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diskdata

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Purpose

Read in or write an array or set of strings to a file.

Synopsis

procedure diskdata(format:integer, file:string, a:array)

procedure diskdata(format:integer, file:string, s:set of string)

Arguments

format	Format options: ETC_DENSE  dense data format ETC_SPARSE  sparse data format ETC_SGLQ  strings quoted with single quotes ETC_NOQ  strings are not quoted in the file ETC_OUT  write to a file ETC_APPEND  append output to the end of an existing file ETC_TRANS  tables are transposed ETC_IN  read from file (default) ETC_NOZEROS  skip zero values Several options may be combined using `+'.
file	Extended file name
a	Array with elements of a basic type
s	Set of strings

Example

The following example declares two sets and two dynamic arrays. The array ar1 is read in from the file in.dat. Then both arrays, ar1 and ar2, are saved to the file out.dat (in sparse format) and finally the contents of the set Set1 is appended to the file out.dat.

declarations
 Set1: set of string 
 R: range 
 ar1,ar2: array(Set1,R) of real
end-declarations

diskdata(ETC_SPARSE, "in.dat", ar1) 
diskdata(ETC_OUT, "out.dat", [ar1, ar2])  
diskdata(ETC_OUT+ETC_APPEND, "out.dat", Set1)

Further information

This procedure reads in data from a file or writes to a file, depending on the parameter settings. The file format used is compatible with the command DISKDATA of the modeler mp-model.

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