0
$\begingroup$

I have a list of input values from 0 to 100. Each value must be scaled to a short scale, that start from 20 to 80.

So:

0=>must be 20
100=> must be 80

and each numbers between 0 and 100 must take a scaled value into 20-80 range. What's the formula for scaling this input value?

$\endgroup$
2
$\begingroup$

How about $f(n)=0.6n+20$?.........

| cite | improve this answer | |
$\endgroup$
  • $\begingroup$ I found it perfect! How did you find it? $\endgroup$ – markzzz Sep 13 '13 at 15:35
  • 1
    $\begingroup$ It is the slope-intercept form of a line. You wanted to reduce the range of $100$ to $60$, a factor $0.6$ and you wanted an intercept of $20$. $\endgroup$ – Ross Millikan Sep 13 '13 at 15:43

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.