cr<-cReturns(spData,ttr="MACD") Error in ind[t - k] <- pos[t - k + 1] - pos[t - k] : replacement has length zero> cr<-cReturns(spData,ttr="macd4")Why is the above error coming? macd4 works alright ( which is a custom function built by the ttrTests author) while MACD doesnt work. Thanks -- 'Raghu' [[alternative HTML version deleted]]