berger

 Resampling with the Berger algorithm
 [HRV,RRI] = berger(RRI, Fs)
 [HRV,RRI] = berger(ONSET, Fs)
 [HRV,RRI] = berger(HDR, Fs)
 
 RRI     R-to-R interval 
 ONSET onset time QRS-complex
 Fs    target sampling rate
 HDR    header struct as defined by SOPEN, SLOAD. 
     HDR.EVENT must contain the QRS events
 HRV     heart rate variability sampled with Fs
 RRI    R-to-R interval sampled with Fs

 Reference(s):
 [1] Berger RD, Akselrod S, Gordon D, Cohen RJ. 
    An efficient algorithm for spectral analysis of heart rate variability.
    IEEE Trans Biomed Eng. 1986 Sep;33(9):900-4.