import_mhealth_csv imports the raw multi-channel accelerometer data stored in mHealth Specification. Note that this function will fail when loading data that have size too big to fit in the memory. For large data file, please use import_mhealth_csv_chunked to load.

import_mhealth_csv(filepath)

## Arguments

filepath string. The filepath of the input data.

## Value

dataframe. The imported multi-channel accelerometer signal, with the first column being the timestamps in POSXlct format, and the rest columns being accelerometer values in $$g$$ unit.

## How is it used in MIMS-unit algorithm?

This function is a File IO function that is used to import data stored in mHealth Specification during algorithm validation.