CIEG 675 IN CLASS EXERCISE ON STATS

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CIEG 675 IN CLASS EXERCISE ON STATS
Suppose I have ten data sets all stored in a
matrix where each column is a data set and each
row is a point within the data set (an Nx10)
matrix. I wish to make a plot of the mean and
error bar for each data set as a function of its
index. The error bar is defined as 1 standard
deviation either side of the mean. Develop the
m-file code lines that can do this assuming the
matrix is the variable X.