Hello all,
First off, I am using R version 2.13.0 in Ubuntu.
I have read previous posts in the R mailing list on saving models for
later use, and the responses indicate using the R save() function to
save a model and then using load() to load it is one way to go.
However, when I use the save() function to save a model to a file, and
then try to load it using load(), the loaded "model" is just an object
of class Character. Here is the relevant R code:
#######creating the model#########
data <- read.table("../synthetic_data_4.csv", header=TRUE, sep=",")
data <- data.frame(data)
data$type <- factor(data$type)
pcrmodel <- pcr(formula=count~week+type+total, data=data, x=TRUE, y=TRUE)
#########getting summary of model########
summary(pcrmodel)
Output:
Data: X dimension: 318 4
Y dimension: 318 1
Fit method: svdpc
Number of components considered: 4
TRAINING: % variance explained
1 comps 2 comps 3 comps 4 comps
X 99.57 100.00 100.00 100.00
count 13.70 16.01 16.17 16.54
########saving the model#########
save(pcrmodel, file='model.rda')
########loading the model#########
model <- load('model.rda')
########getting summary of model after loading###########
summary(model)
Output:
Length Class Mode
1 character character
##################################
What am I doing wrong? Or is this not the correct way to save a model
to be used later? Thanks,
Alison
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