First element greater than

I have a set of data containing x,

How can i extract only the first value greater than x in this set.

Answer 1

[Star Strider]

Try simething like this —

v = randi(9, 1, 20)

v = 1×20

5 4 2 5 2 6 7 2 6 6 3 8 5 8 7 4 7 4 8 7

x = 7

x = 7

first_x_idx = find(v > x,1,'first')

first_x_idx = 12

Result = v(first_x_idx)

Result = 8

.

[AAZ]

I have v=[-0.1011 -0.0712 -0.0562] , and x=-0.0599, so i try to use the code above but it give for the first value lower than x is -0.1011 but i want -0.0721.

So how can i solve it

[Star Strider]

I am confused. I am not certain what you want.

I am not certain how robust this will be for other vectors, however here it gives the result you want —

v = [-0.1011 -0.0712 -0.0562];
x = -0.0599;

first_x_idx = interp1(v,(1:numel(v)),x,'previous')

first_x_idx = 2

Result = v(first_x_idx)

Result = -0.0712

.