One year of daily weather observations collected from the Canberra airport in Australia was obtained from the Australian Commonwealth Bureau of Meteorology and processed to create this sample dataset for illustrating data mining using R and Rattle.
The data has been processed to provide a target variable
RainTomorrow (whether there is rain on the following day -
No/Yes) and a risk variable
RISK_MM (how much rain recorded in
millimetres). Various transformations were performed on the source
data. The dataset is quite small and is useful only for repeatable
demonstration of various data science operations.
The source dataset is Copyright by the Australian Commonwealth Bureau of Meteorology and is provided as part of the rattle package with permission.
weather dataset is a data frame containing one year of
daily observations from a single weather station (Canberra).
The date of observation (a Date object).
The common name of the location of the weather station.
The minimum temperature in degrees celsius.
The maximum temperature in degrees celsius.
The amount of rainfall recorded for the day in mm.
The so-called Class A pan evaporation (mm) in the 24 hours to 9am.
The number of hours of bright sunshine in the day.
The direction of the strongest wind gust in the 24 hours to midnight.
The speed (km/h) of the strongest wind gust in the 24 hours to midnight.
Temperature (degrees C) at 9am.
Relative humidity (percent) at 9am.
Fraction of sky obscured by cloud at 9am. This is measured in "oktas", which are a unit of eigths. It records how many eigths of the sky are obscured by cloud. A 0 measure indicates completely clear sky whilst an 8 indicates that it is completely overcast.
Wind speed (km/hr) averaged over 10 minutes prior to 9am.
Atmospheric pressure (hpa) reduced to mean sea level at 9am.
Temperature (degrees C) at 3pm.
Relative humidity (percent) at 3pm.
Fraction of sky obscured by cloud (in "oktas": eighths) at 3pm. See Cload9am for a description of the values.
Wind speed (km/hr) averaged over 10 minutes prior to 3pm.
Atmospheric pressure (hpa) reduced to mean sea level at 3pm.
Change in temperature.
Direction of change in temperature.
Magnitude of change in temperature.
Direction of wind change.
Period of maximum wind.
Integer: 1 if precipitation (mm) in the 24 hours to 9am exceeds 1mm, otherwise 0.
Difference between minimum and maximum temperatures (degrees C) in the 24 hours to 9am.
Change in pressure.
The amount of rain. A kind of measure of the "risk".
The target variable. Did it rain tomorrow?
The daily observations are available from http://www.bom.gov.au/climate/data. Copyright Commonwealth of Australia 2010, Bureau of Meteorology.
Definitions adapted from http://www.bom.gov.au/climate/dwo/IDCJDW0000.shtml
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