diff --git a/OPF.m b/OPF.m
index 0a17982..29194e3 100644
--- a/OPF.m
+++ b/OPF.m
@@ -23,12 +23,12 @@ for badDataNode=1:1
         PD0=sparse(Busnum,1);
         QD0=sparse(Busnum,1);
         %先试一下均匀分布
-        PD0(Loadi)=RealPD(Loadi).*(1+unifrnd(-RealPD(Loadi)*sigma,RealPD(Loadi)*sigma,length(Loadi),1));
-        QD0(Loadi)=RealQD(Loadi).*(1+unifrnd(-RealQD(Loadi)*sigma,RealQD(Loadi)*sigma,length(Loadi),1));
-        mVolt=rVolt.*(1+unifrnd(-rVolt*sigma,rVolt*sigma,1,length(rVolt)));
+        PD0(Loadi)=RealPD(Loadi).*(1+unifrnd(-3*sigma,3*sigma,length(Loadi),1));
+        QD0(Loadi)=RealQD(Loadi).*(1+unifrnd(-3*sigma,3*sigma,length(Loadi),1));
+        mVolt=rVolt.*(1+unifrnd(-3*sigma,3*sigma,1,length(rVolt)));
  
     
-        
+        %正态分布
 %         PD0(Loadi)=RealPD(Loadi).*(1+normrnd(0,sigma,length(Loadi),1));
 %         QD0(Loadi)=RealQD(Loadi).*(1+normrnd(0,sigma,length(Loadi),1));
 %         mVolt=rVolt.*(1+normrnd(0,sigma,length(rVolt),1))';