How I plot data using a specific frequency?

2017 1 25
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Hi I have measured data every 0.25 second but I would like to plot only data measured every second. EX (00:00:00.00 = 10 00:00:00:25 = 11 ........... .. 00:00:01.00 =13) I want to plot only data at 00:00:00.00 and 00:00:01.00. Any help? thank you

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KSSV
KSSV 2017-1-25

1 个投票

let t be your time......you skip four values and plot.
Eg:
t = 0:0.25:10 ;
iwant = t(1:4:end) ;
Other way would be, you create your new wanted time and do interpolation for plotting.

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