How to define where x axis intercepts y axis

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SUMMARY

To define where the x-axis intercepts the y-axis in a MATLAB bar plot, users can overlay a horizontal line at the desired intercept value. In the discussed example, the x-axis should intercept the y-axis at 0.5, allowing bars above this value to appear above the x-axis and those below to appear below. The MATLAB function bar() is utilized for plotting, and the ylim() function is used to set the y-axis limits. For further guidance, users can refer to the MATLAB documentation on creating plots.

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jemma
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I want to plot a bar plot using matlab.
For example:

x = [0.4 0.5 0.7 0.2 0.1 0.8]
bar(x)
ylim([0 1])

now I want the x-axis to intercept the y-axis at 0.5 so that any bars >0.5 lie above the x-axis and any bars <0.5 are below.

Is this possible?
Thanks.
 
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I'd look into overlaying a horizontal line on top of your bar graph:
http://www.mathworks.com/help/techdoc/creating_plots/f10-19972.html#f10-22444
 
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