mfmapl

Computes an intuitively nice marker ordering using 2-points LOD.

Synopsis:

The mfmapl command is invoked as either one of :

• mfmapl Options
• mfmapl

Description:

The mfmapl command builds gradually a map by inserting the best (whose LOD criteria are minima) available pairs of markers among the current list of active markers. This ``Greedy'' heuristic applies a multi-fragment (mf) strategy: several order fragments of markers which are close together are constructed and then linked together.

Warning: since 2-points estimations are typically unavailable for some pairs of markers when data-sets are merged, this command will return very poor maps on such merged data. This command should especially not be used when two data-sets have been merged with separate parameters estimation (using mergor).

Arguments:

• Options : -u to obtain the synopsys of the normal use, -h to print a one line description, -H to print a short help.

Returns:

nothing.

Example:

CG> dsload Data/bc.cg
{1 f2 backcross 20 208 /homes/thomas/carthagene/test/Data/bc.cg}
CG> mfmapl

Map -1 : log10-likelihood =  -354.66
-------:
 Set : Marker List ...
   1 : MS10 MS5 MS6 MS1 MS2 MS3 MS4 MS7 MS8 MS9 MS12 MS15 MS16 MS13 MS11 MS14\
 MS17 MS18 MS19 MS20

See also:

• mfmapd (2.5.7)
• nicemapl (2.5.4)
• nicemapd (2.5.5)
• sem (2.5.2)