HP 48G Linear Regression Best Fit Line
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12-23-2021, 01:07 PM
Post: #57
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RE: HP 48G Linear Regression Best Fit Line
(12-23-2021 12:41 PM)MNH Wrote:(12-23-2021 04:13 AM)Rodger Rosenbaum Wrote: The HP48 and descendants come through again! I'm glad it all worked out--you'll be the envy of the other guys you work with. :-) When you execute ORTH the first number (.008321172 for the data we've been testing with) is the slope. The angle the line makes with the x axis is just the atan of the slope. Is your "azimuth" the angle with the y axis? In that case simply calculate atan(1/slope). (12-23-2021 12:41 PM)MNH Wrote: I have a question unrelated to the above. What does the data on stack level 3 mean? The data is placed on the stack after selecting right-shift, STAT, Fit data..., Linear Fit.It's because that thing on the stack is an algebraic object (its type = 9). |
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