R help - Mar 2011 - problem in simple saving and loading data frames

Dear all

My dataframe has > 80,000 variables which I can not everytime load into R
using *.txt files (read.table option), cost me time and sometime computer
decomes not responsive. So I need a way to save my dataframe in my
workdirectory as such.

Execuse me if the problem is too simple. I tried the following, I do not
know what is wrong with it:

Example data:
 x <- 1:10
y <- 21:30
z <- 31:40
 df2 <- data.frame(x,y, z)
save(df2, file="df2.RData")
My trials

# trying to load
 data(df2)
Warning message:
In data(df2) : data set 'df2' not found
data(df2.RData)
Warning message:
In data(df2.RData) : data set 'df2.RData' not found

 data("df2.RData")
Warning message:
In data("df2.RData") : data set 'df2.RData' not found

load(df2)
Error in load(df2) : bad 'file' argument

load(df2.RData)
Error in load(df2.RData) : object 'df2.RData' not found

Thank you
Ram

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On Mar 28, 2011, at 11:20 AM, Ram H. Sharma wrote:
> Dear all
>
> My dataframe has > 80,000 variables which I can not everytime load  
> into R
> using *.txt files (read.table option), cost me time and sometime  
> computer
> decomes not responsive. So I need a way to save my dataframe in my
> workdirectory as such.
>
> Execuse me if the problem is too simple. I tried the following, I do  
> not
> know what is wrong with it:
>
> Example data:
> x <- 1:10
> y <- 21:30
> z <- 31:40
> df2 <- data.frame(x,y, z)
> save(df2, file="df2.RData")
> My trials
>
> # trying to load
> data(df2)
The data() function load from package libraries.
> Warning message:
> In data(df2) : data set 'df2' not found
> data(df2.RData)
> Warning message:
> In data(df2.RData) : data set 'df2.RData' not found
>
> data("df2.RData")
> Warning message:
> In data("df2.RData") : data set 'df2.RData' not found
>
> load(df2)
> Error in load(df2) : bad 'file' argument
>
> load(df2.RData)
> Error in load(df2.RData) : object 'df2.RData' not found
Without quotes around df2.Rdata,  R thinks you want a file whose name  
can be found in a character vector of that name that is already in the  
workspace.

try:

load(file="df2.RData")

-- 

David Winsemius, MD
West Hartford, CT