How to round decimals to other decimal values already defined

1 view (last 30 days)
Hello, I would like to request your support to know how to round certain decimal values to others closer. For example, if I have [0.359 0.679 0.890 0.5653] I would like to know how I can round up these values to only take the following [0.2 0.4 0.6 0.8] depending on the value in which they are. So for example 0.359 would be rounded to 0.4, 0.679 to 0.8, etc. The criterion in the example is: less than 0.65 is the value of the nearest smaller number that is 0.6 and greater than or equal to 0.65 is the value of the next higher number that would be 0.8

Accepted Answer

KVM on 29 Nov 2017
This is a way of doing it! :
a = [0.359 0.679 0.890 0.5653];
b = [0.2 0.4 0.6 0.8];
newA =0;
for iLoop = 1:length(a)
c = b-a(iLoop);
d = c( c>=0 );%Keep only Positive Value
[e index] = min(d);
if ~isempty(d);
newA(iLoop) = e+a(iLoop);
newA(iLoop) =0; % Default Value
newA %Display Result
Display: newA =
0.4000 0.8000 0 0.6000
  1 Comment
Pilar Jiménez
Pilar Jiménez on 30 Nov 2017
Thank you very much, it is a way of doing it that I would have never considered it. It will definitely help me a lot.

Sign in to comment.

More Answers (0)


Find more on Data Type Conversion in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!