// ~->[DNET-1]->~

// File created by Norsys using Netica 1.06b on Mar 29, 1998 at 05:52:01.

bnet Oil_Wildcatter_Simplified {
autoupdate = TRUE;
comment = "An influence diagram with decisions of whether to do seismic \
	tests for oil, and whether to drill for oil, in order to \
	maximize profits. \n\
	Same as Oil_Wildcatter, but with some nodes absorbed ('summed \
	out'). \n\
	In wide usage, but originally from Raiffa68.";
whenchanged = 891179350;

visual V1 {
	defdispform = LABELBOX;
	nodelabeling = TITLE;
	nodefont = font {shape= "Arial"; size= 10;};
	linkfont = font {shape= "Arial"; size= 9;};
	commentfont = font {shape= "Arial"; size= 10;};
	windowposn = (37, 175, 446, 543);
	resolution = 72;
	drawingbounds = (1104, 730);
	showpagebreaks = FALSE;
	usegrid = TRUE;
	gridspace = (6, 6);
	};

node Oil {
	kind = NATURE;
	discrete = TRUE;
	chance = CHANCE;
	states = (Dry, Wet, Soaking);
	parents = ();
	probs = 
		// Dry          Wet          Soaking      
		  (0.5,         0.3,         0.2);
	title = "Amount of Oil";
	visual V1 {
		center = (90, 48);
		height = 1;
		};
	};

node Structure {
	kind = NATURE;
	discrete = TRUE;
	chance = CHANCE;
	states = (None, Open, Closed);
	parents = (Oil);
	probs = 
		// None         Open         Closed         // Oil     
		 ((0.6,         0.3,         0.1),          // Dry     
		  (0.3,         0.4,         0.3),          // Wet     
		  (0.1,         0.4,         0.5));         // Soaking ;
	title = "Seismic\nStructure";
	visual V1 {
		center = (276, 48);
		height = 6;
		};
	};

node Test {
	kind = DECISION;
	discrete = TRUE;
	chance = DETERMIN;
	states = (Do_test, No_test);
	parents = ();
	title = "Test?";
	visual V1 {
		center = (96, 138);
		height = 5;
		};
	};

node Result {
	kind = NATURE;
	discrete = TRUE;
	chance = DETERMIN;
	states = (None, Open, Closed, No_result);
	parents = (Test, Structure);
	functable = 
		                     // Test    Structure 
		 ((None,             // Do_test None      
		   Open,             // Do_test Open      
		   Closed),          // Do_test Closed    
		  (No_result,        // No_test None      
		   No_result,        // No_test Open      
		   No_result));      // No_test Closed    ;
	equation = "Result (Test, Structure) = \n\
		(Test == Do_test) ? Structure : No_result";
	title = "Test Result";
	visual V1 {
		center = (276, 138);
		height = 2;
		};
	};

node Drill {
	kind = DECISION;
	discrete = TRUE;
	chance = DETERMIN;
	states = (Drill, Dont_drill);
	parents = (Test, Result);
	title = "Drill?";
	visual V1 {
		center = (276, 222);
		height = 3;
		};
	};

node Profit {
	kind = UTILITY;
	discrete = FALSE;
	measure = RATIO;
	chance = DETERMIN;
	parents = (Drill, Oil, Test);
	functable = 
		                   // Drill      Oil     Test    
		(((-80,            // Drill      Dry     Do_test 
		   -70),           // Drill      Dry     No_test 
		  (40,             // Drill      Wet     Do_test 
		   50),            // Drill      Wet     No_test 
		  (190,            // Drill      Soaking Do_test 
		   200)),          // Drill      Soaking No_test 
		 ((-10,            // Dont_drill Dry     Do_test 
		   0),             // Dont_drill Dry     No_test 
		  (-10,            // Dont_drill Wet     Do_test 
		   0),             // Dont_drill Wet     No_test 
		  (-10,            // Dont_drill Soaking Do_test 
		   0)));           // Dont_drill Soaking No_test ;
	title = "Profit";
	visual V1 {
		center = (276, 282);
		height = 4;
		link 2 {
			path = ((82, 58), (42, 102), (42, 282), (250, 282));
			};
		link 3 {
			path = ((99, 148), (144, 258), (250, 278));
			};
		};
	};
};