There is no correlation between Duration and kda and there are no clusters. The values are standardized.
Duration kda
Abaddon -0.906268 0.009813
Alchemist -0.558111 -0.511700
Ancient Apparition 2.053064 -0.039855
Anti-Mage 0.022150 0.357489
Arc Warden 0.370306 1.251512
Axe 0.969910 -0.760040
Bane 0.157544 -0.983546
Batrider -0.306665 -1.082881
Beastmaster -2.028106 -0.933878
Bloodseeker 1.163330 0.233319
Bounty Hunter -0.442059 -0.362696
Brewmaster -0.809558 0.754833
Bristleback 0.757147 -0.462032
Broodmother -3.207971 -1.902403
Centaur Warrunner 0.118860 0.332655
Chaos Knight -0.809558 0.034647
Chen -2.550341 -0.362696
Clinkz -0.267981 -0.139190
Clockwerk 0.428333 -0.586202
Crystal Maiden 0.312280 -1.554727
Dark Seer 0.234912 0.531327
Dark Willow 0.931226 -0.263360
Dawnbreaker -0.674164 0.556161
Dazzle -0.577453 -1.405723
Death Prophet 0.041492 0.133983
Disruptor 0.234912 -0.387530
Doom 0.718463 -1.182217
Dragon Knight -0.055218 -0.188858
Drow Ranger 1.143988 0.009813
Earth Spirit -0.577453 -0.462032
Earthshaker 0.873199 -0.238526
Elder Titan 1.163330 -0.536534
Ember Spirit -0.016534 1.499852
Enchantress 0.544385 -0.933878
Enigma 0.583069 -1.902403
Faceless Void 1.027936 1.152176
Grimstroke 0.118860 -0.263360
Gyrocopter -0.422717 0.282987
Hoodwink 1.105304 0.506493
Huskar -1.351135 -1.952071
Invoker 0.621753 1.698524
Io -2.975866 -0.313028
Jakiro 0.583069 -0.834542
Juggernaut -0.403375 0.059481
Keeper of the Light 0.234912 0.307821
Kunkka 0.931226 1.052840
Legion Commander -0.345349 -0.611036
Leshrac -0.229297 -1.082881
Lich 0.834515 -0.784874
Lifestealer -0.480743 0.456825
Lina 0.718463 -0.337862
Lion 0.525043 -1.852735
Lone Druid -3.072576 0.953504
Luna -0.654822 -0.611036
Lycan -2.453631 1.152176
Magnus -0.209955 -0.660704
Marci -1.583239 -1.182217
Mars -0.074560 -0.139190
Medusa 1.820959 1.773026
Meepo -2.975866 -0.238526
Mirana 0.408991 0.705165
Monkey King -0.267981 -0.511700
Morphling -1.389819 0.531327
Muerta 1.105304 0.158817
Naga Siren -0.538769 1.723358
Nature's Prophet -0.209955 0.034647
Necrophos -0.229297 0.655497
Night Stalker -0.538769 1.003172
Nyx Assassin 0.679779 -0.685538
Ogre Magi 0.254254 -0.635870
Omniknight -0.616138 -0.884210
Oracle -1.177057 0.258153
Outworld Destroyer -0.074560 0.829335
Pangolier 0.022150 0.903837
Phantom Assassin -0.461401 0.729999
Phantom Lancer 0.757147 1.574354
Phoenix 0.254254 -0.139190
Primal Beast -0.035876 0.407157
Puck -0.074560 1.276346
Pudge -0.055218 -1.281553
Pugna 0.118860 -0.586202
Queen of Pain 0.602411 1.922029
Razor 0.467017 0.109149
Riki 0.950568 1.475018
Rubick 0.583069 -0.685538
Sand King 1.260040 -0.337862
Shadow Demon 0.602411 -0.859376
Shadow Fiend -0.944952 -0.635870
Shadow Shaman 0.157544 -1.803067
Silencer 0.679779 -0.362696
Skywrath Mage 0.563727 -0.462032
Slardar -0.229297 -0.288194
Slark -0.113245 0.183651
Snapfire 0.312280 -0.337862
Sniper 1.530829 0.978338
Spectre 1.318066 3.859080
Spirit Breaker -0.035876 0.407157
Storm Spirit 0.234912 0.879003
Sven -0.055218 0.630663
Techies 1.898327 -1.803067
Templar Assassin -0.944952 0.705165
Terrorblade -0.248639 -0.164024
Tidehunter -0.209955 0.183651
Timbersaw 0.041492 -0.710372
Tinker 0.718463 1.475018
Tiny -0.055218 -0.511700
Treant Protector -0.732190 0.307821
Troll Warlord -0.693506 -0.561368
Tusk -0.403375 -0.387530
Underlord 0.215570 -0.164024
Undying -0.074560 -0.089522
Ursa 0.292938 -0.015021
Vengeful Spirit -0.809558 -1.380889
Venomancer 0.679779 -0.536534
Viper 1.530829 -0.164024
Visage -2.202185 0.953504
Void Spirit -0.364691 1.077674
Warlock 0.196228 0.605829
Weaver 0.892541 1.350848
Windranger 1.008594 0.034647
Winter Wyvern 0.950568 -1.331221
Witch Doctor 0.911884 -1.455391
Wraith King -0.442059 1.400516
Zeus 1.704907 3.387234