g.readaccfile: Generic functiont to read large blocks of accelerometer data
In PeteJWatson/ggircal: Raw Accelerometer Data Analysis

Description Usage Arguments Value Author(s) Examples

The function is used by g.getmeta to read large blocks of the accelerometer file, which are processed and then deleted. This is needed for memory management.

1 2	g.readaccfile(filename,blocksize,blocknumber,selectdaysfile=c(),filequality, decn,dayborder,ws)

`filename`	filename
`blocksize`	Size of blocks (in file pages) to be read
`blocknumber`	Block number relative to start of file
`selectdaysfile`	See documentation g.getmeta
`filequality`	Single row dataframe with columns: filetooshort, filecorrupt, and filedoesnotholdday. All with the value TRUE or FALSE
`decn`	Character with a dot or a comma, used for interpretting samplefrequency in the file header. decn is derived with g.dotorcomma
`dayborder`	See documentation g.part1
`ws`	Larger windowsize for non-detection, see documentation g.part2

P=P,filequality=filequality, switchoffLD = switchoffLD

P Block object extracted from file with format specific to accelerometer brand
filequality Same as in function arguments
switchoffLD Boolean to indicate whether it is worth continueing to read the next block of data or not

Vincent T van Hees <vincentvanhees@gmail.com>

## Not run: 
filequality = data.frame(filetooshort=FALSE,filecorrupt=FALSE,
filedoesnotholdday = FALSE)
output = g.readaccfile(filename="C:/myfile.bin",blocksize=20000,blocknumber=1,
selectdaysfile=c(),filequality=filequality,
                         decn=".",dayborder=0) 

## End(Not run)