Input files

File content determination via file name extensions

lmt automatically detects the format of input files by the filename extension. Supported extensions are

• ".csv" for ordinary comma separated values ascii text files
• ".blkcsv" for comma separated value ascii text files in block format
• ".bin" for binary files in block format

".csv" files

".csv" files may contain several commented lines at the top only where the comment character is "#".

The type of the file content is determined by its prospective use, that is

• the data file is supposed to contain only real/float numbers which are transferred to integer if required,
• a file containing an ordinary pedigree is supposed to contain only integer numbers,
• a file containing a missing value indicator matrix is supposed to contain only character strings.

data file

lmt accepts only a single file containing the actual data. A data file in ".csv" format must follow the following formatting rules:

• file must have at least one commented line where the last commented line must containing the column names separated by comma,
• the column names
  • must be alpha-numeric only
  • must not be quoted
  • must be unique
• below the header the data file must contain only numeric values where the decimal separator is a dot(".").

An example for a data file with three columns is shown below.

#y,mu,id
25.0,1,5
33.1,1,6
36.0,1,7
28.3,1,8

co-variance matrix files

Co-variance matrix files contain full squared symmetric matrices, for instance

1.5,0.8,0.1
0.8,2.1,1.1
0.1,1.1,1.9