Hi David,
Thank you so much for your help and others. Here is the code.
balok <- read.csv("G:/A_backup 11 mei 2015/DATA (D)/1 Universiti Malaysia
Pahang/ISM-3 2016 UM/Data/Hourly Rainfall/balok2.csv",header=TRUE)
head(balok, 10); tail(balok, 10)
str(balok)
## Introduce NAs for
balok$Rain.mm2 <-
> On Jul 13, 2016, at 3:21 AM, roslinazairimah zakaria
> wrote:
>
> Dear David,
>
> I got your point. How do I remove the data that contain "0.0?".
>
> I tried : balok <- cbind(balok3[,-5], balok3$Rain.mm[balok3$Rain.mm==0.0?] <-
> NA)
If you had done as I suggested, the items with factor
Behalf Of
> roslinazairimah zakaria
> Sent: Wednesday, July 13, 2016 12:22 PM
> To: David Winsemius
> Cc: r-help mailing list
> Subject: Re: [R] Aggregate rainfall data
>
> Dear David,
>
> I got your point. How do I remove the data that contain "0.0?".
>
&
use `gsub()` after the `as.character()` conversion to remove
everything but valid numeric components from the strings.
On Wed, Jul 13, 2016 at 6:21 AM, roslinazairimah zakaria
wrote:
> Dear David,
>
> I got your point. How do I remove the data that contain "0.0?".
>
> I tried : balok <- cbind(ba
Dear David,
I got your point. How do I remove the data that contain "0.0?".
I tried : balok <- cbind(balok3[,-5], balok3$Rain.mm[balok3$Rain.mm==0.0?]
<- NA)
However all the Rain.mm column all become NA.
day month year Time balok3$Rain.mm[balok3$Rain.mm == "0.0?"] <- NA
1 30 7 200
> On Jul 12, 2016, at 3:45 PM, roslinazairimah zakaria
> wrote:
>
> Dear R-users,
>
> I have these data:
>
> head(balok, 10); tail(balok, 10)
>Date Time Rain.mm
> 1 30/7/2008 9:00:00 0
> 2 30/7/2008 10:00:00 0
> 3 30/7/2008 11:00:00 0
> 4 30/7/2008 12:00:00
Dear R-users,
I have these data:
head(balok, 10); tail(balok, 10)
Date Time Rain.mm
1 30/7/2008 9:00:00 0
2 30/7/2008 10:00:00 0
3 30/7/2008 11:00:00 0
4 30/7/2008 12:00:00 0
5 30/7/2008 13:00:00 0
6 30/7/2008 14:00:00 0
7 30/7/2008 15:00:00
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