Creating new arrays under conditions.

So what I want to do is the following: I have 2 vectors: Start() and stop() containing starting points of a signal and ending points of a signal. What I want to do is the following: If the absolute value of the difference between the ending point and next starting point is less than, say 1000, I want the new ending point to be the next one in the array.

So, given start = (5000 , 7000, 12500, 14200, 19000) and stop=(4500, 8520, 14000, 14500, 21000), The difference between the first and fourth column is less than 1000, so I want an array with the first new stop to be the 2'nd stop (8520) and the 4'th stop to be the fifth (21000), so: New_stop = (8520, 14000, 21000).

This is my code, but I keep getting an error. Help would be much appreciated and thanks in advance!

OriginalStart=start;

for j=1:length(start)

New_start(j)=start(j+1) (abs(stop(j)-start(j))<5000);

New_stop(j)=stop(j+1) (abs(stop(j)-New_start(j))<5000);

end

Answer 1

[Jan]

start = [5000, 7000, 12500, 14200, 19000];
stop  = [4500, 8520, 14000, 14500, 21000];

keep = (abs(start - stop) >= 1000);
newStop = stop(keep)

newStop = 1×3

8520 14000 21000

What is the wanted output for newStart?

newStart = start(keep)  % ?

newStart = 1×3

7000 12500 19000

newStart = start([true, keep(1:end - 1)]) % ?

newStart = 1×3

5000 12500 14200