated by being affected at the proband indicator "locus". If no proband indicator variable is given, complete ascertainment is assumed (equivalent to "davie trait trait").

Example:

Recurrence risk of cystic fibrosis: Example 2.3 in Lange (1997).

>> davie cf proband
---------------------------------------------------
Corrected segregation ratios for trait "cf"
---------------------------------------------------
NOTE:  Proband defined by "proband".

Mating Type   UxU      UxA      AxA     All
-----------------------------------------------
   Matings        80        0        0       80
   Aff/Tot  124/ 269   0/   0   0/   0 124/ 269
   Risk        0.268    0.000    0.000    0.268
   Std Err     0.035    0.000    0.000    0.035



<< (share)Up to index>> (twin)