Series<Numeric> long_entry;

   Series<Numeric> NetChg;

   Series<Numeric> TotChg;

   Series<Numeric> EffRatio1;

   Series<Numeric> w_er;

//多头开仓

long_entry = w_er>0.55;

if(long_entry[1] and MarketPosition==0 and dir[1]==1 and no_open==False)

{

entry_price=open;

Buy(lots,open);

}

//空头开仓

short_entry = w_er>0.55;

if (short_entry[1] and MarketPosition==0 and dir[1]==-1 and no_open==False)

{

entry_price=open;

SellShort(lots,open);

}

错在哪呢，应该是同类型