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Error message

  • To: mathgroup at smc.vnet.net
  • Subject: [mg77849] Error message
  • From: Robert Pigeon <robert.pigeon at videotron.ca>
  • Date: Mon, 18 Jun 2007 06:59:25 -0400 (EDT)

Good day all,

  Could you help me understand the error message I get when evaluating the
following notebook ?



----------------------------------------------------------------------------

Needs["PlotLegends`"]



cf := 1.33 / Sqrt[re]



cft := 0.0306 / (re)^(1/7)



cm := cft =96 (2924 / re)  for re >= 10^6





ShowLegend[

 LogLogPlot[{cf,cft,cm},{re,104,107},

  PlotRange=AE{{104,107},{0.0003,0.02}},

  PlotLabel=AE"Skin friction coefficient vs Re",

  PlotStyle=AE{Blue,Red,{Purple,Dashed}},

  Frame=AETrue,

  FrameLabel=AE{"Re","Skin friction coefficient CF"},

  GridLines=AE{Automatic,Automatic},

  BaseStyle=AE{FontSize=AE12,FontWeight=AE"Bold"},

  ImageSize=AE600],

 {

  {{Graphics[{Blue,Line[{{0,0},{5,0}}]}],"=C9coulement laminaire"},

   {Graphics[{Red,Line[{{0,0},{5,0}}]}],"=C9coulement
turbulent"},{Graphics[{Directive[Purple,Dashed],Line[{{0,0},{5,0}}]}],"=C9 coulement mixte"}},

  LegendSize=AE{0.7,0.2},

  LegendPosition=AE{0,-0.85},

  BaseStyle=AE{FontSize=AE12,FontWeight=AE"Bold"}

  }

 ]





When I run this I get the following error message: Ticks::ticks: (<<1>>) is
not a valid tick specification.



But I am not using Ticks explicitly. If I add Ticks I get the same error.



Now, if I change the command and not use ShowLegend then everything is
correct. Or if I change LogLogPlot to just Plot, I do not get the error
message and, in both cases the graph is correct.



It seems that the legend position is confused with the LogLogPlot command.



Any idea ?



Thanks for your help,



Robert



Robert Pigeon



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