There is no correlation between gpm and Duration and there are no clusters. The values are standardized.
gpm Duration
Abaddon -0.818282 -0.906268
Alchemist 1.959302 -0.558111
Ancient Apparition -1.183011 2.053064
Anti-Mage 1.705658 0.022150
Arc Warden 2.257958 0.370306
Axe 0.305873 0.969910
Bane -1.579560 0.157544
Batrider -0.794098 -0.306665
Beastmaster 0.015664 -2.028106
Bloodseeker 0.843825 1.163330
Bounty Hunter 0.033600 -0.442059
Brewmaster 0.320106 -0.809558
Bristleback 0.368011 0.757147
Broodmother 0.429224 -3.207971
Centaur Warrunner 0.139362 0.118860
Chaos Knight 0.667015 -0.809558
Chen -1.116938 -2.550341
Clinkz 0.023764 -0.267981
Clockwerk -1.115550 0.428333
Crystal Maiden -1.634409 0.312280
Dark Seer -0.161030 0.234912
Dark Willow -0.994745 0.931226
Dawnbreaker 0.186110 -0.674164
Dazzle -1.335405 -0.577453
Death Prophet -0.021827 0.041492
Disruptor -1.805896 0.234912
Doom 0.881085 0.718463
Dragon Knight 0.288864 -0.055218
Drow Ranger 1.004204 1.143988
Earth Spirit -0.737977 -0.577453
Earthshaker -0.191810 0.873199
Elder Titan -0.759153 1.163330
Ember Spirit 0.754263 -0.016534
Enchantress -1.093449 0.544385
Enigma -1.191921 0.583069
Faceless Void 1.221745 1.027936
Grimstroke -1.440010 0.118860
Gyrocopter 1.498878 -0.422717
Hoodwink -0.739481 1.105304
Huskar 0.108004 -1.351135
Invoker 0.066115 0.621753
Io -2.036281 -2.975866
Jakiro -1.189838 0.583069
Juggernaut 1.313043 -0.403375
Keeper of the Light -0.648993 0.234912
Kunkka 0.691546 0.931226
Legion Commander 0.378310 -0.345349
Leshrac 0.320916 -0.229297
Lich -1.429943 0.834515
Lifestealer 0.776711 -0.480743
Lina 0.743039 0.718463
Lion -1.672363 0.525043
Lone Druid 0.830286 -3.072576
Luna 1.209364 -0.654822
Lycan 0.471459 -2.453631
Magnus -0.527379 -0.209955
Marci -1.065562 -1.583239
Mars -0.185561 -0.074560
Medusa 1.297306 1.820959
Meepo 1.066920 -2.975866
Mirana -1.061396 0.408991
Monkey King 0.507678 -0.267981
Morphling 1.242689 -1.389819
Muerta 1.244078 1.105304
Naga Siren 1.798923 -0.538769
Nature's Prophet 0.700109 -0.209955
Necrophos 0.924593 -0.229297
Night Stalker 0.125592 -0.538769
Nyx Assassin -0.919647 0.679779
Ogre Magi -0.264362 0.254254
Omniknight -0.726869 -0.616138
Oracle -1.732765 -1.177057
Outworld Destroyer 0.889995 -0.074560
Pangolier 0.636351 0.022150
Phantom Assassin 1.645256 -0.461401
Phantom Lancer 1.291057 0.757147
Phoenix -0.996828 0.254254
Primal Beast -0.087089 -0.035876
Puck 0.675578 -0.074560
Pudge -0.809372 -0.055218
Pugna -0.849409 0.118860
Queen of Pain 0.542044 0.602411
Razor 0.647575 0.467017
Riki 0.492982 0.950568
Rubick -1.212286 0.583069
Sand King 0.109855 1.260040
Shadow Demon -1.464079 0.602411
Shadow Fiend 1.224406 -0.944952
Shadow Shaman -1.135915 0.157544
Silencer -0.868386 0.679779
Skywrath Mage -1.364334 0.563727
Slardar 0.195483 -0.229297
Slark 0.756230 -0.113245
Snapfire -0.594030 0.312280
Sniper 1.027693 1.530829
Spectre 1.203231 1.318066
Spirit Breaker -0.355313 -0.035876
Storm Spirit 0.565650 0.234912
Sven 1.768259 -0.055218
Techies -0.826729 1.898327
Templar Assassin 1.364304 -0.944952
Terrorblade 1.508251 -0.248639
Tidehunter -0.422889 -0.209955
Timbersaw 0.108119 0.041492
Tinker 0.542854 0.718463
Tiny -0.282876 -0.055218
Treant Protector -1.562551 -0.732190
Troll Warlord 1.369395 -0.693506
Tusk -0.923350 -0.403375
Underlord -0.339344 0.215570
Undying -1.115087 -0.074560
Ursa 1.154284 0.292938
Vengeful Spirit -1.523555 -0.809558
Venomancer -0.974148 0.679779
Viper 0.169679 1.530829
Visage -0.043581 -2.202185
Void Spirit 0.422050 -0.364691
Warlock -0.805207 0.196228
Weaver 0.767223 0.892541
Windranger -0.182553 1.008594
Winter Wyvern -1.209046 0.950568
Witch Doctor -0.875329 0.911884
Wraith King 1.076409 -0.442059
Zeus 0.123393 1.704907