load_ssim {ssimparser}

load_ssim

Description

Load SSIM file into a Data Frame.

Usage

load_ssim(
  ssim_file = get_ssim_sample(),
  nested_df = FALSE,
  collist = get_ssim_collist(getall = FALSE),
  clean_col_names = TRUE,
  unpivot_days_of_op = FALSE,
  expand_sched = FALSE
)

Arguments

ssim_file

Path to the SSIM file or character vector containing the content to load.

nested_df

Nest SSIM type 3 into type 2 (TRUE/FALSE). Default to FALSE.

collist

List of columns that need to be present in the final Data Frame. get_ssim_collist() to get the full list.

clean_col_names

Clean column names in the final Data Frame by removing type2/type3 prefixes (TRUE/FALSE). Default TRUE.

unpivot_days_of_op

Unpivot the schedules by creating a schedule by day of operation (TRUE/FALSE). Default FALSE.

expand_sched

Expand schedules into flights.

Value

Data Frame (nested or not) containing the schedules (or flights when schedules were expanded).

Examples

# Get a sample as a character vector
sample_ssim_string <- ssimparser::get_ssim_sample(datefrom = as.Date("2020-11-01"),
dateto = as.Date("2020-12-01"),
season = "W20",
creadate = as.Date("2020-12-02"))

# Write sample to temp dir
sample_ssim_file <- tempfile()
write(sample_ssim_string, sample_ssim_file, append = FALSE)

# Load sample, expand schedules to flights and display the traffic
# by month and departure airport ICAO
ssimparser::load_ssim(ssim_file = sample_ssim_file,
expand_sched = TRUE) %>%
dplyr::group_by(format(flight.flight_date,"%Y-%m"), adep_icao) %>%
dplyr::summarise(n=dplyr::n())

# Get the unique list of airports ICAO
ssimparser::load_ssim(ssim_file = sample_ssim_file, expand_sched = TRUE,
collist = c("type3.adep_icao", "type3.ades_icao")) %>% unique()

# Nest the type 3 into type 2
ssim_nested <- ssimparser::load_ssim(ssim_file = sample_ssim_file,
expand_sched = FALSE, nested = TRUE)
head(ssim_nested)

# Remove the sample SSIM file
unlink(sample_ssim_file)