READ_ALIGN is a FORTRAN90 program which reads a file containing information about a multiple sequence alignment, and writes out the relevant information to another file using the PIR format. The reason for converting to the PIR format is to use the DISTANCES program.
Des Higgins,
EMBL Data Library,
April 1992.
DISTANCES is a FORTRAN90 program which can read a file in PIR format and create a distance matrix.
SPACER is a FORTRAN90 program which can read a distance matrix and perform a principal component analysis.
SPACER_DATA_CONVERT is an executable FORTRAN90 program which can read a multiple sequence alignment file and write out the relevant information into a file in PIR format.
You can go up one level to the FORTRAN90 source codes.