随机变量对应的概率sf_nbinpdfx,orarrayofrealrintegerp,一个实数数组@@r@@,1-20returnsf_nbinpdfx,media2024-03-20_wefcpvnqqtg5qgjaimage254,quotimg参考refsf_nbincdfref,…

对应的累计概率sf_nbincdfx,orarrayofrealrintegerp,一个实数数组@@r@@,1-10returnsf_nbincdfx,media2024-03-20_wefcpvnqqtg5qgjaimage255,quotimg参考refsf_nbinpdfref,…

%变动百分比%算法ri:=,-1*100framepct_changet,大于0时表示前n期到,小于0时表后n期到,582returnframepct_changet,-750returnframepct_changet,…

给出wweight权重向量regression_wlsy,tdtrtrtdquotr-squared,trtrtdquotadjustedr-squared,和自变量x长度都是n假设满足,i=123n用矩阵,矩阵y为因变量的n个观测,组成的n1的,015returnregression_wlsy,…

functiongetconcurrencyinfobegininfo_t:=,infornkey,str2arrayinfo_t0,:=str2arrayinfo_t1,…

值输出随机变量值sf_betainvy,001-099r:=sf,media2024-03-20_wefcpvnqqtg5qgjaimage292,quotimg参考refsf_betapdfref,sf_betacdfref,…

%算法period0前n期涨幅,100period0到未来n期涨幅,period0时与framepct_change的,一致framelag_zft,582returnframelag_zft,-750returnframelag_zft,…

华夏出版社p218页b_sofstock_,integersrealxrealrrealclose,实数执行价@@r@@,年利率%@@close_@@,范例tcodereturnb_sofstock_,media2024-01-08_igyqnpdpfidoi2hcimage630,…

语句例如codesetsysparampn_stocksz000001,pn_cyclecy,datearr:=stocktradedayqkbegtendtr:=array,:=datearrnisetsysparampn_dateday,ni日期:=datetostrdayrni收盘价,价格param:=arraypn_cyclecy,…

实现如下codefunctiongriderr_demobegin,lengthstocks-1dori:=,i:=0tolengthr-1,reti:=rireturn,sbegintrysetsysparampn_stocks,arraydatetostrsp_timecurrentstockname,…