## Parsed with column specification:
## cols(
## .default = col_character(),
## ID = col_integer(),
## `HW1 (128208)` = col_double(),
## `HW2 (132130)` = col_double(),
## `HW3 (133849)` = col_double(),
## `HW4 (134896)` = col_double(),
## `HW5 (135018)` = col_double(),
## `HW6 (136778)` = col_double(),
## `HW7 (138363)` = col_double(),
## `HW8 (138364)` = col_double(),
## `HW9 (138365)` = col_double(),
## `HW10 (138366)` = col_double(),
## `HW11 (138367)` = col_double(),
## `HW12 (138368)` = col_double(),
## `HW13 (138369)` = col_double()
## )
## See spec(...) for full column specifications.
#str(grades, list.len=nrow(grades))
grades<-as.data.frame(grades)
grades
## id letter
## 1 90712470 A
## 2 10834945 A
## 3 40958959 A
## 4 71270599 A
## 5 30594673 A
## 6 11298397 A
## 7 71130053 A
## 8 70958422 A
## 9 21131253 A
## 10 91126001 A
## 11 60958130 A
## 12 61299734 A
## 13 30833058 A
## 14 61301739 A
## 15 11131638 A
## 16 80987579 A
## 17 10737923 A-
## 18 91301733 A-
## 19 31126037 A-
## 20 11172695 A-
## 21 91262886 A-
## 22 90920596 A-
## 23 81272085 A-
## 24 50917975 A-
## 25 61288554 A-
## 26 11289207 A-
## 27 81288763 A-
## 28 51241371 A-
## 29 21263052 A-
## 30 90967568 A-
## 31 21265586 A-
## 32 11290019 A-
## 33 11300626 A-
## 34 80640501 A-
## 35 20964944 A-
## 36 90901915 A-
## 37 11289673 A-
## 38 80969260 A-
## 39 50957640 A-
## 40 21127647 A-
## 41 41123540 A-
## 42 30832957 A-
## 43 10958768 B+
## 44 21263427 B+
## 45 41262737 B+
## 46 91126907 B+
## 47 90737937 B+
## 48 31266580 B+
## 49 40929371 B+
## 50 91295954 B+
## 51 81288992 B+
## 52 21127639 B+
## 53 81289638 B+
## 54 70975270 B+
## 55 71249921 B+
## 56 90741373 B+
## 57 71265722 B+
## 58 61262857 B+
## 59 20712198 B+
## 60 21288616 B+
## 61 20933658 B+
## 62 11268463 B+
## 63 81289352 B+
## 64 21289108 B
## 65 80978898 B
## 66 41292741 B
## 67 81301905 B
## 68 81301344 B
## 69 60972982 B
## 70 21289361 B
## 71 51272854 B
## 72 71267490 B
## 73 10885914 B
## 74 20619236 B
## 75 41128364 B
## 76 41262974 B
## 77 71299430 B
## 78 10714796 B
## 79 91126192 B
## 80 11291341 B
## 81 21289612 B
## 82 40763759 B
## 83 71301656 B
## 84 51290356 B
## 85 81300399 B-
## 86 31123178 B-
## 87 90679309 B-
## 88 40452729 B-
## 89 21269956 B-
## 90 80790716 B-
## 91 30643208 B-
## 92 60874891 B-
## 93 91301717 B-
## 94 80756313 B-
## 95 70888335 B-
## 96 31128390 C+
## 97 51275314 C+
## 98 41300868 C+
## 99 21267813 C+
## 100 31302161 C
## 101 91271214 C
## 102 11122914 C
## 103 71298396 C
## 104 60972273 C