Hi. I want to use errorbar(x,y,std) to get the error bar. I was wondering if x and y are vectors with 10 data point each. how do I write the code for std to have the same matching (10X1) dimension. Thanks
MATLAB: Problem with error bar
error bar
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Not silly at all, however it may not produce the result you want.
It might be more appropriate to calculate the errors as the standard error of the mean (S.E.M.) 
:
: err = 2*(std(y,[],2)/sqrt(size(y,2))); % 2 x Standard Error Of The Mean
then:
figureerrorbar(x, mean(y,2), err) % 2 standard errors of the mean
rather than the standard deviation of the observations themselves.
Using my magic ball I will try to answer the question with one example made by me and based on the reference at the bottom
fruit = [2 5 6 7]h=bar(fruit)l={'apples', 'oranges', 'strawberries', 'pears'}y=get(h,'Ydata');x=get(h,'Xdata');text(x-x(1)/3,y/2,l,'FontSize',18)
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