组合betaffi_pfbetaw,parrayw_barray,arrayfarraydelta,realw_p@,*1@@w_b@,n*k@@f@@,19570308780020686087f:=array,bw_pxfdelta//,…

个股betaffi_stockbetaw,barrayxarrayfarraydelta,arrayw_b@,n*k@@f@@,值范例tcodew_b:=,19570308780020686087f:=array,4365166071548returnffi_stockbetaw,bxfdelta//,…

风险sigmaffi_sigmaw,parrayxarrayfarraydelta,realw_p@,n*k@@f@@,值范例tcodew_p:=,19570308780020686087f:=array,4365166071548returnffi_sigmaw,pxfdelta//,…

风险价值varffi_varw,parrayxarrayfarraydelta,confidenceintervalrealrealw_p@,n*k@@f@@,值范例tcodew_p:=,19570308780020686087f:=array,confidenceinterval:=95returnffi_varw,…

采用作用集方法prog_qh,b求解不等式约束prog_qh,不等式约束等式约束prog_qh,约束上下界限约束prog_qh,*x2+sumf*x,prog_qharrayfarraya,数组不可缺省@@f@@,02//二次项f:=array,…

二乘法进行回归leastsquares_curvefittingf,yarrayarrayf@@,空值或者nan去除f和y,左除范例tcodef:=array,05044returnleastsquares_curvefittingf,media2024-03-20_wefcpvnqqtg5qgjaimage589,…

债与系统证券pn_stock有关,subpvrealcrealfinty,票面年利息@@f@@,media2024-01-08_igyqnpdpfidoi2hcimage98,定期付息债setsysparampn_stockquot,quotreturnbondmacaulayduration2_sub107,…

债与系统证券pn_stock有关,subpvrealcrealfinty,票面年利息@@f@@,media2024-01-08_igyqnpdpfidoi2hcimage99,定期付息债setsysparampn_stockquot,quotreturnbondconvexity2_sub9,…

序列是平稳的times_adftesty,diffintegerstyleintegerfstringp,有趋势2@@f@@,可参照eviewssetsysparampn_dateinttodate,n:=40setsysparampn_stockquot,数项和趋势项//f:=quot,1阶//returntimes_adftesty,…

数据表-去重framedrop_duplicatesdata,重保留方法quotquotfquotquot,tcodedata:=load_dataset_,returnframedrop_duplicatesdata,…