Re: Problem with PlotLegend in Mathematica 6.0

• To: mathgroup at smc.vnet.net
• Subject: [mg78039] Re: Problem with PlotLegend in Mathematica 6.0
• From: Peter Breitfeld <phbrf at t-online.de>
• Date: Thu, 21 Jun 2007 06:01:00 -0400 (EDT)
• References: <f5atgq\$apg\$1@smc.vnet.net>

```peter.steneteg at gmail.com schrieb:
> I can not figure out why I get different results for these two cases.
>
> Needs["PlotLegends`"]
> fn = {Sin[x], Cos[x]}
> Plot[fn, {x, 0, 2 Pi}, PlotLegend -> {"sin", "cos"}]
> Plot[{Sin[x], Cos[x]}, {x, 0, 2 Pi}, PlotLegend -> {"sin", "cos"}]
>
> When i use Plot[fn,... the Legend will only show one line, "sin" but
> if I use the later case with Plot[{Sin[x],Cos[x]},... the Legend will
> show correctly. Does anyone have any idea why this happens. And if
> there are any solution?
>
>
You should use Evaluate[fn] in the first case. Because Plot has the
attribute HoldAll, PlotLegend otherwise can't see that fn is a list.

Gruss Peter
--
==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==
Peter Breitfeld, Bad Saulgau, Germany -- http://www.pBreitfeld.de

```

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