Manual Function Fitting Task
A Manual Function Fitting Task is a function fitting task that is a manual computation task.
- AKA: Manual Regression.
- Example(s):
- Counter-Example(s):
- See: Linear Regression System.
References
2011
- (Allain, 2011) ⇒ Rhett Allain. (2011). “Linear Regression by Hand.” In: Wired, 2011-01-16
- QUOTE: It only makes sense. I did linear regression in google docs and I did it for python. But what if you neither of those? Can you do it by hand? Why yes. Suppose I take the same data from the pylab example and I imagine trying to add a linear function to represent that data. …
… you have to make up some criteria for choosing the best line. Commonly, it is chosen to pick the line such that the value of the sum of [math]\displaystyle{ d^2 }[/math] is minimized. … typically, the horizontal variable is your independent variable – so these might be some set values. The vertical data is typically the one with the most error (but not always). …
There. That is the the basic form of linear regression by hand. Note that there ARE other ways to do this – more complicated ways (assuming different types of distributions for the data). Also, the same basic idea is followed if you want to fit some higher order polynomial. Warning, it gets complicated (algebraically) real quick.
- QUOTE: It only makes sense. I did linear regression in google docs and I did it for python. But what if you neither of those? Can you do it by hand? Why yes. Suppose I take the same data from the pylab example and I imagine trying to add a linear function to represent that data. …