Bump kmeans dependency to v0.2.1

Author: muesli

go.mod

@@ -5,6 +5,6 @@ go 1.15
 require (
 	github.com/lucasb-eyer/go-colorful v1.0.3
 	github.com/muesli/clusters v0.0.0-20200529215643-2700303c1762
-	github.com/muesli/kmeans v0.0.0-20200718051629-66f1657148c0
+	github.com/muesli/kmeans v0.2.1
 	github.com/xrash/smetrics v0.0.0-20200730060457-89a2a8a1fb0b
 )

go.sum

@@ -1,6 +1,4 @@
 github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
-github.com/blend/go-sdk v2.0.0+incompatible h1:FL9X/of4ZYO5D2JJNI4vHrbXPfuSDbUa7h8JP9+E92w=
-github.com/blend/go-sdk v2.0.0+incompatible/go.mod h1:3GUb0YsHFNTJ6hsJTpzdmCUl05o8HisKjx5OAlzYKdw=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
 github.com/lucasb-eyer/go-colorful v1.0.2/go.mod h1:0MS4r+7BZKSJ5mw4/S5MPN+qHFF1fYclkSPilDOKW0s=
@@ -9,12 +7,12 @@ github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i
 github.com/muesli/clusters v0.0.0-20180605185049-a07a36e67d36/go.mod h1:mw5KDqUj0eLj/6DUNINLVJNoPTFkEuGMHtJsXLviLkY=
 github.com/muesli/clusters v0.0.0-20200529215643-2700303c1762 h1:p4A2Jx7Lm3NV98VRMKlyWd3nqf8obft8NfXlAUmqd3I=
 github.com/muesli/clusters v0.0.0-20200529215643-2700303c1762/go.mod h1:mw5KDqUj0eLj/6DUNINLVJNoPTFkEuGMHtJsXLviLkY=
-github.com/muesli/kmeans v0.0.0-20200718051629-66f1657148c0 h1:xptegMPjfY9TDf49s3E5QFV1dZeA3acCq9IKTGirMLo=
-github.com/muesli/kmeans v0.0.0-20200718051629-66f1657148c0/go.mod h1:+s8P1Egy3DkSU5+p4yBBn9SQQP1RhzZEgLw98DNYljQ=
-github.com/wcharczuk/go-chart v2.0.2-0.20191206192251-962b9abdec2b+incompatible h1:ahpaSRefPekV3gcXot2AOgngIV8WYqzvDyFe3i7W24w=
-github.com/wcharczuk/go-chart v2.0.2-0.20191206192251-962b9abdec2b+incompatible/go.mod h1:PF5tmL4EIx/7Wf+hEkpCqYi5He4u90sw+0+6FhrryuE=
+github.com/muesli/kmeans v0.2.1 h1:ja5AnwfyDCVBCANrAfXr2pOh292FQnSeu1lySACDJU0=
+github.com/muesli/kmeans v0.2.1/go.mod h1:eNyybq0tX9/iBEP6EMU4Y7dpmGK0uEhODdZpnG1a/iQ=
+github.com/wcharczuk/go-chart/v2 v2.1.0 h1:tY2slqVQ6bN+yHSnDYwZebLQFkphK4WNrVwnt7CJZ2I=
+github.com/wcharczuk/go-chart/v2 v2.1.0/go.mod h1:yx7MvAVNcP/kN9lKXM/NTce4au4DFN99j6i1OwDclNA=
 github.com/xrash/smetrics v0.0.0-20200730060457-89a2a8a1fb0b h1:tnWgqoOBmInkt5pbLjagwNVjjT4RdJhFHzL1ebCSRh8=
 github.com/xrash/smetrics v0.0.0-20200730060457-89a2a8a1fb0b/go.mod h1:N3UwUGtsrSj3ccvlPHLoLsHnpR27oXr4ZE984MbSER8=
-golang.org/x/image v0.0.0-20190501045829-6d32002ffd75 h1:TbGuee8sSq15Iguxu4deQ7+Bqq/d2rsQejGcEtADAMQ=
-golang.org/x/image v0.0.0-20190501045829-6d32002ffd75/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
+golang.org/x/image v0.0.0-20200927104501-e162460cd6b5 h1:QelT11PB4FXiDEXucrfNckHoFxwt8USGY1ajP1ZF5lM=
+golang.org/x/image v0.0.0-20200927104501-e162460cd6b5/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=