Download the data files of specified type, zones, and dates
Source:R/download_data.R
spod_download.Rd
This function downloads the data files of the specified type, zones, dates and data version.
Usage
spod_download(
type = c("od", "origin-destination", "os", "overnight_stays", "nt", "number_of_trips"),
zones = c("districts", "dist", "distr", "distritos", "municipalities", "muni",
"municip", "municipios", "lua", "large_urban_areas", "gau", "grandes_areas_urbanas"),
dates = NULL,
max_download_size_gb = 1,
data_dir = spod_get_data_dir(),
quiet = FALSE,
return_local_file_paths = FALSE,
ignore_missing_dates = FALSE
)
Arguments
- type
The type of data to download. Can be
"origin-destination"
(or ust"od"
), or"number_of_trips"
(or just"nt"
) for v1 data. For v2 data"overnight_stays"
(or just"os"
) is also available. More data types to be supported in the future. See codebooks for v1 and v2 data in vignettes withspod_codebook(1)
andspod_codebook(2)
(spod_codebook).- zones
The zones for which to download the data. Can be
"districts"
(or"dist"
,"distr"
, or the original Spanish"distritos"
) or"municipalities"
(or"muni"
,"municip"
, or the original Spanish"municipios"
) for both data versions. Additionaly, these can be"large_urban_areas"
(or"lua"
, or the original Spanish"grandes_areas_urbanas"
, or"gau"
) for v2 data (2022 onwards).- dates
A
character
orDate
vector of dates to process. Kindly keep in mind that v1 and v2 data follow different data collection methodologies and may not be directly comparable. Therefore, do not try to request data from both versions for the same date range. If you need to compare data from both versions, please refer to the respective codebooks and methodology documents. The v1 data covers the period from 2020-02-14 to 2021-05-09, and the v2 data covers the period from 2022-01-01 to the present until further notice. The true dates range is checked against the available data for each version on every function run.The possible values can be any of the following:
For the
spod_get()
andspod_convert()
functions, thedates
can be set to "cached_v1" or "cached_v2" to request data from cached (already previously downloaded) v1 (2020-2021) or v2 (2022 onwards) data. In this case, the function will identify and use all data files that have been downloaded and cached locally, (e.g. using an explicit run ofspod_download()
, or any data requests made using thespod_get()
orspod_convert()
functions).A single date in ISO (YYYY-MM-DD) or YYYYMMDD format.
character
orDate
object.A vector of dates in ISO (YYYY-MM-DD) or YYYYMMDD format.
character
orDate
object. Can be any non-consecutive sequence of dates.A date range
eigher a
character
orDate
object of length 2 with clearly named elementsstart
andend
in ISO (YYYY-MM-DD) or YYYYMMDD format. E.g.c(start = "2020-02-15", end = "2020-02-17")
;or a
character
object of the formYYYY-MM-DD_YYYY-MM-DD
orYYYYMMDD_YYYYMMDD
. For example,2020-02-15_2020-02-17
or20200215_20200217
.
A regular expression to match dates in the format
YYYYMMDD
.character
object. For example,^202002
will match all dates in February 2020.
- max_download_size_gb
The maximum download size in gigabytes. Defaults to 1.
- data_dir
The directory where the data is stored. Defaults to the value returned by
spod_get_data_dir()
which returns the value of the environment variableSPANISH_OD_DATA_DIR
or a temporary directory if the variable is not set.- quiet
A
logical
value indicating whether to suppress messages. Default isFALSE
.- return_local_file_paths
Logical. If
TRUE
, the function returns a character vector of the paths to the downloaded files. IfFALSE
, the function returnsNULL
.- ignore_missing_dates
Logical. If
TRUE
, the function will not raise an error if the some of the specified dates are missing. Any dates that are missing will be skipped, however the data for any valid dates will be acquired. Defaults toFALSE
.
Value
Nothing. If return_local_file_paths = TRUE
, a character
vector of the paths to the downloaded files.
Examples
if (FALSE) { # \dontrun{
# Download the origin-destination on district level for the a date range in March 2020
spod_download(
type = "od", zones = "districts",
dates = c(start = "2020-03-20", end = "2020-03-24")
)
# Download the origin-destination on district level for select dates in 2020 and 2021
spod_download(
type = "od", zones = "dist",
dates = c("2020-03-20", "2020-03-24", "2021-03-20", "2021-03-24")
)
# Download the origin-destination on municipality level using regex for a date range in March 2020
# (the regex will capture the dates 2020-03-20 to 2020-03-24)
spod_download(
type = "od", zones = "municip",
dates = "2020032[0-4]"
)
} # }