Displaying 3 results from an estimated 3 matches for "coast_dist".
2012 Jul 09
3
Package 'MASS' (polr): Error in svd(X) : infinite or missing values in 'x'
...Jdata)
> names(Jdata)
[1] "POINTID" "Lat_Y_pos" "JVeg5" "Subregion" "Rock_U_Nam"
"Rock_Name" "Elevation" "Slope" "Aspect" "Hillshade"
"Stream_dist" "Coast_dist" "Coast_SE"
[14] "Coast_E" "Wind_310" "TPI" "Landform"
>
> Global <- polr(JVeg5 ~ Elevation + Lat_Y_pos + Coast_dist + Stream_dist,
> data=Jdata)
>
> summary(Global)
Error in svd(X) : infinite or missi...
2012 Oct 07
2
gam error message: matrix not +ve definite
...acity.
The version of mgcv(1.7-21) and R (2.15.1) is the same on both machines.
The data set to which the model if fitted is too large to post here but it
contains 2209 observations, and the model is of the form: gam(Response~Year
+ s(Dayofyear,k=5,bs='cc') + s(Longitude,Latitude,k=4) +
s(Coast_distance,k=4), family=Gamma('log'), data=dat, gamma=1.4)
I realize this is a very particular question, but any help would be really
appreciated.
Thanks,
Dan.
--
View this message in context: http://r.789695.n4.nabble.com/gam-error-message-matrix-not-ve-definite-tp4645329.html
Sent from the R...
2012 Jul 11
1
Package MuMIn (dredge): Error in ret[, ] <- cbind(x, se, rep(if (is.null(df)) NA_real_ else df, : number of items to replace is not a multiple of replacement length.
...eader=T)
attach(Jdata)
names(Jdata)
##NNET
##MULTINOMIAL LOGISTIC REGRESSION
##multinom(formula, data, weights, subset, na.action, contrasts = NULL,
##Hess = FALSE, summ = 0, censored = FALSE,
##model = FALSE, ...)
##Full Model
##14 variables
model1 <- multinom(JVeg5~Elevation + Lat_Y_pos + Coast_dist + Coast_SE +
Coast_E + Stream_dist + Subregion + Rock_Name + Slope + Aspect + Hillshade +
Wind_310 + TPI + Landform, data=Jdata, maxit=600)
##with 14 variables, maximum iterations reached without convergence,
therefore...
##have added maxit=600 argument, this increases maximum number of iterations...