Dear helpeRs,
I am working with a dataframe that includes a column, "calendar",
used for plotting time series.
> class(dat$calendar)
[1] "POSIXt" "POSIXlt"
When I finish working, I save my data as a .csv file. When I read
the file in again, "calendar" is always a factor
> class(dat$calendar
quot;valley", "plot", "trt"),
> timevar="fame", direction="wide")
>
> Michael
>
>
> On 28 September 2010 12:17, Toby Gass
> wrote:
> > Hello, helpeRs,
> >
> > I've been trying, unsuccessfully, to change a da
Hello, helpeRs,
I've been trying, unsuccessfully, to change a dataframe from long to
wide format using reshape (the original). I would appreciate it if
someone could demonstrate the correct syntax. The script below will
create a toy example. The new wide data should have a column name
for
Hello, helpeRs,
I've been trying, unsuccessfully, to change a dataframe from long to
wide format using reshape (the original). I would appreciate it if
someone could demonstrate the correct syntax. The script below will
create a toy example. The new wide data should have a column name
for
$doy,origin='2009-12-31')
>
> to get a similar Date object.
>
> - Phil
>
>
> On Fri, 27 Aug 2010, Toby Gass wrote:
>
> > Hello, helpeRs,
> >
> > I have a vector of numbers from 1-365 (days of the year) th
Hello, helpeRs,
I have a vector of numbers from 1-365 (days of the year) that I would
like to convert to a date. There are no NA's and no missing values.
I did not insert leading zero's for numbers less than 100.
Using the syntax:
dat$doy.1 <- as.numeric(format(dat$doy, "%j" ))
I get the fol
It works perfectly now. Thank you all.
Toby
On 18 Aug 2010 at 15:04, Erik Iverson wrote:
>
>
> Toby Gass wrote:
> > Thank you for the suggestions for the more efficient code. The
> > problem remains, however, that the final dataframe does not contain
> > the
e.
Thank you.
Toby
On 18 Aug 2010 at 13:49, Erik Iverson wrote:
>
>
> Toby Gass wrote:
> > Dear helpeRs,
> >
> > I am attempting to read in a series of csv files so I can bind them
> > into one large dataframe. I have written the following script:
&
Dear helpeRs,
I am attempting to read in a series of csv files so I can bind them
into one large dataframe. I have written the following script:
test <- list.files(".", pattern = "csv") #lline 1
imp <- list()#line 2
for (i in 1:length(test)) {
e the toy dataframe a
bit larger.
Thanks again for the assistance.
Toby
On 12 Aug 2010 at 16:39, David Winsemius wrote:
>
> On Aug 12, 2010, at 4:06 PM, Toby Gass wrote:
>
> > Thank you all for the quick responses. So far as I've checked,
> > Marc's solution
ll the other measurements, possibly with
positive values, taken on the same day.
Thank you again for your efforts.
Toby
On 12 Aug 2010 at 14:32, Marc Schwartz wrote:
> On Aug 12, 2010, at 2:24 PM, Marc Schwartz wrote:
>
> > On Aug 12, 2010, at 2:11 PM, Toby Gass wrote:
> >
>
Dear helpeRs,
I have a dataframe (14947 x 27) containing measurements collected
every 5 seconds at several different sampling locations. If one
measurement at a given location is less than zero on a given day, I
would like to delete all measurements from that location on that day.
Here is a t
Dear R helpers,
I have a dataframe (test1) containing the time of sunrise and sunset for each
day of the year
for 3 years. I have another dataframe (test2) containing measurements that are
taken every
15 minutes, 24/7. I would like to extract all rows from test2 that occur
between sunrise an
problem
in the past year.
Toby
- Original Message -
From: "Duncan Murdoch" <[EMAIL PROTECTED]>
To: "Toby Gass" <[EMAIL PROTECTED]>
Cc:
Sent: Tuesday, June 24, 2008 6:27 PM
Subject: Re: [R] Error message: Bad value
| On 24/06/2008 3:12 PM, Toby Gass wrote:
tml
I do not need a response, unless there is a preventative
measure,
but thought I would bring this to your attention.
Thank you,
Toby
Toby Gass
Graduate Degree Program in Ecology
Department of Forest, Rangeland, and Watershed Stewardship
Warner College of Natural Resources
Colorado State Univers
t;trt",1:2))
pre.post <- gl(2,9,length = 108, label = c("pre","post"))
response <- runif(108, min = -28, max = -25)
help <- data.frame(tree,month,trtmt,pre.post, response)
Thank you in advance for your assistance.
Toby Gass
Graduate Degree Program in Ecolog
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