A script should be able to do this; one would identify the peaks using transformations, such as @DDF and @EVNT. A change in sign of @DDF from positive to negative indicates a peak. For instance, take a look at this variable, if fft_var is the FFT that you are plotting.
yes? LET fft_ddf = IF fft_var[t=@ddf] LT 0 THEN 1 ELSE 0
This doesn't give the answer you want, but I hope will get you started, you will need more transformations to do the whole job. The idea will be to set up a variable which is 1 at the peaks you want to mark. Then do a REPEAT loop over the times and when this new variable is 1 make a label.
Ansley
golla nageswararao wrote:
Hi all,I have time series data of currents at particular location. I did fft of that. I want to know the peak's values correctly. I had used label command to know the peak's values as shown in the figure. But I dont want to label manually the values of that peaks. I want to do the marking automatically while plotting itself. I think u all understood what I am asking? Any help is appreciated.Thanks in advance.
From,G.Nageswara Rao,Research Scholar,INCOIS,Jeeidmetla,Hyderabad.
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