Hello,
I have some question on chron
I currently doing this
t1 <- chron(,"11:30:00")
t2 <- chron(,"11:45:00")
tt <- seq(t1,t2,by=times("00:00:01"))
tt has 901 values (15 minutes * 60 secs) and then
x1 <- rnorm(1:901)
x2 <- rnorm(1:901)
x3 <- rnorm(1:901)
df <- data.frame(tt, x1, x2, x3)
I would like to write a function such that I can divide df vector into any
interval,
For e.g 10 secs, 5 secs, 15 secs etc..
How can I achieve this. Is there a way to subtract seconds on a chron object
For e.g.
#This should subtract 20 seconds, but doesn't work, looks like it is
subtracting days
newtime <- df$tt - 20
Please help.
Rusty
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