Re: Filling in ListPlot

• To: mathgroup at smc.vnet.net
• Subject: [mg105085] Re: Filling in ListPlot
• From: dh <dh at metrohm.com>
• Date: Fri, 20 Nov 2009 06:40:03 -0500 (EST)
• References: <he36dp\$eci\$1@smc.vnet.net>

```
fd wrote:

> All

>

> I'm having problems with Filling in ListPlot. I have two curves and

> would like different colors as one curve goes above the other, here

> goes the code;

>

> aris = {10000, 5000, 1000, 500, 100, 50, 20}; y = 10000;

>

> elist = Flatten[ConstantArray[#, IntegerPart[y/#]] & /@ aris];

>

> n = 1;

> ariList = Reverse[{N[y/n++], #} & /@ elist]

>

> ListLogLogPlot[{ariList, {{1, 1}, {100000, 100000}}},

>  PlotRange -> All, InterpolationOrder -> {0, 1}, Joined -> True,

>  Filling -> {2 -> {{1}, {Yellow, Orange}}}]

>

> If I define a interpolation function myself it works, but it is a bit

> of a nuisance

>

> f[x_] = Interpolation[ariList, InterpolationOrder -> 0][x];

>

> LogLogPlot[{f[x], x}, {x, 10, 10000},

>  Filling -> {2 -> {{1}, {Yellow, Orange}}}]

>

>

> Is there a way of making it work correctly with ListPlot ? Would this

> be a bug ?

>

> Best

> F.

>

>

>

>

>

>

>

Hi,

there seems to be a bug with interpolation and filling. The filling

seems not to take interpolation into account.

Consider the following, setting n1=10, 100, 1000, 10000:

n1 = 10;

ListLogLogPlot[{ariList, Table[{x, x}, {x, 1, 10000, n1}]},

PlotRange -> All, Joined -> True, InterpolationOrder -> {0, 1},

Filling -> {2 -> {{1}, {Red, Blue}}}]

Daniel

```

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