CODEWITHSUNDEEP
c#
user339160
user339160

Reputation:

How do I round to the nearest number between 0-1

We need to round like this

0.15 => 0.5
0.5 => 0.5
1 => 1
152 => 1
1538 => 1
25000 => 1

How to achieve this ? This is what i was trying 

 decimal number = 10;
 decimal rounded = Math.Ceiling(number / 10000 * 20) / 20;

This don't work as expected if number is 100000 or greater ,because give me 10 as the result

Upvotes: 0

Views: 95

Answers (2)

Dmitrii Bychenko
Dmitrii Bychenko

Reputation: 186668

Something like that:

public static Double Clamp(Double n) {
  return n > 1.0 ? 1.0 : n < 0 ? 0 : n;
}

However. in that case the 1st sample will be

 0.15 => 0.15

as the question states "...to the nearest number between 0..1".

Edit: an extended version of Clamp could be something like that:

public static Double Clamp(Double value, Double min, Double max) {
  //TODO: you may want to check here if min > max

  return value > max ? max : value < min ? min : value;
} 

public static Double Clamp(Double value) {
  return Clamp(value, 0.0, 1.0);
}

if you're insisting on 0.15 => 0.5 it may be the case that you actually want

  Clamp(value, 0.5, 1.0); // [0.5..1], not [0..1]

Upvotes: 2

Rob
Rob

Reputation: 27357

I'm guessing it should be 0.15 => 0.5, as Dmitry said. In that case, you can do this:

private double RoundIt(double value)
{
    if (value <= 0)
        return 0;
    if (value >= 1)
        return 1;
    return value;
}

Upvotes: 0

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