Displaying 4 results from an estimated 4 matches for "landform".
2011 May 06
1
replace NA
Hello all
I have a geology map that has three level, bellow
<-geology
lithology landscape landform
landform level is used as covariate (with codes=1,2,3,4,5) for training of neural network, but this level has missing data as NA.
I want to replace the missing data of landform level with 0 (zero). Finally, landform will have codes 0,1,2,3,4,5.
please help me
Thanks alot.
[[alternative H...
2012 Jul 09
3
Package 'MASS' (polr): Error in svd(X) : infinite or missing values in 'x'
..."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 missing values in 'x'
>
##Try with omit NA command
> Global <- polr(JVeg5 ~ Elevation + Lat_Y_pos + Coast_di...
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.
...et, 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
##from 100 to 600 (convergence at 550).
summary(model1)
##MuMIn
##dredge analysis
dredge1 <- dredge(model1)
#...
2006 Dec 01
1
memory problem
hi to all,
frustated for this error, to day i buy a 1 GB memory
slot for my laptop
now it have 1,28GB instead the old 512, but i've the
same error :-(
damn!damn!....how can i do?
repeat for a little area (about 20X20 km and res=20m)
it work fine!
have you any suggestion?
is ther a method for look if this error depend from my
ram or other....?
thanks foe any suggestion!
i need your help.