> glimpse(powerliftingdata)
Observations: 386,414
Variables: 17
$ MeetID 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,...
$ Name "Angie Belk Terry", "Dawn Bogart", "Dawn Bogart", "Dawn Bogart", "Destiny Dula", "Courtney N...
$ Sex "F", "F", "F", "F", "F", "F", "F", "F", "F", "F", "F", "F", "F", "F", "F", "F", "F", "F", "F...
$ Equipment "Wraps", "Single-ply", "Single-ply", "Raw", "Raw", "Wraps", "Raw", "Raw", "Wraps", "Raw", "W...
$ Age 47, 42, 42, 42, 18, 28, 60, 60, 52, 52, 24, 56, 56, 54, 17, 32, 25, 18, 22, 56, 30, 44, 34, ...
$ Division "Mst 45-49", "Mst 40-44", "Open Senior", "Open Senior", "Teen 18-19", "Open Senior", "Mst 60...
$ BodyweightKg 59.60, 58.51, 58.51, 58.51, 63.68, 62.41, 67.31, 67.31, 65.95, 65.95, 65.50, 71.21, 71.21, 7...
$ WeightClassKg "60", "60", "60", "60", "67.5", "67.5", "67.5", "67.5", "67.5", "67.5", "67.5", "75", "75", ...
$ Squat4Kg NA, NA, NA, NA, NA, -183.7, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, -183.7, ...
$ BestSquatKg 47.63, 142.88, 142.88, NA, NA, 170.10, 124.74, 124.74, 120.20, NA, 138.35, 120.20, 120.20, 1...
$ Bench4Kg NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, ...
$ BestBenchKg 20.41, 95.25, 95.25, 95.25, 31.75, 77.11, 95.25, 95.25, 54.43, NA, 65.77, 43.09, 43.09, 74.8...
$ Deadlift4Kg NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, 204.12, NA, ...
$ BestDeadliftKg 70.31, 163.29, 163.29, NA, 90.72, 145.15, 163.29, 163.29, 108.86, 108.86, 136.08, 129.27, 12...
$ TotalKg 138.35, 401.42, 401.42, 95.25, 122.47, 392.36, 383.28, 383.28, 283.49, 108.86, 340.20, 292.5...
$ Place "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1...
$ Wilks 155.05, 456.38, 456.38, 108.29, 130.47, 424.40, 391.98, 391.98, 294.25, 112.99, 354.89, 287....