Finding if numbers are within range

조회 수: 104 (최근 30일)
GOENG
GOENG 2015년 4월 24일
답변: Wupadrasta Santosh Kumar 2020년 10월 1일
Hello, just trying to figure out a way to find a number in a vector within range. I'm trying practice for loops but still bad at it.
%the range is from 1 to 10
xRange = [5 2 1 -1 5 67 3]
for inside = xRange(1,1):length(xRange)
if xInside, out of range
delete number
else
store number in new vector/keep it in the same vector
end
I tried doing something like
if xInside == 0 xInside(xInside==0) = []; %which sould delete the 0
end
but what if 0 was part of it?
so i tried it in nan
if xInside < max(xRange) | xInside > min(xRange)
turn the number into NaN. end
but not sure how to get that last part.

답변 (4개)

Andrei Bobrov
Andrei Bobrov 2015년 4월 24일
r = [1, 10];
xRange = [5 2 1 -1 5 67 3];
ii = xRange >= r(1) & xRange <= r(2)
out = xRange;
out(~ii) = nan;

Ingrid
Ingrid 2015년 4월 24일
I do not think you need to use a for loop for this problem, instead using a vectorized solution is much faster and easier to read
belowRange = (xRange < 1);
aboveRange = (xRange > 10);
iRemove = or(belowRange,aboveRange);
xRange(iRemove) = [];
should do the trick

Rushikesh Tade
Rushikesh Tade 2015년 4월 24일
input_vector=1:100;
range_upper_limit=50;
range_lower_limit=25;
indices_in_input_vector_within_the_range= intersect(find(input_vector>=range_lower_limit),find(input_vector<=range_upper_limit))
input_vector(
indices_in_input_vector_within_the_range)

Wupadrasta Santosh Kumar
Wupadrasta Santosh Kumar 2020년 10월 1일
My simple take would be:
range = [1 10];
xRange = [5 2 1 -1 5 67 3];
decisionV = (ones(length(xRange),1)*range - (ones(2,1)*xRange)')>0;
OutDecision = ~xor(decisionV(:,1),decisionV(:,2));
xRange(OutDecision) = [];

카테고리

Help CenterFile Exchange에서 Loops and Conditional Statements에 대해 자세히 알아보기

Community Treasure Hunt

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

Start Hunting!

Translated by