Skip to contents

Imports directory into store

Source: R/utils-import.R
import_directory.Rd

Imports directory into store

Usage

import_directory(
  store,
  path,
  read_function,
  glob = NULL,
  regexp = NULL,
  recursive = TRUE,
  ...
)

Arguments

store

instance of the store to import data into

path

to directory containing the data files

read_function

function with argument file, ... is passed to this function to supply additionals arguments

glob

see fs::dir_ls()

regexp

see fs::dir_ls()

recursive

see fs::dir_ls()

...

passed to the read_function

Examples

format <- rOstluft::format_rolf()
store <- rOstluft::storage_local_rds("example_rOstluft", format, read.only = FALSE)
#> Local store example_rOstluft initialized under 'C:\Users\tom\AppData\Local/rOstluft/example_rOstluft'
path <- system.file("extdata", package = "rOstluft.data")

rOstluft::import_directory(store, path, rOstluft::read_airmo_csv, glob = "*Jan.csv")
#> Importing 'C:/Users/tom/AppData/Local/R/cache/R/renv/library/rOstluft-c971cee0/R-4.3/x86_64-w64-mingw32/rOstluft.data/extdata/Zch_Stampfenbachstrasse_d1_2013_Jan.csv' with size 25.4K. File 1 of 3
#> Read 'C:/Users/tom/AppData/Local/R/cache/R/renv/library/rOstluft-c971cee0/R-4.3/x86_64-w64-mingw32/rOstluft.data/extdata/Zch_Stampfenbachstrasse_d1_2013_Jan.csv' in 0.21 seconds. Got 2170 data points
#> First put to storage. Save columns types to C:/Users/tom/AppData/Local/rOstluft/example_rOstluft/columns.rds
#> Put data into store example_rOstluft in 0.09 seconds
#> Importing 'C:/Users/tom/AppData/Local/R/cache/R/renv/library/rOstluft-c971cee0/R-4.3/x86_64-w64-mingw32/rOstluft.data/extdata/Zch_Stampfenbachstrasse_h1_2013_Jan.csv' with size 142K. File 2 of 3
#> Read 'C:/Users/tom/AppData/Local/R/cache/R/renv/library/rOstluft-c971cee0/R-4.3/x86_64-w64-mingw32/rOstluft.data/extdata/Zch_Stampfenbachstrasse_h1_2013_Jan.csv' in 0.08 seconds. Got 14116 data points
#> Put data into store example_rOstluft in 0.12 seconds
#> Importing 'C:/Users/tom/AppData/Local/R/cache/R/renv/library/rOstluft-c971cee0/R-4.3/x86_64-w64-mingw32/rOstluft.data/extdata/Zch_Stampfenbachstrasse_min30_2013_Jan.csv' with size 258K. File 3 of 3
#> Read 'C:/Users/tom/AppData/Local/R/cache/R/renv/library/rOstluft-c971cee0/R-4.3/x86_64-w64-mingw32/rOstluft.data/extdata/Zch_Stampfenbachstrasse_min30_2013_Jan.csv' in 0.09 seconds. Got 28234 data points
#> Put data into store example_rOstluft in 0.10 seconds
#> Finished import after 0.70 seconds

store$get_content()
#> # A tibble: 108 × 6
#>     year interval site                    parameter unit      n
#>    <dbl> <fct>    <fct>                   <fct>     <fct> <int>
#>  1  2013 min30    Zch_Stampfenbachstrasse CO        mg/m3  1484
#>  2  2013 min30    Zch_Stampfenbachstrasse CO        ppm    1484
#>  3  2013 min30    Zch_Stampfenbachstrasse Hr        %Hr    1487
#>  4  2013 min30    Zch_Stampfenbachstrasse NO        µg/m3  1484
#>  5  2013 min30    Zch_Stampfenbachstrasse NO        ppb    1484
#>  6  2013 min30    Zch_Stampfenbachstrasse NO2       µg/m3  1484
#>  7  2013 min30    Zch_Stampfenbachstrasse NO2       ppb    1484
#>  8  2013 min30    Zch_Stampfenbachstrasse NOx       ppb    1484
#>  9  2013 min30    Zch_Stampfenbachstrasse O3        µg/m3  1488
#> 10  2013 min30    Zch_Stampfenbachstrasse O3        ppb    1488
#> # ℹ 98 more rows

store$destroy("DELETE")
#> Store example_rOstluft destroyed