Accessing a value in a vector from a conditional statement

Hi All,

Im trying to access a vlue in the middle of my vector as per below. From my mv value of 13.073 i should receive the value of 25 from the vector, ie next highest from mv. I would like to get both the value and index

v=[6 10 25 35 50 65 80]
x=10.02
y=10.47
mv=max(x*.125,y*1.25)
for k=1:length(v)
    if v(k)>mv
        mv=v(k)
        ind=k
    end
end

Thanks,

Everyone

Answer 1

[Star Strider]

There are several ways to do this.

My approach:

v=[6 10 25 35 50 65 80];
x=10.02;
y=10.47;
mv=max(x*.125,y*1.25);
ind = interp1(v,(1:numel(v)), mv, 'next')
Out = v(ind)

producing:

ind =
     3

Out =
    25

I prefer not to overwrite existing variables, so I have the output as ‘Out’.

.

Answer 2

[Image Analyst]

Use find():

v=[6 10 25 35 50 65 80]
x=10.02
y=10.47
mv=max(x*.125,y*1.25)
[~, index] = find(v >= mv, 1, 'first')
value = v(index)

index =

3

value =

25

[Frank Lehmann]

Thanks guys much appreciated it also helps having a few different solutions to keep in mind next time.