ts<-getSymbols("TATASTEEL.NS", from="1900-01-01") garchFit(OCHLR(ts)[,1] ~ garch(1,1), data = OCHLR(ts)[,5]) garchFit((OCHLR(ts)[,3]-OCHLR(ts)[,4]) ~ garch(1,1), data = OCHLR(ts)[,5])
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