Hi all,
I am a complete novice to R. I have used Axivity AX3 accelerometers to physical activity and sleep data in preschool-aged children as part of my PhD research. However, I am struggling to run GGIR and was hoping somebody could trouble shoot my problem? I have installed GGIR package, told it where to find the data, and where to store the outputs. However, when it gets to Part 3, I receive an error message. I have attached it to this email.
Any ideas on how to solve this and just receive some basic wear time and total PA info would be greatly appreciated.
Thank you.
Best wishes,
Oliver