iter RMSE 0 13.99348315 1 13.08679896 2 12.24911066 3 11.53058054 4 10.84207334 5 10.30180643 6 9.78256195 7 9.383051568 8 8.99755936 9 8.583469865 10 8.227667947 11 7.929112785 12 7.684630471 13 7.424891669 14 7.201854992 15 6.982008334 16 6.825014781 17 6.660105229 18 6.506800805 19 6.376253871 20 6.266699941 21 6.183713198 22 6.095001646 23 6.017210026 24 5.926879154 25 5.869115164 26 5.794295297 27 5.736659494 28 5.688737334 29 5.646276694 30 5.60024339 31 5.562148648 32 5.518152613 33 5.469872589 34 5.45057841 35 5.428112506 36 5.402930191 37 5.378422269 38 5.357370046 39 5.323772692 40 5.299500716 41 5.281272066 42 5.263540736 43 5.254240202 44 5.239421602 45 5.217876804 46 5.196339687 47 5.173762601 48 5.157351931 49 5.145163366 50 5.132132849 51 5.121703354 52 5.117554392 53 5.110919902 54 5.099775896 55 5.081971316 56 5.063256046 57 5.046093491 58 5.032051633 59 5.018495584 60 5.008909962 61 4.99771367 62 4.989916869 63 4.981820588 64 4.960666189 65 4.94706364 66 4.938906099 67 4.920677053 68 4.903676084 69 4.897635401 70 4.889952833 71 4.882302534 72 4.873750572 73 4.865386403 74 4.857493367 75 4.848032763 76 4.839634573 77 4.826534384 78 4.81907123 79 4.811944485 80 4.807339578 81 4.79836765 82 4.776924133 83 4.768244651 84 4.761240486 85 4.751984925 86 4.733949017 87 4.727594275 88 4.713457982 89 4.706779065 90 4.696353448 91 4.685069481 92 4.679105072 93 4.669998076 94 4.655194439 95 4.6402433 96 4.620675835 97 4.617949274 98 4.611545659 99 4.59686047