I’m trying to sort just the 1st column of the following file (“dat0.txt”):
<code> 1.4 46 0.2
1.9 49 0.2
1.9 53 0.3
1.9 53 0.3
2.5 53 0.2
1.9 54 0.2
1.8 56 0.3
0.6 55 0.3
0.8 54 0.1
1.1 54 0.3
1.2 56 0
1.6 71 0
1.2 75 0.3
0.7 76 0.4
1.1 76 0.3
1.3 75 0.3
0.4 73 0.4
1.7 75 0.4
0.6 77 0.5
0.2 75 0.5
0.7 76 0.4
0.6 76 0.4
0.5 76 0.6
1 76 0.5
0.7 77 0.5
1.7 78 0.3
1.8 78 0.3
1.1 76 0.4
1.7 76 0.3
1.8 77 0.4
2 77 0.2
1.8 79 0.3
1.7 80 0.1
1.6 81 0.1
1.5 82 0.2
1.9 82 0.3
1.5 82 0.2
1.5 82 0.2
1.6 82 0.1
1.6 83 0.1
1.7 84 0.3
1.6 84 0.3
1.9 84 0.3
0.5 84 0.3
1.8 84 0.2
1.5 84 0.2
1.3 82 0.3
2.5 79 0.1
1.8 77 0.1
2.3 76 0.1
2.5 74 0.1
0.7 73 0
0.8 73 -0.1
1.5 76 0.1
1.4 78 0
1.9 79 0.1
0.9 79 0
0.9 80 0.2
1.7 78 0.1
2.4 73 0.1
2.6 70 0.1
3.1 69 0.2
3.2 67 0.4
2.2 64 0.2
2.3 64 0.5
2.9 61 0.5
2.2 61 0.1
2.1 66 0.4
2 68 0.2
1.8 67 0.6
3.9 65 0
3.5 65 1.1
4.2 56 0.8
3.8 60 0.2
2.6 65 0.8
6.6 70 -0.5
2 73 0.5
0.4 71 0.3
1.4 66 0.7
0.9 60 1.2
2 60 1
2.1 61 0.6
0.8 63 0.5
0.6 67 0.3
0.6 68 0.4
1.4 71 0.2
2.5 68 -0.1
2.3 70 0.2
1.1 73 0.1
0.7 77 0.3
0.8 78 0.3
0.3 78 0.2
1.2 79 0.1
2.1 82 0.1
0.8 82 0.2
0 79 0.3
0.1 78 0.2
0.6 79 0.2
0 80 0.2
1 81 0.2
1.4 81 0.4
0.8 81 0.3
1.4 81 0.3
1.1 81 0.2
0 81 0.3
0.7 81 0.2
0.9 80 0.1
0.6 80 0.4
0.3 76 0.6
0.2 73 0.4
0.4 74 0.6
0.1 75 0.8
0.1 74 0.7
0.9 70 0.7
1.7 66 1
1.5 60 1.3
1.6 57 1.4
0.5 54 1.1
0.9 50 0.8
0.8 46 1
1.5 45 0.9
2.1 45 1
2.6 43 0.9
4.3 43 1.1
4.6 44 1
4.7 44 0.7
5.5 44 0.9
4.3 45 1.1
4.7 46 0.9
4.1 46 0.9
4.1 48 0.8
4.7 52 0.7
3.9 53 0.6
3.8 54 0.3
3 54 0.4
3.2 57 0.3
2.8 61 0.4
1.7 62 0.3
1.8 63 0.3
0.9 65 0.3
1.3 68 0.3
1.8 69 0.3
1 69 0.4
0.8 68 0.3
0.7 68 0.2
0.5 69 0.2
0.1 70 0.3
0 70 0.3
0 69 0.3
1.5 71 0.1
0.7 72 0.1
0.8 74 0.3
0.9 74 0.2
0.3 75 0.1
0 74 0.1
0 74 0.1
0.1 75 0.3
0.3 74 0.4
0 72 0.7
0 66 0.2
0.1 61 -0.1
0.3 59 0.5
0.9 56 0.5
1.6 55 0.9
</code>
<code> 1.4 46 0.2
1.9 49 0.2
1.9 53 0.3
1.9 53 0.3
2.5 53 0.2
1.9 54 0.2
1.8 56 0.3
0.6 55 0.3
0.8 54 0.1
1.1 54 0.3
1.2 56 0
1.6 71 0
1.2 75 0.3
0.7 76 0.4
1.1 76 0.3
1.3 75 0.3
0.4 73 0.4
1.7 75 0.4
0.6 77 0.5
0.2 75 0.5
0.7 76 0.4
0.6 76 0.4
0.5 76 0.6
1 76 0.5
0.7 77 0.5
1.7 78 0.3
1.8 78 0.3
1.1 76 0.4
1.7 76 0.3
1.8 77 0.4
2 77 0.2
1.8 79 0.3
1.7 80 0.1
1.6 81 0.1
1.5 82 0.2
1.9 82 0.3
1.5 82 0.2
1.5 82 0.2
1.6 82 0.1
1.6 83 0.1
1.7 84 0.3
1.6 84 0.3
1.9 84 0.3
0.5 84 0.3
1.8 84 0.2
1.5 84 0.2
1.3 82 0.3
2.5 79 0.1
1.8 77 0.1
2.3 76 0.1
2.5 74 0.1
0.7 73 0
0.8 73 -0.1
1.5 76 0.1
1.4 78 0
1.9 79 0.1
0.9 79 0
0.9 80 0.2
1.7 78 0.1
2.4 73 0.1
2.6 70 0.1
3.1 69 0.2
3.2 67 0.4
2.2 64 0.2
2.3 64 0.5
2.9 61 0.5
2.2 61 0.1
2.1 66 0.4
2 68 0.2
1.8 67 0.6
3.9 65 0
3.5 65 1.1
4.2 56 0.8
3.8 60 0.2
2.6 65 0.8
6.6 70 -0.5
2 73 0.5
0.4 71 0.3
1.4 66 0.7
0.9 60 1.2
2 60 1
2.1 61 0.6
0.8 63 0.5
0.6 67 0.3
0.6 68 0.4
1.4 71 0.2
2.5 68 -0.1
2.3 70 0.2
1.1 73 0.1
0.7 77 0.3
0.8 78 0.3
0.3 78 0.2
1.2 79 0.1
2.1 82 0.1
0.8 82 0.2
0 79 0.3
0.1 78 0.2
0.6 79 0.2
0 80 0.2
1 81 0.2
1.4 81 0.4
0.8 81 0.3
1.4 81 0.3
1.1 81 0.2
0 81 0.3
0.7 81 0.2
0.9 80 0.1
0.6 80 0.4
0.3 76 0.6
0.2 73 0.4
0.4 74 0.6
0.1 75 0.8
0.1 74 0.7
0.9 70 0.7
1.7 66 1
1.5 60 1.3
1.6 57 1.4
0.5 54 1.1
0.9 50 0.8
0.8 46 1
1.5 45 0.9
2.1 45 1
2.6 43 0.9
4.3 43 1.1
4.6 44 1
4.7 44 0.7
5.5 44 0.9
4.3 45 1.1
4.7 46 0.9
4.1 46 0.9
4.1 48 0.8
4.7 52 0.7
3.9 53 0.6
3.8 54 0.3
3 54 0.4
3.2 57 0.3
2.8 61 0.4
1.7 62 0.3
1.8 63 0.3
0.9 65 0.3
1.3 68 0.3
1.8 69 0.3
1 69 0.4
0.8 68 0.3
0.7 68 0.2
0.5 69 0.2
0.1 70 0.3
0 70 0.3
0 69 0.3
1.5 71 0.1
0.7 72 0.1
0.8 74 0.3
0.9 74 0.2
0.3 75 0.1
0 74 0.1
0 74 0.1
0.1 75 0.3
0.3 74 0.4
0 72 0.7
0 66 0.2
0.1 61 -0.1
0.3 59 0.5
0.9 56 0.5
1.6 55 0.9
</code>
1.4 46 0.2
1.9 49 0.2
1.9 53 0.3
1.9 53 0.3
2.5 53 0.2
1.9 54 0.2
1.8 56 0.3
0.6 55 0.3
0.8 54 0.1
1.1 54 0.3
1.2 56 0
1.6 71 0
1.2 75 0.3
0.7 76 0.4
1.1 76 0.3
1.3 75 0.3
0.4 73 0.4
1.7 75 0.4
0.6 77 0.5
0.2 75 0.5
0.7 76 0.4
0.6 76 0.4
0.5 76 0.6
1 76 0.5
0.7 77 0.5
1.7 78 0.3
1.8 78 0.3
1.1 76 0.4
1.7 76 0.3
1.8 77 0.4
2 77 0.2
1.8 79 0.3
1.7 80 0.1
1.6 81 0.1
1.5 82 0.2
1.9 82 0.3
1.5 82 0.2
1.5 82 0.2
1.6 82 0.1
1.6 83 0.1
1.7 84 0.3
1.6 84 0.3
1.9 84 0.3
0.5 84 0.3
1.8 84 0.2
1.5 84 0.2
1.3 82 0.3
2.5 79 0.1
1.8 77 0.1
2.3 76 0.1
2.5 74 0.1
0.7 73 0
0.8 73 -0.1
1.5 76 0.1
1.4 78 0
1.9 79 0.1
0.9 79 0
0.9 80 0.2
1.7 78 0.1
2.4 73 0.1
2.6 70 0.1
3.1 69 0.2
3.2 67 0.4
2.2 64 0.2
2.3 64 0.5
2.9 61 0.5
2.2 61 0.1
2.1 66 0.4
2 68 0.2
1.8 67 0.6
3.9 65 0
3.5 65 1.1
4.2 56 0.8
3.8 60 0.2
2.6 65 0.8
6.6 70 -0.5
2 73 0.5
0.4 71 0.3
1.4 66 0.7
0.9 60 1.2
2 60 1
2.1 61 0.6
0.8 63 0.5
0.6 67 0.3
0.6 68 0.4
1.4 71 0.2
2.5 68 -0.1
2.3 70 0.2
1.1 73 0.1
0.7 77 0.3
0.8 78 0.3
0.3 78 0.2
1.2 79 0.1
2.1 82 0.1
0.8 82 0.2
0 79 0.3
0.1 78 0.2
0.6 79 0.2
0 80 0.2
1 81 0.2
1.4 81 0.4
0.8 81 0.3
1.4 81 0.3
1.1 81 0.2
0 81 0.3
0.7 81 0.2
0.9 80 0.1
0.6 80 0.4
0.3 76 0.6
0.2 73 0.4
0.4 74 0.6
0.1 75 0.8
0.1 74 0.7
0.9 70 0.7
1.7 66 1
1.5 60 1.3
1.6 57 1.4
0.5 54 1.1
0.9 50 0.8
0.8 46 1
1.5 45 0.9
2.1 45 1
2.6 43 0.9
4.3 43 1.1
4.6 44 1
4.7 44 0.7
5.5 44 0.9
4.3 45 1.1
4.7 46 0.9
4.1 46 0.9
4.1 48 0.8
4.7 52 0.7
3.9 53 0.6
3.8 54 0.3
3 54 0.4
3.2 57 0.3
2.8 61 0.4
1.7 62 0.3
1.8 63 0.3
0.9 65 0.3
1.3 68 0.3
1.8 69 0.3
1 69 0.4
0.8 68 0.3
0.7 68 0.2
0.5 69 0.2
0.1 70 0.3
0 70 0.3
0 69 0.3
1.5 71 0.1
0.7 72 0.1
0.8 74 0.3
0.9 74 0.2
0.3 75 0.1
0 74 0.1
0 74 0.1
0.1 75 0.3
0.3 74 0.4
0 72 0.7
0 66 0.2
0.1 61 -0.1
0.3 59 0.5
0.9 56 0.5
1.6 55 0.9
If I run the following script
<code>reset session
FILE = "dat0.txt"
set xrange [*:*]
set yrange [*:*]
set format x
set format y ""
set table $Data0
plot FILE u 1:2:1 smooth zsort
unset table
</code>
<code>reset session
FILE = "dat0.txt"
set xrange [*:*]
set yrange [*:*]
set format x
set format y ""
set table $Data0
plot FILE u 1:2:1 smooth zsort
unset table
</code>
reset session
FILE = "dat0.txt"
set xrange [*:*]
set yrange [*:*]
set format x
set format y ""
set table $Data0
plot FILE u 1:2:1 smooth zsort
unset table
with gnuplot 5.4 for windows, everything goes well: I’ve got the 1st column well sorted, followed by the R character i. With version 6.0 instead, the first columns gets doubled:
<code> 0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0.1 0.1 i
0.1 0.1 i
0.1 0.1 i
0.1 0.1 i
0.1 0.1 i
0.1 0.1 i
0.2 0.2 i
0.2 0.2 i
0.3 0.3 i
0.3 0.3 i
0.3 0.3 i
0.3 0.3 i
0.3 0.3 i
0.4 0.4 i
0.4 0.4 i
0.4 0.4 i
0.5 0.5 i
0.5 0.5 i
0.5 0.5 i
0.5 0.5 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
1 1 i
1 1 i
1 1 i
1.1 1.1 i
1.1 1.1 i
1.1 1.1 i
1.1 1.1 i
1.1 1.1 i
1.2 1.2 i
1.2 1.2 i
1.2 1.2 i
1.3 1.3 i
1.3 1.3 i
1.3 1.3 i
1.4 1.4 i
1.4 1.4 i
1.4 1.4 i
1.4 1.4 i
1.4 1.4 i
1.4 1.4 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
2 2 i
2 2 i
2 2 i
2 2 i
2.1 2.1 i
2.1 2.1 i
2.1 2.1 i
2.1 2.1 i
2.2 2.2 i
2.2 2.2 i
2.3 2.3 i
2.3 2.3 i
2.3 2.3 i
2.4 2.4 i
2.5 2.5 i
2.5 2.5 i
2.5 2.5 i
2.5 2.5 i
2.6 2.6 i
2.6 2.6 i
2.6 2.6 i
2.8 2.8 i
2.9 2.9 i
3 3 i
3.1 3.1 i
3.2 3.2 i
3.2 3.2 i
3.5 3.5 i
3.8 3.8 i
3.8 3.8 i
3.9 3.9 i
3.9 3.9 i
4.1 4.1 i
4.1 4.1 i
4.2 4.2 i
4.3 4.3 i
4.3 4.3 i
4.6 4.6 i
4.7 4.7 i
4.7 4.7 i
4.7 4.7 i
5.5 5.5 i
6.6 6.6 i
</code>
<code> 0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0.1 0.1 i
0.1 0.1 i
0.1 0.1 i
0.1 0.1 i
0.1 0.1 i
0.1 0.1 i
0.2 0.2 i
0.2 0.2 i
0.3 0.3 i
0.3 0.3 i
0.3 0.3 i
0.3 0.3 i
0.3 0.3 i
0.4 0.4 i
0.4 0.4 i
0.4 0.4 i
0.5 0.5 i
0.5 0.5 i
0.5 0.5 i
0.5 0.5 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
1 1 i
1 1 i
1 1 i
1.1 1.1 i
1.1 1.1 i
1.1 1.1 i
1.1 1.1 i
1.1 1.1 i
1.2 1.2 i
1.2 1.2 i
1.2 1.2 i
1.3 1.3 i
1.3 1.3 i
1.3 1.3 i
1.4 1.4 i
1.4 1.4 i
1.4 1.4 i
1.4 1.4 i
1.4 1.4 i
1.4 1.4 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
2 2 i
2 2 i
2 2 i
2 2 i
2.1 2.1 i
2.1 2.1 i
2.1 2.1 i
2.1 2.1 i
2.2 2.2 i
2.2 2.2 i
2.3 2.3 i
2.3 2.3 i
2.3 2.3 i
2.4 2.4 i
2.5 2.5 i
2.5 2.5 i
2.5 2.5 i
2.5 2.5 i
2.6 2.6 i
2.6 2.6 i
2.6 2.6 i
2.8 2.8 i
2.9 2.9 i
3 3 i
3.1 3.1 i
3.2 3.2 i
3.2 3.2 i
3.5 3.5 i
3.8 3.8 i
3.8 3.8 i
3.9 3.9 i
3.9 3.9 i
4.1 4.1 i
4.1 4.1 i
4.2 4.2 i
4.3 4.3 i
4.3 4.3 i
4.6 4.6 i
4.7 4.7 i
4.7 4.7 i
4.7 4.7 i
5.5 5.5 i
6.6 6.6 i
</code>
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0 0 i
0.1 0.1 i
0.1 0.1 i
0.1 0.1 i
0.1 0.1 i
0.1 0.1 i
0.1 0.1 i
0.2 0.2 i
0.2 0.2 i
0.3 0.3 i
0.3 0.3 i
0.3 0.3 i
0.3 0.3 i
0.3 0.3 i
0.4 0.4 i
0.4 0.4 i
0.4 0.4 i
0.5 0.5 i
0.5 0.5 i
0.5 0.5 i
0.5 0.5 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.6 0.6 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.7 0.7 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.8 0.8 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
0.9 0.9 i
1 1 i
1 1 i
1 1 i
1.1 1.1 i
1.1 1.1 i
1.1 1.1 i
1.1 1.1 i
1.1 1.1 i
1.2 1.2 i
1.2 1.2 i
1.2 1.2 i
1.3 1.3 i
1.3 1.3 i
1.3 1.3 i
1.4 1.4 i
1.4 1.4 i
1.4 1.4 i
1.4 1.4 i
1.4 1.4 i
1.4 1.4 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.5 1.5 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.6 1.6 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.7 1.7 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.8 1.8 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
1.9 1.9 i
2 2 i
2 2 i
2 2 i
2 2 i
2.1 2.1 i
2.1 2.1 i
2.1 2.1 i
2.1 2.1 i
2.2 2.2 i
2.2 2.2 i
2.3 2.3 i
2.3 2.3 i
2.3 2.3 i
2.4 2.4 i
2.5 2.5 i
2.5 2.5 i
2.5 2.5 i
2.5 2.5 i
2.6 2.6 i
2.6 2.6 i
2.6 2.6 i
2.8 2.8 i
2.9 2.9 i
3 3 i
3.1 3.1 i
3.2 3.2 i
3.2 3.2 i
3.5 3.5 i
3.8 3.8 i
3.8 3.8 i
3.9 3.9 i
3.9 3.9 i
4.1 4.1 i
4.1 4.1 i
4.2 4.2 i
4.3 4.3 i
4.3 4.3 i
4.6 4.6 i
4.7 4.7 i
4.7 4.7 i
4.7 4.7 i
5.5 5.5 i
6.6 6.6 i
Is that a bug or am I doing anything wrong ?