The
Filter to Select Markers for Computing the K Matrix
field is an optional parameter that
enables you to select
marker variables
to use for the calculation of the
K matrix
, based on
variables
in the
Annotation SAS Data Set
. By default, all marker variables that meet the
Filter to Include Markers
are used to compute the
K
matrix. The variable names used in this statement (for example,
chromosome
, Position) must exactly match those in the
annotation data set
.
Important
: You still must specify all variables that correspond to the markers in the entire annotation data set as
Marker Variables
.
For example, to filter only diseased individuals from a data set containing a mixed
population
of diseased (sick) and healthy (healthy) individuals (as indicated in a column named
DiseaseStatus
), you could use the following simple WHERE expression:
Note:
The word
where
has already been entered for you.
