Displaying 4 results from an estimated 4 matches for "cmedv".
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2010 Jul 29
1
Crash report: projection pursuit & predict
...ntu and the same problem occurred. By the way, right before Rgui shuts down, the pop-up window suggests it's a runtime error in C++.
Here are the codes that cause the crash,
library(mlbench)
data(BostonHousing2)
BH = BostonHousing2[,-c(1:5)]
dat1 = BH[1:200,]
dat2 = BH[201:400,]
mod = ppr(log(cmedv)~., data=dat1, optlevel=0, nterms=2, max.terms=5)
pred = predict(mod, newdata=dat2)
Thks.
HT
> sessionInfo()
R version 2.11.1 (2010-05-31)
i386-pc-mingw32
locale:
[1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252 LC_NUME...
2018 Jan 20
2
Paquete pdp
...razón del error. En el paquete pdp no especifica que sea solo para RF,
aunque en los ejemplos que encontré nunca eran de boosted ... Solo de
RF y SVM.
Gracias,
Manuel
library(pdp)
data (boston) # load the boston housing data
set.seed(101) # for reproducibility
boston.rf <- randomForest(cmedv ~ ., data = boston)
# Partial dependence of cmedv on lstat and rm
pd <- partial(boston.rf, pred.var = c("lstat", "rm"), chull = TRUE)
head(pd) # print first 6 rows
#> lstat rm yhat
#> 1 7.5284 3.66538 24.13683
#> 2 8.2532 3.66538 23.24916
#> 3...
2018 Jan 17
4
Random Forests
Buenas tardes a todos. El paquete randomForest tiene la función
treesize, que es el nº de nodos. Me dan valores realmente elevados (en
torno a 1000), y eso me parece extraño. ¿sabéis si es así?
Gracias,
Manuel
--
Dr Manuel Mendoza
Department of Biogeography and Global Change
National Museum of Natural History (MNCN)
Spanish Scientific Council (CSIC)
C/ Serrano 115bis, 28006 MADRID
Spain
2004 Nov 18
1
Method dispatch S3/S4 through optimize()
...her than by name before the setMethod().
When called from within functions passed as the f= argument to optimize,
the S3 generics for det() and chol() get picked up, not the S4 generics
for the S4 SparseM classes. This looks for instance like (from
example(boston)):
> gp2 <- lagsarlm(log(CMEDV) ~ CRIM + ZN + INDUS + CHAS + I(NOX^2) + I(RM^2)
+ + AGE + log(DIS) + log(RAD) + TAX + PTRATIO + B + log(LSTAT),
+ data=boston.c, nb2listw(boston.soi), method="SparseM")
matrix.csr
Error in chol(tmp1) : non-numeric argument to chol
(this is the error message in chol.R in base). tmp1...