Hello,
What I did was:
DF <- read.table(text = "
date evap precip intercept
10/01/1995-00:00:00 1.5 2 0.2
10/01/1995-12:00:00 1.7 2.2 0.1
10/02/1995-00:00:00 1.5 1.8 0.3
", header = TRUE, stringsAsFactors = FALSE)
str(DF)
DF$date <- as.POSIXct(DF$date, format = "%m/%d/%Y-%H:%M:%S")
str(DF)
And it worked with no errors.
Rui Barradas
Em 30-12-2016 18:47, Sarah Goslee escreveu:
Probably you need to use
file1 <- read.table('df', header=TRUE, stringsAsFactors=FALSE)
str(file1)
generally shows you all sorts of useful things about the file you have
just imported into R.
Sarah
On Fri, Dec 30, 2016 at 1:37 PM, lily li <chocol...@gmail.com> wrote:
Hi Rui,
Thanks for your reply. When I read in data using my code, the first column
ranges from 0 to 1. So when I use the code you wrote, it shows the error
message:
Error in as.POSIXct.numeric(DF$Date, format = "%m/%d/%Y-%H:%M:%S") :
'origin' must be supplied
On Fri, Dec 30, 2016 at 11:23 AM, Rui Barradas <ruipbarra...@sapo.pt> wrote:
Hello,
Have you tried
df$date <- as.POSIXct(dat$date, format = "%m/%d/%Y-%H:%M:%S")
?
Hope this helps,
Rui Barradas
Em 30-12-2016 17:40, lily li escreveu:
Hi R users,
I'm trying to read in data, and then plot time series data. However, I
have
some problems. In my dataset, the first column represents time, and in the
format:
mm/dd/yyyy-hr:min:sec; For example, 10/01/1995-00:00:00,
10/01/1995-06:00:00, etc.
df:
date evap precip intercept
10/01/1995-00:00:00 1.5 2 0.2
10/01/1995-12:00:00 1.7 2.2 0.1
10/02/1995-00:00:00 1.5 1.8 0.3
...
My code is like this
file1 = read.table('df', head=T)
When I read in data, I found that it read incorrectly. How to format when
read in data? Thanks.
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