Play Golf
Blaz Zupan
March, 2002
A single model from famous Ross Quinlan's data set,
used as an example of a simple Decision Support Schema
forecast
Forecast
Forecast for next Saturday
categorical
sunny;overcast;rainy
pulldown
yes
forecast1
Forecast1
Forecast Categorized
categorized
10;30;100
radiohorizontal
no
50.7
temp
Temperature
Predicted Temperature for next Saturday
numerical
numerical
150
yes
N/A
humidity
Humidity
Predicted Humidity
categorical
low;high
checkbox
low
Dry weather on Saturday
temp1
Temperature1
Predicted Temperature for next Saturday
numerical
numerical
150
yes
N/A
wind
Windy
Is wind going to blow on next Saturday?
categorical
no;yes
checkbox
no
Any wind on Saturday?
yes
forecast;temp1
temp;forecast1;humidity;wind
t
T
no
temp
80
catmap
CatMap
nummap
NumMap
comVar
Compute variable
1;X
case(catmap,1,X)
Naive Bayesian Model
forecast;t;humidity;wind
Probability of favorable weather to play golf1
0.6,0.4
0.6,0.4;0.5,0.5;0.66,0.34
0.625,0.375;0.5,0.5
0.25,0.75;0.83,0.17
0.5,0.5;0.75,0.25
Naive Bayesian Model
forecast;t;humidity;wind
Probability of favorable weather to play golf2
0.6,0.4
0.6,0.4;0.5,0.5;0.66,0.34
0.625,0.375;0.5,0.5
0.25,0.75;0.83,0.17
0.5,0.5;0.75,0.25