Sib-pair Command: segregation


ClassAnalysis
Namesegregation
Arguments <marker> [unphased]

Generates tabulation of parental versus offspring genotypes for a codominant marker. Of use in checking quality of a marker, segregation distortion or parent of origin effects. If the unphased modifier was included, the offspring genotypes are not phased.

For hypothesis testing, try the schaid and tdt commands.

Example:

>> seg ldl
------------------------------------------------
Segregation data for marker "ldl"
------------------------------------------------
NOTE:  Phased genotypes inferred for offspring

  Pat     Mat        1/1     1/2     2/1     2/2  
------- -------    ------- ------- ------- -------
  1/1     1/1         0       0       0       0
  1/1     1/2         3       0       0       0
  1/1     2/2         0       0       3       0
  1/2     1/1         6       3       0       0
  1/2     1/2         0       0       0       0
  1/2     2/2         0       0       0       0
  2/2     1/1         0       0       0       0
  2/2     1/2         0       0       0       0
  2/2     2/2         0       0       0       0

See also:

schaid Schaid & Sommer HWE test
tdt several TDTs


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