       List operation, LabeledListPlot, Goto Statement

• To: mathgroup at smc.vnet.net
• Subject: [mg36739] List operation, LabeledListPlot, Goto Statement
• From: "Alexandre Costa" <costa at fem.unicamp.br>
• Date: Sat, 21 Sep 2002 02:22:10 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

```Dear Group,

It is a pleasure write to you again. I have three questions to ask.

Thanks for any enlightenment on these subjects.

Alexandre Costa

Question One: The below code is working fine but I think there are more
elegant ways of doing so.

Any suggestions are VERY WELCOME.

<< DiscreteMath`Permutations`

individual1 = RandomPermutation
individual2 = RandomPermutation

CutPosition = 3 ;
CutLength = 4 ;
CutSequence = Take[Drop[individual1, CutPosition], CutLength]

SonOne = individual2;
Do[
If[MemberQ[SonOne, CutSequence[[i]]],
SonOne = Delete[SonOne, Position[SonOne, CutSequence[[i]]]]],
{i, 1,
CutLength}];
SonOne
SonOne = RotateLeft[SonOne, 1]
Do[SonOne = Insert[SonOne, Reverse[CutSequence][[i]], CutPosition +
1], {i, 1,
CutLength}]
SonOne

Question Two:

How can I change points properties (such as Size and Color) for the plot
below?  The PlotStyle Option does not work for this LabeledListPlot

<< Graphics`Graphics`

listcities = {{1, 5}, {4, 6}, {7, 5}, {5, 4}, {9, 4}, {2, 3}, {4, 2},
{6, 2}, {1, 1}, {5, 1}, {3, 0}, {9, 0}};

LabeledListPlot[listcities, Axes -> None, Frame -> True,
GridLines -> Automatic, PlotRange -> All,
DisplayFunction -> \$DisplayFunction]

Question Three: Why the Goto statement below is not working?

q = 2;
Label[start];
q  = 3;
Label[begin];
Print[q];
q += 1; If[q < 6, Goto[begin], Goto[start]]

```

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