Deleting unnecessary values in numerical array

I have following ordered array (simplified):

1420 1
1410 1
1400 1
1390 0.9
1380 0.8
1370 0.7
...
1300 0
1290 0
1290 0

The first column is temperature, the second column is a physical quantity. I would need a solution how to cut the array so I have:

1400 1
1390 0.9
1380 0.8
1370 0.7
...
1300 0

So basically I need values between 1 and 0 meaning deleteing all unnecessary values before 1 and after 0. Can anybody help me?

Answer 1

[Chunru]

% Assume that your data in second column is sorted.
x = [
1420 1
1410 1
1400 1
1390 0.9
1380 0.8
1370 0.7
1300 0
1290 0
1290 0];

i1 = find(x(:,2)==1, 1, 'last')

i1 = 3

i2 = find(x(:,2)==0, 1, 'first')

i2 = 7

x1 = x(i1:i2, :)

x1 = 5×2

1.0e+03 * 1.4000 0.0010 1.3900 0.0009 1.3800 0.0008 1.3700 0.0007 1.3000 0