mwege <mwege <at> zoology.up.ac.za> writes:
> I am trying to read my TDR data into R using the readTDR function for the
> diveMove package.
>
> > seal <- readTDR("file location and name here", dateCol=1, depthCol=3,
> > speed=FALSE, subsamp=1, concurrentCols=4:5)
>
> But I keep getting the following error:
> > Error: all(!is.na(time)) is not TRUE
>
> All my columns to have values in them (there are no empty records)
>
> The manual and vignette of the package diveMove doesnt give a proper
> description of how to read data into R. It only describes how to access the
> data in the system file that comes with the package.
> What am I doing wrong?
It's hard to answer this without a reproducible example, and it's
generally harder to get answers about less-used/more specialized
packages. I'm going to guess that at least some of your dates are
not in the same format as specified (from the manual page:
default is "%d/%m/%Y %H:%M:%S" --
you can change this with the 'dtformat' argument).
You shouldn't need to specify arguments to the function that
are the same as the defaults: I would expect that
seal <- readTDR("file location and name here",
subsamp=1, concurrentCols=4:5)
would work equally well (or poorly ...)
"%d/%m/%Y %H:%M:%S"
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