Limiting the values of a vector to a specific numeric range with std::clamp
In a lot of applications, we get numeric data from somewhere. Before we can plot or otherwise process it, it may need to be normalized because the values differ randomly far from each other.
Usually, this would mean a little std::transform
call over the data structure that holds all these values, combined with a simple scaling function. But if we do not know how large or small the values are, we need to go through the data first in order to find the right dimensions for the scaling function.
The STL contains useful functions for this purpose: std::minmax_element
and std::clamp
. Using these and combining them with some lambda expression glue, we can perform such a task easily.
How to do it...
In this section, we will normalize the values of a vector from an example numeric range to a normalized one in two different ways, one of them using std::minmax_element
and one using std::clamp
:
- As always, we first need to include...