Thank you for the help everyone, it has been a very helpful but steep
learning curve for me. I have ended up doing a loop as suggested by David
as I could understand this a bit better and seems can apply more generally.
I have set out my solution below in case that helps anyone.
I am interested th
Adam Lawrence gmail.com> writes:
>
> I am hoping someone can help me with a bus stop sequencing problem in R,
> where I need to match counts of people getting on and off a bus to the
> correct stop in the bus route stop sequence. I have tried looking
> online/forums for sequence matching but see
Homework? The list has a no homework policy - but perhaps I'll be forgiven por
posting hints.
In general terms, this is how I appraoched the problem:
* Loop through the rows of stop_onoff - for (idx in ...someething...) {...
* For each row, find the first of "ref" in a suitably filtered subset of
s
Try dtw. First convert ref to numeric since dtw does not handle
character input. Then align using dtw and NA out repeated values in
the alignment. Finally zap ugly row names and calculate loading:
library(dtw)
s1 <- as.numeric(stop_sequence$ref)
s2 <- as.numeric(factor(as.character(stop_onoff$r
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