Part 4 - Error in round(S[j, colid])

[Natascja Di Cristofaro]

Hello, 

I'm running analysis on non 24-hour wear files (participants only wear the device during waking hours) and using a guider. I'm getting the following error:

Error in round(S[j, colid]) : 

  non-numeric argument to mathematical function

Has anyone else encountered this? I've attached the code I'm running. Is this error because something I've written in my code or in the guider?

Thanks, 

Natascja 

[Vincent van Hees]

Hi Natascja,

This indicates that there may be an issues with the ID number in the sleeplog.

Please check that:

- Argument colid is correctly specified

- ID numbers as stored in the part 2 report match the format of the ID numbers in your sleeplog (file specified with loglocation).

What also helps to investigate this is trying to run GGIR function g.loadlog with you sleeplog first. This would allow you to check that the sleeplog is correctly formatted.

See corresponding documention in https://cran.r-project.org/web/packages/GGIR/GGIR.pdf.

Best, Vincent

Dr. Vincent van Hees

Independent consultant

https://accelting.com/

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[Natascja Di Cristofaro]

Hi Vincent, 

Thanks for your response, I realized I had sleeplogidnum=TRUE whereas my participant ID's include characters and not just number. I've changed to sleeplogidnum=FALSE, and it ran perfectly. 

I have a further question about sleep logs, is there a way to use the sleep log for daytime naps or device removal? 

Thanks, 

Natascja

[Vincent van Hees]

Hi Natascja,

Great to hear you managed to resolve the issue.

Using sleep log for daytime naps or device removal is not possible at the moment. In the upcoming months I plan to enhance the code such that it can export the estimates sustained inactivity bouts as a candidate list of 'naps'.  This is not what you need, but it could be a first step towards fusing in nap-diary and nonwear-diary information. If you are interested in supporting this development with your own time and/or financially to pay for my time then let me know and we can chat about this.

Thanks,

Vincent

Dr. Vincent van Hees

Independent consultant

https://accelting.com/

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