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I am very new to MATLAB and expect a step-by-step solution. I have data, series(y), which I have to plot against (x). Also I have the standard deviation values for each data point of (y). Now I have to plot these series highlighting the error bars. How can I do that?
The data is in a text file sorted in columns as:
X = -50, -49, -48, -47....0....1, 2, 3, 4, 5....till 50
Y = 1.2, 1.0, 1.1, 1.9, 1.3.....
Standard deviation = 0.6, 0.5, 0.3, 0.6, 0.6.....
Also, how do I control the ticks and appearance property for these kinds of graphs?
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Error bars often represent one standard deviation of uncertainty, one standard error, or a particular confidence interval (e.g., a 95% interval).
An error bar is a line through a point on a graph, parallel to one of the axes, which represents the uncertainty or variation of the corresponding coordinate of the point. In IB Biology, the error bars most often represent the standard deviation of a data set.
x = 1:0.1:10;
y = sin(x);
e = 0.1 * randn(length(x), 1);
errorbar(x,y,e)
set(gca, 'Xlim', [4 10])
set(gca, 'XTick', 4:2:10)
See also get(gca) and get(gcf) for other properties to change.
For help on any of these functions, do, for example, help errorbar.
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