Dear All, I have two set of data column x and y. I have plotted plot (x,y). y is oscillatory. I want to shade the area above and below x axis with different colors like shown in image. Can anyone please help me. I have attached the data in excel she

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Manish Kumar 2019-1-8

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https://ww2.mathworks.cn/matlabcentral/answers/438707-dear-all-i-have-two-set-of-data-column-x-and-y-i-have-plotted-plot-x-y-y-is-oscillatory-i-wan

编辑： Manish Kumar 2019-1-8

Book1.xlsx

Two columns of data x and y, importing and polt them. Y is oscilatory, so i want to fill the graph with different colors such that above x axis one color and below x axis, another color.

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madhan ravi 2019-1-8

when asking a question provide the datas first

Manish Kumar 2019-1-8

Book1.xlsx

Here is the data, Please help me.

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Stephen23 2019-1-8

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Use area. You might need to plot the data twice to get the effect you want.

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Robert U 2019-1-8

在 MATLAB Online 中打开

Example:

x = 0:0.2:100;
y = ( x - ( 100 - x ) ).* cos(x);
yGzero = (y>0).*y;
yLzero = (y<=0).*y;
area(x,yGzero,'FaceColor','r')
hold on
area(x,yLzero,'FaceColor','black')