3.608765 -6.889714 9.690143
Here are the attributes of interest: nearest_marker_order_R nearest_marker_order_L dist_to_nearest_marker_R dist_to_nearest_marker_L
This is for Naoko:
          
L1: Is nearest_marker_order_R > 8? (yes=L2 and no=L3)
  L2: headtouching_no = 2892
  L3: Is nearest_marker_order_R1 > 7? (yes=L4 and no=L5)
    L4: Is nearest_marker_order_L3 > 1? (yes=L6 and no=L7)
      L6: headtouching_no = 36
      L7: Is dist_to_nearest_marker_L > 18.30986? (yes=L8 and no=L9)
        L8: Is dist_to_nearest_marker_R > 25.52601? (yes=L10 and no=L11)
          L10: headtouching_no = 9
          L11: headtouching_no = 12 headtouching_yes = 18
        L9: headtouching_no = 15
    L5: Is nearest_marker_order_L > 5? (yes=L12 and no=L13)
      L12: Is dist_to_nearest_marker_L > 18.84567? (yes=L14 and no=L15)
        L14: Is nearest_marker_order_L1 > 8? (yes=L16 and no=L17)
          L16: headtouching_no = 276
          L17: headtouching_no = 33 headtouching_yes = 1
        L15: Is dist_to_nearest_marker_R > 19.64711? (yes=L18 and no=L19)
          L18: headtouching_no = 1
          L19: headtouching_yes = 24
      L13: headtouching_no = 1336
Training set error: 0.002793896
          
L1: Is nearest_marker_order_R > 8? (yes=L2 and no=L3)
  L2: headtouching_no = 2600
  L3: Is nearest_marker_order_R1 > 7? (yes=L4 and no=L5)
    L4: Is nearest_marker_order_L3 > 1? (yes=L6 and no=L7)
      L6: headtouching_no = 33
      L7: Is dist_to_nearest_marker_L2 > 25.99256? (yes=L8 and no=L9)
        L8: headtouching_yes = 5
        L9: Is dist_to_nearest_marker_L > 18.30986? (yes=L10 and no=L11)
          L10: headtouching_no = 20 headtouching_yes = 11
          L11: headtouching_no = 12
    L5: Is nearest_marker_order_L > 5? (yes=L12 and no=L13)
      L12: Is dist_to_nearest_marker_L > 18.84567? (yes=L14 and no=L15)
        L14: Is nearest_marker_order_L1 > 8? (yes=L16 and no=L17)
          L16: headtouching_no = 248
          L17: headtouching_no = 31 headtouching_yes = 1
        L15: Is dist_to_nearest_marker_R > 19.64711? (yes=L18 and no=L19)
          L18: headtouching_no = 1
          L19: headtouching_yes = 22
      L13: headtouching_no = 1203
Training set error: 0.002866014
Test set error: 0.004291845
          
L1: Is nearest_marker_order_R > 8? (yes=L2 and no=L3)
  L2: headtouching_no = 2601
  L3: Is nearest_marker_order_R1 > 7? (yes=L4 and no=L5)
    L4: Is nearest_marker_order_L3 > 1? (yes=L6 and no=L7)
      L6: headtouching_no = 34
      L7: Is dist_to_nearest_marker_L > 18.30986? (yes=L8 and no=L9)
        L8: Is dist_to_nearest_marker_R > 25.52601? (yes=L10 and no=L11)
          L10: headtouching_no = 7
          L11: headtouching_no = 12 headtouching_yes = 17
        L9: headtouching_no = 14
    L5: Is nearest_marker_order_L > 5? (yes=L12 and no=L13)
      L12: Is dist_to_nearest_marker_L > 18.84567? (yes=L14 and no=L15)
        L14: Is nearest_marker_order_L1 > 8? (yes=L16 and no=L17)
          L16: headtouching_no = 254
          L17: headtouching_no = 28 headtouching_yes = 1
        L15: Is dist_to_nearest_marker_R > 19.64711? (yes=L18 and no=L19)
          L18: headtouching_no = 1
          L19: headtouching_yes = 19
      L13: headtouching_no = 1199
Training set error: 0.003104848
Test set error: 0
          
L1: Is nearest_marker_order_R > 8? (yes=L2 and no=L3)
  L2: headtouching_no = 2606
  L3: Is dist_to_nearest_marker_L2 > 17.64896? (yes=L4 and no=L5)
    L4: Is dist_to_nearest_marker_L1 > 18.84567? (yes=L6 and no=L7)
      L6: Is nearest_marker_order_R1 > 7? (yes=L8 and no=L9)
        L8: Is nearest_marker_order_L3 > 1? (yes=L10 and no=L11)
          L10: headtouching_no = 32
          L11: headtouching_yes = 13 headtouching_no = 18
        L9: Is dist_to_nearest_marker_L > 19.74131? (yes=L12 and no=L13)
          L12: headtouching_no = 547
          L13: headtouching_no = 150 headtouching_yes = 1
      L7: Is nearest_marker_order_L > 2? (yes=L14 and no=L15)
        L14: Is dist_to_nearest_marker_L > 18.34338? (yes=L16 and no=L17)
          L16: headtouching_no = 2
          L17: headtouching_yes = 23
        L15: Is dist_to_nearest_marker_L > 18.65008? (yes=L18 and no=L19)
          L18: headtouching_yes = 2 headtouching_no = 7
          L19: headtouching_no = 127
    L5: headtouching_no = 659
Training set error: 0.003821352
Test set error: 0.008583691
          
L1: Is nearest_marker_order_R > 8? (yes=L2 and no=L3)
  L2: headtouching_no = 2590
  L3: Is nearest_marker_order_R1 > 7? (yes=L4 and no=L5)
    L4: Is nearest_marker_order_L3 > 1? (yes=L6 and no=L7)
      L6: headtouching_no = 32
      L7: Is dist_to_nearest_marker_L > 18.30986? (yes=L8 and no=L9)
        L8: Is dist_to_nearest_marker_R > 25.52601? (yes=L10 and no=L11)
          L10: headtouching_no = 9
          L11: headtouching_yes = 17 headtouching_no = 9
        L9: headtouching_no = 15
    L5: Is nearest_marker_order_L > 5? (yes=L12 and no=L13)
      L12: Is dist_to_nearest_marker_L > 18.84567? (yes=L14 and no=L15)
        L14: Is nearest_marker_order_L1 > 8? (yes=L16 and no=L17)
          L16: headtouching_no = 251
          L17: headtouching_no = 31 headtouching_yes = 1
        L15: Is dist_to_nearest_marker_R > 19.64711? (yes=L18 and no=L19)
          L18: headtouching_no = 1
          L19: headtouching_yes = 23
      L13: headtouching_no = 1208
Training set error: 0.002388345
Test set error: 0.006437768
          
L1: Is nearest_marker_order_R1 > 8? (yes=L2 and no=L3)
  L2: headtouching_no = 2620
  L3: Is nearest_marker_order_R > 7? (yes=L4 and no=L5)
    L4: Is nearest_marker_order_R2 > 7? (yes=L6 and no=L7)
      L6: Is dist_to_nearest_marker_R > 23.56565? (yes=L8 and no=L9)
        L8: headtouching_no = 9
        L9: Is dist_to_nearest_marker_L4 > 18.73572? (yes=L10 and no=L11)
          L10: headtouching_no = 5 headtouching_yes = 16
          L11: headtouching_no = 8
      L7: headtouching_no = 42
    L5: Is nearest_marker_order_L > 5? (yes=L12 and no=L13)
      L12: Is dist_to_nearest_marker_L > 18.84567? (yes=L14 and no=L15)
        L14: Is nearest_marker_order_L1 > 8? (yes=L16 and no=L17)
          L16: headtouching_no = 250
          L17: headtouching_no = 28 headtouching_yes = 1
        L15: Is dist_to_nearest_marker_R > 19.64711? (yes=L18 and no=L19)
          L18: headtouching_no = 1
          L19: headtouching_yes = 21
      L13: headtouching_no = 1186
Training set error: 0.001433007
Test set error: 0.004291845
          
L1: Is nearest_marker_order_R > 8? (yes=L2 and no=L3)
  L2: headtouching_no = 2583
  L3: Is nearest_marker_order_R1 > 7? (yes=L4 and no=L5)
    L4: Is nearest_marker_order_L3 > 1? (yes=L6 and no=L7)
      L6: headtouching_no = 35
      L7: Is dist_to_nearest_marker_L > 18.72822? (yes=L8 and no=L9)
        L8: Is dist_to_nearest_marker_R > 23.56565? (yes=L10 and no=L11)
          L10: headtouching_no = 12 headtouching_yes = 1
          L11: headtouching_yes = 14 headtouching_no = 6
        L9: headtouching_no = 15
    L5: Is nearest_marker_order_L > 2? (yes=L12 and no=L13)
      L12: Is dist_to_nearest_marker_L > 18.84567? (yes=L14 and no=L15)
        L14: Is nearest_marker_order_L1 > 8? (yes=L16 and no=L17)
          L16: headtouching_no = 253
          L17: headtouching_no = 32 headtouching_yes = 1
        L15: Is dist_to_nearest_marker_R > 19.64711? (yes=L18 and no=L19)
          L18: headtouching_no = 1
          L19: headtouching_yes = 19
      L13: headtouching_no = 1215
Training set error: 0.001910676
Test set error: 0.006437768
          
L1: Is nearest_marker_order_R > 8? (yes=L2 and no=L3)
  L2: headtouching_no = 2601
  L3: Is nearest_marker_order_R1 > 7? (yes=L4 and no=L5)
    L4: Is nearest_marker_order_L3 > 1? (yes=L6 and no=L7)
      L6: headtouching_no = 33
      L7: Is dist_to_nearest_marker_L > 18.30986? (yes=L8 and no=L9)
        L8: Is dist_to_nearest_marker_R > 25.52601? (yes=L10 and no=L11)
          L10: headtouching_no = 8
          L11: headtouching_no = 10 headtouching_yes = 17
        L9: headtouching_no = 14
    L5: Is nearest_marker_order_L1 > 5? (yes=L12 and no=L13)
      L12: Is dist_to_nearest_marker_L > 18.34338? (yes=L14 and no=L15)
        L14: Is nearest_marker_order_L > 8? (yes=L16 and no=L17)
          L16: headtouching_no = 244
          L17: headtouching_no = 25 headtouching_yes = 1
        L15: Is nearest_marker_order_L > 1? (yes=L18 and no=L19)
          L18: headtouching_yes = 22
          L19: headtouching_no = 1
      L13: headtouching_no = 1211
Training set error: 0.002627179
Test set error: 0.006437768
          
L1: Is nearest_marker_order_R > 8? (yes=L2 and no=L3)
  L2: headtouching_no = 2612
  L3: Is nearest_marker_order_R1 > 7? (yes=L4 and no=L5)
    L4: Is nearest_marker_order_L3 > 1? (yes=L6 and no=L7)
      L6: headtouching_no = 33
      L7: Is dist_to_nearest_marker_L > 18.30986? (yes=L8 and no=L9)
        L8: Is dist_to_nearest_marker_R > 25.52601? (yes=L10 and no=L11)
          L10: headtouching_no = 9
          L11: headtouching_no = 11 headtouching_yes = 17
        L9: headtouching_no = 14
    L5: Is nearest_marker_order_L > 5? (yes=L12 and no=L13)
      L12: Is dist_to_nearest_marker_L > 18.84567? (yes=L14 and no=L15)
        L14: Is nearest_marker_order_L1 > 8? (yes=L16 and no=L17)
          L16: headtouching_no = 244
          L17: headtouching_no = 27 headtouching_yes = 1
        L15: Is dist_to_nearest_marker_R > 19.64711? (yes=L18 and no=L19)
          L18: headtouching_no = 1
          L19: headtouching_yes = 22
      L13: headtouching_no = 1196
Training set error: 0.002866014
Test set error: 0.002145923
          
L1: Is nearest_marker_order_R > 8? (yes=L2 and no=L3)
  L2: headtouching_no = 2615
  L3: Is nearest_marker_order_R1 > 7? (yes=L4 and no=L5)
    L4: Is nearest_marker_order_L3 > 1? (yes=L6 and no=L7)
      L6: headtouching_no = 33
      L7: Is dist_to_nearest_marker_L1 > 25.61576? (yes=L8 and no=L9)
        L8: headtouching_yes = 6
        L9: Is dist_to_nearest_marker_R > 23.56565? (yes=L10 and no=L11)
          L10: headtouching_no = 13
          L11: headtouching_no = 15 headtouching_yes = 10
    L5: Is nearest_marker_order_L > 5? (yes=L12 and no=L13)
      L12: Is dist_to_nearest_marker_L > 18.84567? (yes=L14 and no=L15)
        L14: Is nearest_marker_order_L1 > 8? (yes=L16 and no=L17)
          L16: headtouching_no = 254
          L17: headtouching_no = 28 headtouching_yes = 1
        L15: Is dist_to_nearest_marker_R > 19.64711? (yes=L18 and no=L19)
          L18: headtouching_no = 1
          L19: headtouching_yes = 21
      L13: headtouching_no = 1190
Training set error: 0.002627179
Test set error: 0.006437768
          
L1: Is nearest_marker_order_R > 8? (yes=L2 and no=L3)
  L2: headtouching_no = 2589
  L3: Is dist_to_nearest_marker_L1 > 17.64896? (yes=L4 and no=L5)
    L4: Is dist_to_nearest_marker_L > 18.85459? (yes=L6 and no=L7)
      L6: Is nearest_marker_order_R1 > 5? (yes=L8 and no=L9)
        L8: Is nearest_marker_order_L2 > 1? (yes=L10 and no=L11)
          L10: headtouching_no = 30
          L11: headtouching_yes = 12 headtouching_no = 17
        L9: Is dist_to_nearest_marker_L4 > 26.17665? (yes=L12 and no=L13)
          L12: headtouching_no = 216 headtouching_yes = 1
          L13: headtouching_no = 481
      L7: Is nearest_marker_order_L > 2? (yes=L14 and no=L15)
        L14: Is dist_to_nearest_marker_R > 19.64711? (yes=L16 and no=L17)
          L16: headtouching_no = 1
          L17: headtouching_yes = 23
        L15: Is nearest_marker_order_R1 > 5? (yes=L18 and no=L19)
          L18: headtouching_no = 7 headtouching_yes = 3
          L19: headtouching_no = 128
    L5: headtouching_no = 679
Training set error: 0.003821352
Test set error: 0.006437768