predict function

I am using R to do a loess normalisation procedure.
In 1.5.1 I used the following commands to normalise the variable "logratio",
over a 2d surface (defined by coordinates x and y):
array <- read.table("121203B_QCnew.txt", header=T, sep="\t")
array$logs555<-log(array$s555)/log(2)
array$logs647<-log(array$s647)/log(2)
array$logratio<-array$logs555-array$logs647
array$logav<-(array$logs555+array$logs647)/2
library(modreg)
loess2d<-loess(logratio~x+y,data=array)
array$logratio2DLoeNorm <-array$logratio - predict.loess(loess2d, array)
However in 1.8.1 all goes well until the last step when I get an error:

Error: couldn't find function "predict.loess"

Can anyone help ?

Thomas

I am using R to do a loess normalisation procedure.
In 1.5.1 I used the following commands to normalise the variable "logratio",
over a 2d surface (defined by coordinates x and y):

array <- read.table("121203B_QCnew.txt", header=T, sep="\t")
array$logs555<-log(array$s555)/log(2)
array$logs647<-log(array$s647)/log(2)
array$logratio<-array$logs555-array$logs647
array$logav<-(array$logs555+array$logs647)/2
library(modreg)
loess2d<-loess(logratio~x+y,data=array)
array$logratio2DLoeNorm <-array$logratio - predict.loess(loess2d, array)

However in 1.8.1 all goes well until the last step when I get an error:

Error: couldn't find function "predict.loess"

Can anyone help ?
Use predict() instead of predict.loess() (the method is hidden in a 
namespace, you should use the generic function).

Uwe Ligges
You can't use this anymore.  The function predict() has a method
for loess objects, but there is no longer an available function
called "predict.loess".   So just replace "predict.loess"
with "predict".

I am using R to do a loess normalisation procedure.
In 1.5.1 I used the following commands to normalise the variable "logratio",
over a 2d surface (defined by coordinates x and y):

array <- read.table("121203B_QCnew.txt", header=T, sep="\t")
array$logs555<-log(array$s555)/log(2)
array$logs647<-log(array$s647)/log(2)
array$logratio<-array$logs555-array$logs647
array$logav<-(array$logs555+array$logs647)/2
library(modreg)
loess2d<-loess(logratio~x+y,data=array)
array$logratio2DLoeNorm <-array$logratio - predict.loess(loess2d, array)
However in 1.8.1 all goes well until the last step when I get an error:

Error: couldn't find function "predict.loess"

Can anyone help ?

Thomas

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