Fitting a line to data | Regression | Probability and Statistics | Khan Academy
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- เผยแพร่เมื่อ 20 ส.ค. 2024
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this tutorial is more like a tutorial on how to use excel
7:42 This right here is an extrapolation
This didn't really teach me how to fit a line to data... more of just learning to use Excel. I barely learned anything, but hopefully the upcoming videos on the course I'm learning on prove to be more useful.
+Loreen Greyson Start with basic instruction. I encourage my students to go back to a point where they were lost and start there.
Thank you for the time you take making these videos, been watching them for a while, very very interesting. Your very cativating... Cheers
Cavitating or captivating? I think the latter.
This is Amazing!
please teach how to fit line using gradient descent
You can fit data to lots of little connected lines and curve the graph.
Here's some Mathematica code that shows how.
Plot[Piecewise[{{((0.5 - x)/
0.5) (x/2) + (x/0.5) (0.25 + (x - 0.5) 1.1),
x 0.5 && x 0.75}}] , {x,
0, 1}]
Has anyone got a suggestion of a name for this type of curve as it is currently unnamed and I have no doubt it could prove useful for curve fitting and in 3d with more connected lines the same principle remains for turning a triangle mesh into a curved surface so this type of maths will almost certainly be used in the future? If this type of curve becomes popular your name for it might stick so go on have a go and lets see what sticks. also in terms of data fitting this type of curve can be more straight where it needs to be and more curved where it needs to be also as to get a better general fit to some data types.
Spreadsheet usage is essential in the marketplace. Please learn to use the software.
thanks for the excel tutorial!
Minimize square of distance
Good job^^ Keep it up
can we have help on how to do this on numbers for mac???
But say he computer doesn't just give you the equation...so how do you find the equation of the line by hand?
How did you move these columns(N,O) with your keyboard ?
jk
jk