Hello,
Like this?
data1 <- read.table(text = "
01:23:40 5
01:23:45 10
01:23:50 12
01:23:55 7
")
data2 <- read.table(text = "
01:23:42
01:23:47
01:23:51
01:23:54
")
approx(as.POSIXct(data1$V1, format = "%H:%M:%S"), y = data1$V2, xout =
as.POSIXct(data2$V1, format = "%H:%M:%S"))
Hope this helps,
Rui Barradas
Em 16-01-2013 08:52, e-letter escreveu:
Readers,
Am trying to use the function 'approx' to interpolate time series data sets:
data1:
01:23:40 5
01:23:45 10
01:23:50 12
01:23:55 7
data2:
01:23:42
01:23:47
01:23:51
01:23:54
The objective is to obtain interpolated values of 'data1' column 2 (5,
10, 12, 7) for the times shown in data2. Tried the following command
but received the error shown:
data3<-approx(data1,xout=data2)
Error in approx(data1, xout = data2) :
(list) object cannot be coerced to type 'double'
What is my mistake please?
--
r2151
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______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
