In the awk below I am trying to get the average of the sum of $7 if the string in $4 matches in the line below it. The --- in the desired out is not needed, it is just to illustrate the calculation. The awk executes and produces the current out. I am not sure why the middle line is skipped and the math seems to be off slightly.
All the numbers come from the tab-delimeted file and if string in $4 matches in the line below it then the average of the sum of $7 is printed along with the $5 value of the matching lines. The output is then sorted in natural ordering. Thank you :).
awk -F'\t' '{gene[$4]=$5; sum[$4]+=$7; count[$4]++}
END{for(k in sum) printf "%s\t%s\t%.1f\n", k, gene[k], sum[k]/count[k]}' file_less | sort -k1,1 -V -s > out
current out
chr1:1167485-1167705 B3GALT6 13.0
chr1:1167605-1167825 B3GALT6 11.0
desired out
chr1:1167485-1167705 B3GALT6 14.5 --- (680/47)
chr1:1167573-1167679 B3GALT6 12.4 --- (1323/107)
chr1:1167605-1167825 B3GALT6 11.0 --- (811/74)
file
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 1 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 2 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 3 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 4 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 5 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 6 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 7 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 8 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 9 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 10 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 11 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 12 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 13 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 14 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 15 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 16 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 17 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 18 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 19 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 20 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 21 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 22 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 23 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 24 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 25 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 26 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 27 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 28 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 29 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 30 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 31 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 32 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 33 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 34 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 35 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 36 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 37 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 38 16
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 39 16
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 40 16
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 41 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 42 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 43 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 44 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 45 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 46 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 47 19
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 88 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 89 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 90 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 91 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 92 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 93 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 94 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 95 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 96 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 97 18
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 98 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 99 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 100 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 101 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 102 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 103 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 104 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 105 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 106 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 107 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 108 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 109 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 110 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 111 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 112 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 113 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 114 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 115 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 116 13
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 117 12
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 118 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 119 7
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 120 8
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 121 8
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 122 8
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 123 8
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 124 7
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 125 8
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 126 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 127 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 128 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 129 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 130 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 131 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 132 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 133 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 134 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 135 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 136 8
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 137 8
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 138 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 139 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 140 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 141 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 142 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 143 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 144 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 145 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 146 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 147 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 148 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 149 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 150 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 151 8
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 152 7
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 153 7
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 154 6
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 155 7
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 156 7
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 157 6
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 158 7
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 159 7
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 160 8
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 161 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 162 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 163 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 164 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 165 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 166 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 167 9
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 168 11
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 169 11
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 170 12
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 171 12
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 172 12
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 173 14
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 174 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 175 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 176 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 177 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 178 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 179 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 180 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 181 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 182 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 183 15
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 184 16
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 185 16
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 186 16
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 187 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 188 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 189 17
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 190 19
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 191 19
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 192 19
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 193 19
chr1 1167485 1167705 chr1:1167485-1167705 B3GALT6 194 19
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 1 8
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 2 8
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 3 8
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 4 7
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 5 8
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 6 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 7 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 8 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 9 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 10 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 11 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 12 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 13 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 14 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 15 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 16 8
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 17 8
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 18 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 19 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 20 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 21 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 22 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 23 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 24 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 25 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 26 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 27 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 28 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 29 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 30 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 31 8
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 32 7
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 33 7
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 34 6
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 35 7
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 36 7
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 37 6
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 38 7
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 39 7
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 40 8
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 41 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 42 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 43 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 44 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 45 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 46 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 47 9
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 48 11
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 49 11
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 50 12
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 51 12
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 52 12
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 53 14
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 54 15
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 55 15
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 56 15
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 57 15
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 58 15
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 59 15
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 60 15
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 61 15
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 62 15
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 63 15
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 64 16
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 65 16
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 66 16
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 67 17
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 68 17
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 69 17
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 70 19
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 71 19
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 72 19
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 73 19
chr1 1167605 1167825 chr1:1167605-1167825 B3GALT6 74 19
I apologize for the long post, but I am not sure why bit line 1 and line 2 seem to be getting grouped together, that is the values in $7 for both the lines seems to be getting summed together ($7=2003/total lines=154)