Initial data commit

Task/Associative-array-Creation/RLaB/associative-array-creation.rlab

@@ -0,0 +1,24 @@
+x = <<>>;  // create an empty list using strings as identifiers.
+x.red   = strtod("0xff0000");  // RLaB doesn't deal with hexadecimal numbers directly. Thus we
+x.green = strtod("0x00ff00");  // convert it to real numbers using ''strtod'' function.
+x.blue  = strtod("0x0000ff");
+
+// print content of a list
+for (i in members(x))
+{ printf("%8s %06x\n", i, int(x.[i])); }  // we have to use ''int'' function to convert reals to integers so "%x" format works
+
+// deleting a key/value
+clear (x.red);
+
+// we can also use numeric identifiers in the above example
+xid = members(x);  // this is a string array
+
+for (i in 1:length(xid))
+{ printf("%8s %06x\n", xid[i], int(x.[ xid[i] ])); }
+
+// Finally, we can use numerical identifiers
+// Note: ''members'' function orders the list identifiers lexicographically, in other words
+// instead of, say, 1,2,3,4,5,6,7,8,9,10,11 ''members'' returns 1,10,11,2,3,4,5,6,7,8,9
+x = <<>>;  // create an empty list
+for (i in 1:5)
+{ x.[i] = i; }  // assign to the element of list ''i'' the real value equal to i.