Hello how would I get the value back after I normalise the data ?
Currently I am taking my list of numbers and doing $\frac{\text{Val} - \text{Min}}{\text{Max} - \text{Min}}$ on each of the numbers. With gives me a number from $1$ to $0$; But how would i revert this back to the original. I have tried $(\text{Val} + \text{Min}) \cdot (\text{Max} + \text{Min})$ this is probably really simple but I have become unstuck en and it kind of annoying me now.
Multiply each number in your list by $(\max-\min)$ and then add min to it. :)