- #1
jamesson
- 59
- 3
Howdy folks
I've gotten a number of answers to this in various fora, some contradictory.
I need to do 3 things to a set of datapoints in 3space (X,y, and z real values).
1)Test for linearity (pearson's R?).
2)If passed, find line of best fit (SSE?)
3)See if line of best fir is near parallel to any of the axes (Slope < whatever or > whatever?)
Some have said that I can simply do pearson's r twice, but others have disagreed without providing a counterargument.
If possible, please give equations or expressions.
Many thanks in advance for any assistance
Joe
I've gotten a number of answers to this in various fora, some contradictory.
I need to do 3 things to a set of datapoints in 3space (X,y, and z real values).
1)Test for linearity (pearson's R?).
2)If passed, find line of best fit (SSE?)
3)See if line of best fir is near parallel to any of the axes (Slope < whatever or > whatever?)
Some have said that I can simply do pearson's r twice, but others have disagreed without providing a counterargument.
If possible, please give equations or expressions.
Many thanks in advance for any assistance
Joe