about data format in R
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 <chocold12 at 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$Date, format = "%m/%d/%Y-%H:%M:%S") : 'origin' must be supplied On Fri, Dec 30, 2016 at 11:23 AM, Rui Barradas <ruipbarradas at sapo.pt> wrote:
Hello, Have you tried df$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.