trackeR (version 0.0.3)

readDirectory: Read all supported container files from a supplied directory.

Description

Read all supported container files from a supplied directory.

Usage

readDirectory(directory, aggregate = TRUE, table = "gps_data", timezone = "", sessionThreshold = 2, correctDistances = FALSE, country = NULL, mask = TRUE, fromDistances = NULL, speedunit = list(tcx = "m_per_s", db3 = "km_per_h", json = "km_per_h"), distanceunit = list(tcx = "m", db3 = "km", json = "km"), cycling = FALSE, lgap = 30, lskip = 5, m = 11, parallel = FALSE, cores = getOption("mc.cores", 2L), verbose = TRUE)

Arguments

directory

The path to the directory.

aggregate

Logical. Aggregate data from different files to the same session if observations are less then sessionThreshold hours apart? Alternatively, data from different files is stored in different sessions.

table

The name of the table in the database for db3 files.

timezone

The timezone of the observations as passed on to as.POSIXct. Ignored for JSON files.

sessionThreshold

The threshold in hours for the time difference between consecutive timestamps above which they are considered to belong to different training sessions.

correctDistances

Logical. Should the distances be corrected for elevation?

country

ISO3 country code for downloading altitude data. If NULL, country is derived from longitude and latitude.

mask

Logical. Passed on to getData. Should only the altitudes for the specified country be extracted (TRUE) or also those for the neighboring countries (FALSE)?

fromDistances

Logical. Should the speeds be calculated from the distance recordings instead of taken from the speed recordings directly. Defaults to TRUE for tcx and Golden Cheetah's json files and to FALSE for db3 files.

speedunit

Character string indicating the measurement unit of the speeds in the container file to be converted into meters per second. Default is m_per_s for tcx files and km_per_h for db3 and Golden Cheetah's json files. See Details.

distanceunit

Character string indicating the measurement unit of the distance in the container file to be converted into meters. Default is m for tcx files and km for db3 and Golden Cheetah's json files. See Details.

cycling

Logical. Do the data stem from cycling instead of running? If so, the default unit of measurement for cadence is set to rev_per_min instead of steps_per_min and power is imputed with 0, else with NA.

lgap

Time in seconds corresponding to the minimal sampling rate.

lskip

Time in seconds between the last observation before a small break and the first imputed speed or the last imputed speed and the first observation after a small break.

m

Number of imputed observations in each small break.

parallel

Logical. Should computation be carried out in parallel? (Not supported on Windows.)

cores

Number of cores for parallel computing.

verbose

Logical. Should progress reports be printed?

Value

An object of class trackeRdata.

Details

Available options for speedunit currently are km_per_h, m_per_s, mi_per_h, ft_per_min and ft_per_s. Available options for distanceunit currently are km, m, mi and ft.

Reading Golden Cheetah's JSON files is experimental.

See Also

trackeRdata, readTCX, readDB3, readJSON