A method for calculating small parameters of A-share stocks in R language
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Libname yu "E:\ yugao\ time span correlation\ TXT"; * sh700000 data test; data test; set yu.tar (rename= (var1=date var2=open var3=high var4=low var5=close var6=volume var7=amount)); drop amount;run * calculate R parameter, R (21) = C (t) / C (tmur21), when I
