A good choice might be to store your data in objects of class
SpatialLinesDataFrame
Then you can assign any attributes you want to each line, such as your
vessel, type, destination, or status.
This will make it relatively easy to, for example, plot subsets of tracks
specified by different attr
There are several packages for track data on CRAN and they don't all
force the data to have "specific variables" beyond position,
date-time, track ID. With trip you can do this easily enough, but
depending on your needs adehabitatLT or move might be better. I wrote
trip so I know that you can do t
It is difficult to advise you when you don't provide reproducible data.
For example, you could include the first 6 lines of your data using
dput(head(mydata))
If you have GPS points stored as easting, northing, and if you have a
variable that identifies the vessel, and if your data are sorte
Hi professors
I'm finding the best package in R for manage a big database about vessels. I
need to divided the travel of each boat into tracks. I have GPS points.
I would join these points in a line on the map. I make that with the function
"lines", but I can't divided by vessel or by track,
I
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