Displaying 3 results from an estimated 3 matches for "c_cdqrls".
2013 Apr 23
2
Help: Where can I find the code for 'C_Cdqrls'?
Dear all,
I’m not sure if it is O.K. to ask this question here.
But where can I find the code for the function ‘C_Cdqrls’ which is called by the R function ‘lsfit‘.
Thank you all.
Sorry for being naïve if so.
--------------------
Ziqiang Zhao
2013-04-23
[[alternative HTML version deleted]]
2020 Nov 23
0
Different results from 'lm' for different 32-bit Windows versions
...)
Coefficients:
(Intercept) x
0 1
In R 3.2.4 Revised on gets the result
Call:
lm(formula = y ~ x, data = data.frame(x = c(1, 2, 3), y = c(1,
2, 3)))
Coefficients:
(Intercept) x
-4.441e-16 1.000e+00
Both versions behave identically until the call C_Cdqrls in the fit.lm function. What causes this changed behavior?
Best regards,
Andreas Fromkorth.
Next PLA 3.0 Trainings (Business classes): www.bioassay.de/training <http://www.bioassay.de/training>
_____________________________________________________
Dr. Andreas Fromkorth
Project Manager
andre...
2012 Nov 06
1
glm fitting routine and convergence
What kind of special magic does glm have?
I'm working on a logistic regression solver (L-BFGS) in c and I've been
using glm to check my results. I came across a data set that has a very
high condition number (the data matrix transpose the data matrix) that when
running my solver does not converge, but the same data set with glm was
converging ( I love R :) ). I noticed that glm using