Convert Text to Real Number

[Gerald Lock]

I've searched the GDL User Manual and through this forum (and the old deprecated one) but I'm unable to find any mention of a function to convert a string to a real number.

Is this possible?

I have an object parameter that I've define set values for to make them available in a drop-down.

The problem is GDL values only seem to show as a drop-down when the paramater type is set to string.

I want to use the selected value in a numeric expression, but am obviously unable to.

I could convert every single value in the list to a separate numeric variable using if..then but this seems tedious.

Surely there's a way to look at a string and extract a numeric value from it (or return 'zero' if there is none)?

[Barry Kelly]

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@Gerald Lock wrote:

I have an object parameter that I've define set values for to make them available in a drop-down.

The problem is GDL values only seem to show as a drop-down when the parameter type is set to string.

I want to use the selected value in a numeric expression, but am obviously unable to.

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If it is not too late, change your parameter type to length, angle, real number or integer (depends what you need it for).

You can still have a VALUES list of numbers, and then you do not need to convert them.

Otherwise you can use the SPLIT command to extract the number form the string.

In you case I would assume it would be something like ... n = SPLIT (string_variable, "%n", num)

'num' will be your number.

Barry.

[Gerald Lock]

This isn't working for me

Values (sw) set:

but drop-down not functional

[Gerald Lock]

oops, just realised I forgot to remove the "" in the values definition.

solved!