varputl

Purpose

Allows a matrix, array, string, or string array to be assigned to a local symbol given as a string argument.

Format

y = varputl(x, n)
Parameters:
  • x (matrix or array or string or string array) – data which is to be assigned to the target variable.
  • n (string) – the name of the local symbol which will be the target variable
Returns:

y (scalar) – 1 if the operation is successful and 0 if the operation fails.

Examples

proc myProc(x);
   local a, b, c, d, e, vars, putvar;

   a = 1;
   b = 2;
   c = 3;
   d = 5;
   e = 7;

   vars = { a b c d e };

   putvar = 0;

   // Keep looping until the user enters a letter
   // a-e or A-E
   do while putvar $/= vars;
      // Two semi-colons at the end of a print statement,
      // prevents a 'new line' from being printed
      print "Assign x (" $vars "): ";;
      putvar = upper(cons);
      print;
   endo;

   // Assign the variable whose letter/name was entered by
   // the user to be the value passed into 'myProc'
   call varputl(x, putvar);
   retp(a + b*c - d/e);
endp;

// Format printing of numbers to allow 2 spaces between them
// and 1 digit after the decimal place
format /rds 2,1;

z = myProc(17);
print " z is " z;

Note

This example will ask for user input at the GAUSS command prompt

produces:

Assign x ( A  B  C  D  E ): a

 z is 22.3

Remarks

x and n may be global or local. The variable, whose name is in n, that x is assigned to is always a local.

See also

Functions vargetl()