diff --git a/data/pre_grouped.csv b/data/pre_grouped.csv
deleted file mode 100644
index 6e39ef3..0000000
--- a/data/pre_grouped.csv
+++ /dev/null
@@ -1,11 +0,0 @@
-"ID","group"
-"sub36",16
-"sub105",10
-"sub112",3
-"sub61",15
-"sub27",8
-"sub78",7
-"sub110",1
-"sub129",2
-"sub109",12
-"sub46",14
diff --git a/data/prioritized_sample.csv b/data/prioritized_sample.csv
deleted file mode 100644
index 7e8138c..0000000
--- a/data/prioritized_sample.csv
+++ /dev/null
@@ -1,134 +0,0 @@
-"ID","a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q"
-"sub1",,,3,,,,,5,,,1,4,,,,2,
-"sub2",,,,3,,5,,,,,,1,,2,,,4
-"sub3",4,,,,2,,3,,,,,,,,,5,1
-"sub4",,,,,2,,5,4,,,,1,,3,,,
-"sub5",,,,5,,,2,,4,,1,,,,,3,
-"sub6",,4,,,,,,,2,,1,,5,3,,,
-"sub7",3,,,,,4,,,,,1,,,,2,5,
-"sub8",,,,,2,,4,,1,,3,,,,,5,
-"sub9",,3,,,,,,,1,5,,,4,,,,2
-"sub10",,,,4,,,,,,3,,,5,,2,1,
-"sub11",,5,,4,,,2,,1,,,,,3,,,
-"sub12",,,2,5,,,,,,,,,3,4,,,1
-"sub13",,,,5,,,,,,,,1,,3,2,,4
-"sub14",,3,4,,,5,,,,,,,,,2,,1
-"sub15",4,,,,5,,,2,1,,,,,,,,3
-"sub16",5,,,2,4,,,,,,1,,,,3,,
-"sub17",,4,,,3,1,5,,,,,,,2,,,
-"sub18",,,,,1,2,,,3,5,,,,,,4,
-"sub19",,,4,,,,3,,1,,2,,,,5,,
-"sub20",,,2,,,,1,,,3,4,5,,,,,
-"sub21",5,4,,,,2,,,,,1,,,,,,3
-"sub22",,,,,1,,3,2,,,5,,,,4,,
-"sub23",1,,,,4,,,,,,,,3,,2,,5
-"sub24",,,5,,,,,,,,,1,4,2,,3,
-"sub25",2,5,,,,3,,,,,,,,,,1,4
-"sub26",,2,,5,,,4,,,,,,,,3,,1
-"sub27",,,,,3,2,,,5,,,,,4,,1,
-"sub28",,,5,,,,,4,,,1,,,2,,3,
-"sub29",2,,,,,3,,,1,,5,4,,,,,
-"sub30",,,,,,,1,,,4,,3,,,2,,5
-"sub31",,,3,,,,,,,5,,1,,4,,,2
-"sub32",3,,,,,,,,2,5,,1,,,4,,
-"sub33",,2,,,4,,1,5,,,,,,3,,,
-"sub34",,,3,1,,,,4,,,5,,,,,,2
-"sub35",1,4,,,,,,2,,,,,,,3,5,
-"sub36",,5,,3,,4,1,2,,,,,,,,,
-"sub37",,,4,,3,,,,,,,1,2,5,,,
-"sub38",,,,4,,,,3,,,,2,,1,5,,
-"sub39",5,,,,1,4,,2,,,,,,3,,,
-"sub40",,,,,4,2,5,1,,,,,,,3,,
-"sub41",,1,,,,3,,5,,,,4,2,,,,
-"sub42",,,,,,3,,,,,,1,5,,2,,4
-"sub43",,,,,,,,,,,1,,3,,4,2,5
-"sub44",,4,,,,,,,,,2,,,5,3,,1
-"sub45",2,3,,,,,4,,1,,,,,,,,5
-"sub46",,3,,,4,,,,,5,1,,,,,,2
-"sub47",,2,1,,5,,,,,3,,4,,,,,
-"sub48",,2,,,1,3,,,,,5,4,,,,,
-"sub49",,,,1,,,,3,,,,2,,,,4,5
-"sub50",3,,,,,,,5,,1,,,4,,,2,
-"sub51",,,1,3,4,,,,2,,,,,,,5,
-"sub52",,,1,,,,,,,4,5,,,,2,3,
-"sub53",,,,2,5,,,,,1,,3,,,,4,
-"sub54",,,,3,,,,,4,,,1,,2,,5,
-"sub55",,,2,,,,4,,,,,,1,3,5,,
-"sub56",,,,,,,,,3,,1,5,4,2,,,
-"sub57",,,4,,2,,1,,,,,3,,,,,5
-"sub58",,3,,,,,,,,,,4,,,1,5,2
-"sub59",,,,4,,,1,,3,,5,2,,,,,
-"sub60",,,,,,,,2,,,,1,3,5,,4,
-"sub61",,,1,,,3,,2,4,,,,,5,,,
-"sub62",1,2,,,,,,5,,4,,,,,,3,
-"sub63",,2,,,3,,4,,,,,,,5,,,1
-"sub64",,,5,,,1,2,,,,3,,,,,,4
-"sub65",1,,3,2,,,,,,4,,,5,,,,
-"sub66",,,,,,,1,,,,,2,,4,5,,3
-"sub67",4,5,,,,,2,,1,,,,,3,,,
-"sub68",3,,,2,5,,4,,,1,,,,,,,
-"sub69",5,,1,,,,4,,,,,3,,,2,,
-"sub70",,2,,,,5,1,,,,3,,4,,,,
-"sub71",5,,,,4,2,,1,,,3,,,,,,
-"sub72",5,,,4,1,,,,,,3,,,,,2,
-"sub73",5,3,,,,,,,4,,,1,,,2,,
-"sub74",,5,,2,,3,,,4,,,,,,,,1
-"sub75",,,,,,,,,4,1,,5,2,,,,3
-"sub76",,1,,,,,2,5,4,,,3,,,,,
-"sub77",5,,,,,,3,,,,,,,1,2,,4
-"sub78",4,,,,,,1,3,,2,,,,,,5,
-"sub79",,,,3,,,,,,,4,1,5,,2,,
-"sub80",,2,,,5,4,,,,,,,,,1,3,
-"sub81",,,4,,,,2,,1,,,3,,,,,5
-"sub82",5,,,,,,,2,4,,,3,,,,,1
-"sub83",,2,,,,,4,5,1,,,,,,3,,
-"sub84",,,,3,1,,,,,,2,,4,,,5,
-"sub85",,,,1,4,,,5,,,,,,,2,,3
-"sub86",,,3,,,,,5,1,,,2,4,,,,
-"sub87",,,,,2,5,4,,,,,,1,,,3,
-"sub88",,,,,,,,,,,,2,3,1,,4,5
-"sub89",,,5,2,,,4,,,,,,,1,,3,
-"sub90",,5,,1,,,,,,4,,3,,2,,,
-"sub91",5,,,,,3,,,4,,2,,,1,,,
-"sub92",,,,,,4,,5,,,2,,,,1,3,
-"sub93",,,,,1,,,,,4,2,,5,,,3,
-"sub94",1,,,,,,2,,,,,,4,5,,,3
-"sub95",,,,,4,2,3,,,5,,1,,,,,
-"sub96",,5,,2,,,1,,,,,3,,4,,,
-"sub97",1,3,,,,,,4,2,,,,,,5,,
-"sub98",,,5,,3,,,,,,1,,,2,4,,
-"sub99",,,4,,,,,5,,,,,1,3,2,,
-"sub100",,2,,,,4,5,,,3,,,1,,,,
-"sub101",,3,,1,2,,,,,,4,,,,,,5
-"sub102",1,,,2,,5,,,,,,3,,,,4,
-"sub103",,3,,,,,5,,1,,,,,2,,,4
-"sub104",,5,,4,,1,2,3,,,,,,,,,
-"sub105",,,,2,5,,,3,4,,1,,,,,,
-"sub106",,,,4,5,3,2,,,,,1,,,,,
-"sub107",2,1,3,,,,,,5,,4,,,,,,
-"sub108",,,4,,,,,,,1,,,5,,2,,3
-"sub109",,4,,,,,,2,1,,,5,,3,,,
-"sub110",,,,,3,,,,1,,,,,4,5,,2
-"sub111",,,,,,3,,,4,1,,,,,,2,5
-"sub112",,1,,,,,,,2,5,,,3,,,4,
-"sub113",,,3,,,,,,,,1,5,,4,2,,
-"sub114",,,,,1,3,,,,,5,,4,,2,,
-"sub115",,1,,,4,2,,,,,3,5,,,,,
-"sub116",,2,4,,,3,,5,1,,,,,,,,
-"sub117",,,,,,2,,,,4,,1,,5,,3,
-"sub118",,4,5,,,1,,,3,,,,,2,,,
-"sub119",5,,,3,,,1,,,4,,,2,,,,
-"sub120",1,2,4,,,,,,,,,,5,,,,3
-"sub121",,2,,,,5,,,,,,1,3,,,,4
-"sub122",3,,1,5,,,,,,,,4,,2,,,
-"sub123",,1,3,,,,4,5,,,,,,,,2,
-"sub124",,,2,,,4,,,,3,,,,,5,,1
-"sub125",,,,2,,,,,,,4,1,,5,,,3
-"sub126",,,,2,5,,3,,4,,,,,,,1,
-"sub127",4,,,,,1,2,,,,,,5,3,,,
-"sub128",,,,,1,4,,,,,,3,,,,2,5
-"sub129",,,,3,1,2,,4,,,,5,,,,,
-"sub130",4,,,,1,,,5,,3,2,,,,,,
-"sub131",,,,,1,3,,,,5,2,,,,,,4
-"sub132",,,,,2,,5,,,,3,,1,,,,4
-"sub133",,4,,,,,,3,,,,,,1,,2,5