1 files changed, 119 insertions, 0 deletions
diff --git a/examples/takagi-sugeno/approximation.R b/examples/takagi-sugeno/approximation.R
new file mode 100644
index 0000000..89c0654
--- /dev/null
+++ b/examples/takagi-sugeno/approximation.R
@@ -0,0 +1,119 @@
+#Code automatically generated with fuzzylite 6.0.
+
+library(ggplot2);
+
+engine.name = "approximation"
+engine.fll = "Engine: approximation
+InputVariable: inputX
+  enabled: true
+  range: 0.000 10.000
+  lock-range: false
+  term: NEAR_1 Triangle 0.000 1.000 2.000
+  term: NEAR_2 Triangle 1.000 2.000 3.000
+  term: NEAR_3 Triangle 2.000 3.000 4.000
+  term: NEAR_4 Triangle 3.000 4.000 5.000
+  term: NEAR_5 Triangle 4.000 5.000 6.000
+  term: NEAR_6 Triangle 5.000 6.000 7.000
+  term: NEAR_7 Triangle 6.000 7.000 8.000
+  term: NEAR_8 Triangle 7.000 8.000 9.000
+  term: NEAR_9 Triangle 8.000 9.000 10.000
+OutputVariable: outputFx
+  enabled: true
+  range: -1.000 1.000
+  lock-range: false
+  aggregation: none
+  defuzzifier: WeightedAverage TakagiSugeno
+  default: nan
+  lock-previous: true
+  term: f1 Constant 0.840
+  term: f2 Constant 0.450
+  term: f3 Constant 0.040
+  term: f4 Constant -0.180
+  term: f5 Constant -0.190
+  term: f6 Constant -0.040
+  term: f7 Constant 0.090
+  term: f8 Constant 0.120
+  term: f9 Constant 0.040
+OutputVariable: trueFx
+  enabled: true
+  range: -1.000 1.000
+  lock-range: false
+  aggregation: none
+  defuzzifier: WeightedAverage Automatic
+  default: nan
+  lock-previous: true
+  term: fx Function sin(inputX)/inputX
+OutputVariable: diffFx
+  enabled: true
+  range: -1.000 1.000
+  lock-range: false
+  aggregation: none
+  defuzzifier: WeightedAverage Automatic
+  default: nan
+  lock-previous: false
+  term: diff Function fabs(outputFx-trueFx)
+RuleBlock: 
+  enabled: true
+  conjunction: none
+  disjunction: none
+  implication: none
+  activation: General
+  rule: if inputX is NEAR_1 then outputFx is f1
+  rule: if inputX is NEAR_2 then outputFx is f2
+  rule: if inputX is NEAR_3 then outputFx is f3
+  rule: if inputX is NEAR_4 then outputFx is f4
+  rule: if inputX is NEAR_5 then outputFx is f5
+  rule: if inputX is NEAR_6 then outputFx is f6
+  rule: if inputX is NEAR_7 then outputFx is f7
+  rule: if inputX is NEAR_8 then outputFx is f8
+  rule: if inputX is NEAR_9 then outputFx is f9
+  rule: if inputX is any  then trueFx is fx and diffFx is diff"
+
+engine.fldFile = "approximation.fld"
+if (require(data.table)) {
+    engine.df = data.table::fread(engine.fldFile, sep="auto", header="auto")
+} else {
+    engine.df = read.table(engine.fldFile, header=TRUE)
+}
+
+engine.plot.i1_o1 = ggplot(engine.df, aes(inputX, outputFx)) + 
+    geom_line(aes(color=outputFx), size=3, lineend="round", linejoin="mitre") + 
+    scale_color_gradient(low="yellow", high="red") + 
+    ggtitle("inputX vs outputFx")
+
+engine.plot.o1_i1 = ggplot(engine.df, aes(inputX, outputFx)) + 
+    geom_line(aes(color=outputFx), size=3, lineend="round", linejoin="mitre") + 
+    scale_color_gradient(low="yellow", high="red") + 
+    coord_flip() + 
+    ggtitle("outputFx vs inputX")
+
+engine.plot.i1_o2 = ggplot(engine.df, aes(inputX, trueFx)) + 
+    geom_line(aes(color=trueFx), size=3, lineend="round", linejoin="mitre") + 
+    scale_color_gradient(low="yellow", high="red") + 
+    ggtitle("inputX vs trueFx")
+
+engine.plot.o2_i1 = ggplot(engine.df, aes(inputX, trueFx)) + 
+    geom_line(aes(color=trueFx), size=3, lineend="round", linejoin="mitre") + 
+    scale_color_gradient(low="yellow", high="red") + 
+    coord_flip() + 
+    ggtitle("trueFx vs inputX")
+
+engine.plot.i1_o3 = ggplot(engine.df, aes(inputX, diffFx)) + 
+    geom_line(aes(color=diffFx), size=3, lineend="round", linejoin="mitre") + 
+    scale_color_gradient(low="yellow", high="red") + 
+    ggtitle("inputX vs diffFx")
+
+engine.plot.o3_i1 = ggplot(engine.df, aes(inputX, diffFx)) + 
+    geom_line(aes(color=diffFx), size=3, lineend="round", linejoin="mitre") + 
+    scale_color_gradient(low="yellow", high="red") + 
+    coord_flip() + 
+    ggtitle("diffFx vs inputX")
+
+if (require(gridExtra)) {
+    engine.plots = arrangeGrob(engine.plot.i1_o1, engine.plot.o1_i1, engine.plot.i1_o2, engine.plot.o2_i1, engine.plot.i1_o3, engine.plot.o3_i1, ncol=2, top=engine.name)
+    ggsave(paste0(engine.name, ".pdf"), engine.plots)
+    if (require(grid)) {
+        grid.newpage()
+        grid.draw(engine.plots)
+    }
+}