iv never written on a forum before but im stuck on my coursework.
my problem is such:
* i have a set of results for x and y with errors on each
* i need the gradient WITH AN ERROR for my lab project
* i can do error bars, R^2 values but not an error on the gradient
my data looks similar to below
x..................error in x..........y...................error in y
x1.................ex1.................y1.................ey1
x2.................ex2.................y2.................ey2
x3.................ex3.................y3.................ey3
x4.................ex4.................y4.................ey4
so i need a result that says "the gradient = (aNumber) plus or minus (anError)
please help me,
James
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