AirlineDemoSmall: Small Airline Demonstration File

Description

A small sample of airline on-time performance data.

Format

An .xdf file with 600000 observations on the following 3 variables.

ArrDelay

arrival delay, in minutes (stored as integer).

CRSDepTime

schedule departure time (stored as float32).

DayOfWeek

day of the week (stored as a factor).

Details

This data set is a small subsample of airline on-time performance data containing only 600,000 observations of 3 variables, so it will fit in memory on most systems. It is an .xdf file, which means that the data are stored in blocks. The AirlineDemoSmall.xdf data file contains 3 blocks. It is compressed using zlib compression. The AirlineDemoSmallUC.xdf contains the same data, but without compression.

The data are also available in text format in the file AirlineDemoSmall.csv. A smaller subset, with only 1010 rows and no missing data, is available in text format in the file AirlineDemo1kNoMissing.csv.

Source

American Statistical Association Statistical Computing Group, Data Expo '09. http://stat-computing.org/dataexpo/2009/the-data.html

References

U.S. Department of Transportation, Bureau of Transportation Statistics, Research and Innovative Technology Administration. Airline On-Time Statistics. http://www.bts.gov/xml/ontimesummarystatistics/src/index.xml

See Also

AirOnTime87to12

Examples


 airlineSmall <- file.path(rxGetOption("sampleDataDir"), "AirlineDemoSmall.xdf")
 rxSummary(~ ArrDelay + CRSDepTime, data = airlineSmall)