search for: inflexions

Displaying 4 results from an estimated 4 matches for "inflexions".

Did you mean: inflexion
2017 Jul 06
3
calcular punto de inflexion
Buenas, ¿Cómo calculariais el punto de inflexion de esta curva marcado en rojo? [X] He probado de la siguiente manera: 1- Haciendo la segunda derivada:No me sirve, porque m edetecta muchas veces esos casos 2- Mirando si el siguiente valor es mayor que el anterior. No me vale, ya que si hay ruido, no lo va a detectar. 3. Mirando que el punto siguiente crezca respecto al anterior. No me
2010 Aug 06
1
Error on random forest variable importance estimates
Hello, I am using the R randomForest package to classify variable stars. I have a training set of 1755 stars described by (too) many variables. Some of these variables are highly correlated. I believe that I understand how randomForest works and how the variable importance are evaluated (through variable permutations). Here are my questions. 1) variable importance error? Is there any ways
2008 Aug 07
1
recursive root finding
Dear list, I've had this problem for a while and I'm looking for a more general and robust technique than I've been able to imagine myself. I need to find N (typically N= 3 to 5) zeros in a function that is not a polynomial in a specified interval. The code below illustrates this, by creating a noisy curve with three peaks of different position, magnitude, width and
2000 Sep 28
0
Occams Razor Was: lm -- significance of x ...
...algaard BSA <p.dalgaard at biostat.ku.dk> writes: > > > I think Occam/Ockham himself wrote in Latin. By my failing memory, the > > quote is > > > > "Entia non runt multiplicanda praeter necessitam" > > > > give or take a couple of incorrect inflexions. I.e. "Entities should > > not multiply unless necessary" -- do not invent more elaborate > > explanations than what is necessary to explain the facts. > > A little web search gave the following at > http://www2.jonction.net/~ziem/occam.html > > "Plurali...