A MAT chain can also be saved on disk as text file (by SAVEP, for
example) and activated by a MATRUN command.
For example,
MATRUN PCOMP,X,3
executes a PCOMP chain with parameters X (name of data matrix) and
3 (number of principal components). PCOMP refers here to a text file
PCOMP.MTX which by default is located in the <Survo>\U\M subdirectory of
Survo. In the PCOMP file notations %1,%2,... are used for parameters.
In the preceding example %1 will be replaced by X and %2 by 3.
You may get information on a particular MATRUN chain by activating
MATRUN PCOMP?
The INDEX field in the <Survo>\U\M subdirectory lists all standard MATRUN
chains. Many tasks related to multivariate statistical analysis and
linear models may be carried out by these MATRUN chains.
In many cases, programming of MAT chains is not anymore the best way to
make sequences of matrix operations.
The same tasks are accomplished simpler by sucros using MAT operations
(see SUCRO?)
M = More information on matrix operations
S = More information on multivariate statistical operations
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