Plotting every 15th elements of a vector

I have this vector file which is 345*1 and I only want to plot every 15th elemts versues time i tried this

plot(ASCM_time(1:15:end),ASCM_GPS_number_satellite,'g')

but it doent work, and it tells me

"Error using plot Vectors must be the same lengths."

both vectors are 345*1.

what should I do? any suggestion? please thanks

Answer 1

[Azzi Abdelmalek]

   plot(ASCM_time(1:15:end),ASCM_GPS_number_satellite(1:15:end),'g')