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Get time series values in a tibble

Source: R/get_data.R
get_data.Rd

get_data returns a tibble from a Hydroscope's time-series text file.

Usage

get_data(subdomain = "kyy", time_id, utc_offset = NULL)

Arguments

subdomain

One of the subdomains of hydroscope.gr

time_id

A time series ID

utc_offset

Optional fixed source offset from UTC, in minutes. Positive values are east of UTC. If NULL, resolve it from the legacy Timeseries and TimeZone metadata. For example, 120 means UTC+02:00.

Value

If subdomain is one of:

  • kyy, Ministry of Environment and Energy

  • ypaat, Ministry of Rural Development and Food

  • deh, Greek Public Power Corporation

  • emy, National Meteorological Service

and time_id exists in that subdomain, returns a tibble with the time series values. Otherwise returns an error message.

The dataframe columns are:

date

The time series Dates (POSIXct, UTC)

value

The time series values (numeric)

comment

Comments about the values (character)

Details

Legacy timestamps have no explicit offset. Dates are converted to UTC using the source's fixed offset. Missing metadata causes an error; UTC is never assumed silently.

Note

Data are not available freely in the sub-domains: "deh" (Greek Public Power Corporation) and "emy" (National Meteorological Service).

References

Stations' data are retrieved from the Hydroscope's databases:

  • Ministry of Environment, Energy and Climate Change.

  • Ministry of Rural Development.

Author

Konstantinos Vantas, kon.vantas@gmail.com

Examples

if (FALSE) { # \dontrun{
# get time series 912 from the Greek Ministry of Environment and Energy
time_series <- get_data("kyy", 912)
} # }