How do I define and use a standard range written by variable

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edo nissim 2020-2-4

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评论： Walter Roberson 2020-2-4

Hi every one!

I want to define the standard range "690N to 1200N" (N has to be a positive and integer number).

hen when i get a number I want to check if the number that I got is in my range (690-1200 or 1380-2400 or 2070-3600 or...).

Thank you very much!

Robert

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Answer 1

Ruger28 2020-2-4

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在 MATLAB Online 中打开

N = 1;
RangedValues = [690*N:1200*9]; % set your range, assuming your values are always 690 and 1200 * N 
Num2Check = 1459; % number to see if it is within range
if Num2Check >= RangedValues(1) && Num2Check <= RangedValues(end) % check greater than first value and less than last
   disp('Number is within range'); 
   % rest of code below since nnumber is within range
end

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edo nissim 2020-2-4

Thank you but I know how to check if the N is known (like you did with N=1).

I would like to know when I dont know what is N and it is can be any number/ I want the the software to with the options of N automatically. thanks.

Walter Roberson 2020-2-4

在 MATLAB Online 中打开

if ~exist('N', 'var') || isempty(N)
    you do not know what N is
else
    N exists and is non-empty but you need to check that it is valid
end

See also https://www.mathworks.com/help/matlab/ref/double.discretize.html

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Answer 2

Fangjun Jiang 2020-2-4

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编辑：Fangjun Jiang 2020-2-4

在 MATLAB Online 中打开

N=10; % provide a reasonable number based on the range of input data
n=1:N;
LowBound=690*n;   
HighBound=1200*n;
InputData=[100 1000 1300 1400]' ;
OutputFlag=any(and(InputData>LowBound, InputData<HighBound),2)