R help - Mar 2005 - Reading data from "clipboard"

Dear List,

As a way to learn R, I am trying out some of the
examples shown in the Reference Cards.

I use the following to read a column of numbers from
Excel:

x <- read.delim("clipboard")

My questions are:

1. Why is it that the first number is omitted from the
selected data range?  How do I tell R to pick up the
first number as part of the entire selection?

2. The next thing I want to do once my data are read
in the way described above is

y <- ppoints(sort(x))

but I get the following:

Error in sort(x): 'x' must be atomic

What does 'atomic' mean in this context?  How do I
make 'x' atomic?

3. While I understand there are other ways to
accomplish the same thing, I seem to recall there is a
way to invoke within R a spreadsheet-like window for
data input, but I can't seem to locate the command for
the life of me.

Any help is appreciated.

> From: R_xprt_wannabe
> 
> Dear List,
> 
> As a way to learn R, I am trying out some of the
> examples shown in the Reference Cards.
> 
> I use the following to read a column of numbers from
> Excel:
> 
> x <- read.delim("clipboard")
> 
> My questions are:
> 
> 1. Why is it that the first number is omitted from the
> selected data range?  How do I tell R to pick up the
> first number as part of the entire selection?
It's probably because read.delim() has the argument `header' that is
TRUE by
default, so unless you set that to FALSE, it treats the first row as column
headers.

 
> 2. The next thing I want to do once my data are read
> in the way described above is
> 
> y <- ppoints(sort(x))
> 
> but I get the following:
> 
> Error in sort(x): 'x' must be atomic
> 
> What does 'atomic' mean in this context?  How do I
> make 'x' atomic?
read.delim() outputs a data frame, which is a collection of variables.  In
your case it's probably just one variable.  You can do x <- x[[1]] to
change
x into the first column of the data frame.

If you only have one column of data, scan() would be a better choice than
read.delim() (and friends).
 
> 3. While I understand there are other ways to
> accomplish the same thing, I seem to recall there is a
> way to invoke within R a spreadsheet-like window for
> data input, but I can't seem to locate the command for
> the life of me.
You're probably looking for data.entry().

Andy
 
> Any help is appreciated.
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! 
> http://www.R-project.org/posting-guide.html
> 
> 
>