diff --git a/plotAndComparison.asv b/plotAndComparison.asv
new file mode 100644
index 0000000..7990bee
--- /dev/null
+++ b/plotAndComparison.asv
@@ -0,0 +1,6 @@
+function [ output_args ] = plotAndComparison( rVolt,rVAngel,SEVolt,SEVAngel )
+x=1:length(rVolt);
+plot(x,rVolt)
+
+end
+
diff --git a/plotAndComparison.m b/plotAndComparison.m
new file mode 100644
index 0000000..7eda615
--- /dev/null
+++ b/plotAndComparison.m
@@ -0,0 +1,12 @@
+function plotAndComparison( rVolt,rVAngel,SEVolt,SEVAngel )
+x=1:length(rVolt);
+subplot(2,1,1);
+plot(x,rVolt,'r-');
+hold on
+plot(x,SEVolt);
+subplot(2,1,2);
+plot(x,rVAngel,'r-');
+hold on
+plot(x,SEVAngel);
+end
+
diff --git a/run.m b/run.m
index 97499c8..7647912 100644
--- a/run.m
+++ b/run.m
@@ -10,7 +10,7 @@ addpath('.\Powerflow')
 % 电压 相角
 %%
 %% 开始生成量测量
-sigma=0.05;% 标准差
+sigma=0.01;% 标准差
 %% 电压
 %电压幅值
 rVolt=Volt; %幅值
@@ -117,3 +117,4 @@ fprintf('目
 fprintf('相对误差\n');
 (abs(rVolt-double(SEVolt)))./(rVolt)
 MaxDeviation(rVolt,SEVolt,rVAngel,SEVAngel)
+plotAndComparison( rVolt,rVAngel,SEVolt,SEVAngel )