Re: Frame on Bar Chart

• To: mathgroup at smc.vnet.net
• Subject: [mg29604] Re: [mg29584] Frame on Bar Chart
• From: "Philip M. Howe" <pmhowe at lanl.gov>
• Date: Thu, 28 Jun 2001 05:27:56 -0400 (EDT)
• References: <200106270912.FAA04002@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```>Dear Mathgroup,
>
>I wish to plot my students exam results on a bar chart.
>
>I am fussy and think a frame around the plot looks more professional than
>two individual axes and it also enables me to have centred frame labels.
>
>I have thus tried the following
>
>In[1]:=
>data =
>{60,82,81,64,40,48,52,91,57,44,64,41,53,49,37,66,55,76,69,57,48,46,61,67,66,
>43,86,74,73,56,77,66,81,72,55,45,71,59,45,68,72,64,90,71,76,71,65,82,76,67,18,
>70,60,88,57,87,93};
>
>In[2]:=
><< "Statistics`DescriptiveStatistics`"
>
>In[3]:=
><< "Graphics`Graphics`"
>
>In[4]:=
>dx = 4;
>freq = BinCounts[data, {0, 100, dx}];
>midpoints = Table[i, {i, 0, 100 - dx, dx}];
>
>In[7]:=
>a = BarChart[Transpose[{freq, midpoints}], Frame -> True, Axes -> False,
>     PlotRange -> {All, {-0.5, 10}}, FrameLabel -> {"Marks (%)", "Number of
>Candidates"}];
>
>In[10]:=
>a = BarChart[Transpose[{freq, midpoints}], Frame -> True, Axes -> False,
>     FrameTicks -> {True, True, False, False}, PlotRange -> {All, {-0.5, 10}},
>     FrameLabel -> {"Marks (%)", "Number of Candidates"}];
>
>The first bar chart puts numbers along the top of the frame which I do not
>want. To get rid of this I tried the second set of options. This looses the
>midpoint values and plots against point number instead.
>
>I could get the ticks from AbsoluteOptions applied to the first plot and
>put them into the second but I feel that there should be a less roundabout
>method.
>
>
>Hugh Goyder

Hello Hugh,

<< Graphics`Graphics`

data = {60, 82, 81, 64, 40, 48, 52, 91, 57, 44, 64, 41, 53, 49, 37, 66, 55,
76, 69, 57, 48, 46, 61, 67, 66, 43, 86, 74, 73, 56, 77, 66, 81, 72, 55,
45, 71, 59, 45, 68, 72, 64, 90, 71, 76, 71, 65, 82, 76, 67, 18, 70, 60,
88, 57, 87, 93};

Histogram[data];

Histogram[data,
HistogramCategories -> {0, 5, 10, 15, 20, 25, 40, 45, 50, 55, 60, 65, 70,
75, 80, 85, 90, 95}, Frame -> True];

Regards,

Phil
--
Philip M. Howe
Program Manager, Stockpile Surety
Los Alamos National Laboratory

(505) 665-5332
(505) 667-9498
Fax: 505-665-5249
email pmhowe at lanl.gov
Mail Stop F606

```

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