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normalizing numbers

Started by Nodger Mar 31, 2004 at 9:42 PM 5 replies 350+ views

Original Post

Mar 31, 2004 at 9:42 PM

Sorry for posting this dumb question, I SHOULD figure it out myself but its 3:40 AM... anyway, I want to normalize a bunch of numbers (floats) to the range 0-100, (yes I tried google) , so for example if I have a lower limit of 10 and an upper limit of 30 then 20 would become 50, because its halfway between 10 and 30...

yaroslavd

Mar 31, 2004 at 9:51 PM

num = (num-lowerbound)*100/(higherbound-lowerbound)

I think...

angry

Mar 31, 2004 at 9:53 PM

too fast

[edited by - angry on March 31, 2004 10:59:02 PM]

Nodger

Author

Nodger

Mar 31, 2004 at 10:04 PM

uh.. i want to find the 50

fuck it.. maybe Ill go to sleep for a few hours

hplus0603

Mod

3,014

hplus0603

Mar 31, 2004 at 10:24 PM

midpoint(set) = (min(set) + max(set)) / 2

Specchum

Mar 31, 2004 at 10:42 PM

hplus, he doesn''t want the average of two numbers but normalized numbers.

yaroslavd''s equation is spot on methinks. I don''t understand wot Nodger meant by his reply though. You WILL get 50 if you use the equation, except that LHS should perhaps read ''normalized'' instead of ''num'' to avoid confusion.

"There is no dark side of the moon." - Pink Floyd

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