On 8/3/06, John Kane <[EMAIL PROTECTED]> wrote:
>
> --- Don MacQueen <[EMAIL PROTECTED]> wrote:
>
> > You don't need to find out the column index. This
> > works:
> >
> > Df[5,'bat'] <- 100
> >
> > -Don
> >
>
> Thanks, I'd tried
> Df[5, bat] <- 100 :(
>
> I never thought of the ' ' being neede
--- Don MacQueen <[EMAIL PROTECTED]> wrote:
> You don't need to find out the column index. This
> works:
>
> Df[5,'bat'] <- 100
>
> -Don
>
Thanks, I'd tried
Df[5, bat] <- 100 :(
I never thought of the ' ' being needed.
> At 5:01 PM -0400 8/2/06, John Kane wrote:
> >Simple problem bu
You don't need to find out the column index. This works:
Df[5,'bat'] <- 100
-Don
At 5:01 PM -0400 8/2/06, John Kane wrote:
>Simple problem but I don't see the answer. I'm trying
>to clean up some data
>I have 120 columns in a data.frame. I have one value
>in a column named "blaw" that I wan
On Wed, 02 Aug 2006 17:12:53 -0400, Chuck Cleland wrote:
> Why not do it this way?
>
> Df$bat <- replace(Df$bat, Df$bat >=50, 100)
Is that any different, performancewise, than the following?
Df$bat[Df$bat >= 50] <- 100
Gerald Jansen
...
John Kane wrote:
> Simple example
>
> cat <- c( 3,5,6,8
--- roger koenker <[EMAIL PROTECTED]> wrote:
> it is the well-known wicked which problem: if you
> had (grammatically
> incorrectly)
> thought "... which I want to change" then you might
> have been led
> to type (in another window):
>
> ?which
>
> and you would have seen the light. M
--- Chuck Cleland <[EMAIL PROTECTED]> wrote:
> John Kane wrote:
> > Simple problem but I don't see the answer. I'm
> trying
> > to clean up some data
> > I have 120 columns in a data.frame. I have one
> value
> > in a column named "blaw" that I want to change.
> How do
> > I find the coordinates
John Kane wrote:
> Simple problem but I don't see the answer. I'm trying
> to clean up some data
> I have 120 columns in a data.frame. I have one value
> in a column named "blaw" that I want to change. How do
> I find the coordinates. I can find the row by doing a
> subset on the data.frame but ho
it is the well-known wicked which problem: if you had (grammatically
incorrectly)
thought "... which I want to change" then you might have been led
to type (in another window):
?which
and you would have seen the light. Maybe that() should be an alias
for which()?
url:www.econ.uiu
--- jim holtman <[EMAIL PROTECTED]> wrote:
> ?which
>
> > which(Df >= 50, arr.ind=T)
> row col
> 5 5 4
I knew it was going to be blinding obvious! I even
read
?which somehow misunderstood arr.ind.
Thanks again.
>
> On 8/2/06, John Kane <[EMAIL PROTECTED]> wrote:
> >
> > Simple probl
?which
> which(Df >= 50, arr.ind=T)
row col
5 5 4
On 8/2/06, John Kane <[EMAIL PROTECTED]> wrote:
>
> Simple problem but I don't see the answer. I'm trying
> to clean up some data
> I have 120 columns in a data.frame. I have one value
> in a column named "blaw" that I want to change. How
Simple problem but I don't see the answer. I'm trying
to clean up some data
I have 120 columns in a data.frame. I have one value
in a column named "blaw" that I want to change. How do
I find the coordinates. I can find the row by doing a
subset on the data.frame but how do I find out here
"blaw "
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