MATLAB: How to plot the data with the mean plus standard deviation

averagegraphMATLABmeanplotstandard deviation

How to plot the data with the mean plus standard deviation ? Generate a graph (X verse Y1, Y2). Y1 is the mean plus standard deviation, Y2 is the average less standard deviation. However I would like the graph area between Y1 and Y2 stay filled. My data are similar to these:
X Y1 Y2
1.054171 82.09164 71.74552
1.154169 85.30468 82.58082
1.254169 78.50763 75.39015
1.356947 84.39281 63.49761
1.445835 85.00555 62.59616
1.545835 86.27113 64.9023
1.645836 91.08072 87.28493
1.745834 89.34505 87.97645
1.845835 89.40639 80.56947
1.945835 85.54469 78.97661
2.045835 83.65078 79.415

Best Answer

fill([x;flipud(x)],[y1;flipud(y2)],'k')