HI John,

I used my self for one of my PhD thesis papers a combination of R functions (based on conditional and mixed-conditional logistic regression from coxme r package) and QGIS/GRASS interfaces to model and get several variables, respectively, at the point and path level analysis, not step level.

So far I did not find any specific tool...

However I believe that you may find some guidance and partial answers in some of the following papers that I attached for you (I will send them directly to you).

Good work

Filipe   

Hi Felipe,

Thank you for sending these papers. I think they will prove very useful to me. I'll keep doing some research before I devote too much time to developing my own step-selection code. It is kind of surprising to me that no one has developed an r package to automate an entire step selection analysis on GPS collar data.

John

Hi John,

I am also looking for an R package that includes step selection functions and was also surprised by the lack thereoff. I did come across the Geospatial modelling environment (function movement.ssfsim1 - http://www.spatialecology.com/gme/movementssfsim1.htm) which can be run through R, although I am not sure on the specifics (I did find a PDF on this online somewhere in the past). Filipe, could I also get hold of the papers that you sent John? If any of you do find an automated R package that does this could you pass on the information, will definitely save writing the code myself.

Thanks

Craig  

Hi Craig,

I am not currently analyzing step selection functions, rather I did path selection functions in one of my PhD papers (you can see it from my personal research gate page) and for the generation of random paths (similar to the observed ones in length and shape) I also use the shiftrotate function from the GME environment!

Meanwhile, if I found something I will let you know.

I will send directly to you the papers that I send to John.

Best Regards

Filipe  

Hello guys,

its been a while but im also currently looking for  a package to perform step selection function to reveal geese habitat selection. Does any of you know of a package now, or, did you write a code to perform random trajectories as described in the step-selection function that might be useful also for me?

Many thanks,

Yaara

This might get you the answer.

http://animove.org/software-and-data/software/

the 'amt' package in R will do just that, see this preprint: Preprint Animal Movement Tools (amt): R-Package for Managing Tracking...

awesome, thanks for hint to the amt package Jakob!

As it just came out recently is there maybe also a R-tool for path selection functions ( PathSFs) out there somewhere?

Thanks for sharing the preprint of the 'amt' package Jakob. This package will be very useful !!