你好,我在matlab上怎么run出来是0,0,0那 能帮忙看看什么问题吗 excel只有1列包含1000多个数据
>> index=xlsread('index.xlsx');
>> PortReturn=mean(index);
>> PortRisk=std(index);
>> RiskThreshold=[0.01,0.05,0.1];
>> PortValue=1;
>> ValueAtRisk=portvrisk(PortReturn,PortRisk,RiskThreshold,PortValue)
ValueAtRisk =
0
0
0