Thread: Scale back size of Numbers while maintaining proportion

Hi,

I am been given a list of numbers in a certain format [19700, 19900, 79400, 79600, 79800, 179300, 179500, 279799 etc]. There is no maximum value on this list.

I need to scale back these numbers so that they don't exceed the number 5100 but I need to preserve the proportion of the numbers i.e. 179500 is higher than 79600 which is higher than 79400 etc etc.

I thought I could do this with mod 5100 but in hindsight that doesn't work...

Any suggestions would be greatly appreciated about how I should approach this.

Maybe divide by a common no.?
...but that would(for whole no.s) convert some > or < conditions to >= and <= resp.

Do you mean that some of the numbers could end up the same? I need them to be unique......

Is there any way to approach this using mod combined with something else?

Actually from doing some more searching I think there's no way to do this unless I know the highest number in my list (279799 in the list I gave above). If I know this I can scale it according to the below:

r = 5100 * (value / Integer_MAX_VALUE)

e.g. r = 5100 * (79600/279799)

Actually from doing some more searching I think there's no way to do this unless I know the highest number in my list

You could find it at runtime....if the lists are not too large to do that nicely.

Though it doesn't sound like a good idea, I think you could wing it by storing it as a double (if that isn't accurate enough/...use some Arbitrary Precision library....and the associated power of 10 to get back the original number)