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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/Graphics-Rendering-Chart-Plot-Histogram.html">Source</a></li><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">Chart-1.8.1: A library for generating 2D Charts and Plots</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Safe Haskell</th><td>None</td></tr><tr><th>Language</th><td>Haskell98</td></tr></table><p class="caption">Graphics.Rendering.Chart.Plot.Histogram</p></div><div id="table-of-contents"><p class="caption">Contents</p><ul><li><a href="#g:1">Histograms</a></li><li><a href="#g:2">Accessors</a></li></ul></div><div id="synopsis"><p id="control.syn" class="caption expander" onclick="toggleSection('syn')">Synopsis</p><ul id="section.syn" class="hide" onclick="toggleSection('syn')"><li class="src short"><span class="keyword">data</span> <a href="#t:PlotHist">PlotHist</a> x y = <a href="#v:PlotHist">PlotHist</a> {<ul class="subs"><li><a href="#v:_plot_hist_title">_plot_hist_title</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-String.html#t:String">String</a></li><li><a href="#v:_plot_hist_bins">_plot_hist_bins</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a></li><li><a href="#v:_plot_hist_values">_plot_hist_values</a> :: [x]</li><li><a href="#v:_plot_hist_no_zeros">_plot_hist_no_zeros</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Bool.html#t:Bool">Bool</a></li><li><a href="#v:_plot_hist_range">_plot_hist_range</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Maybe.html#t:Maybe">Maybe</a> (x, x)</li><li><a href="#v:_plot_hist_drop_lines">_plot_hist_drop_lines</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Bool.html#t:Bool">Bool</a></li><li><a href="#v:_plot_hist_fill_style">_plot_hist_fill_style</a> :: <a href="Graphics-Rendering-Chart-Backend-Types.html#t:FillStyle">FillStyle</a></li><li><a href="#v:_plot_hist_line_style">_plot_hist_line_style</a> :: <a href="Graphics-Rendering-Chart-Backend-Types.html#t:LineStyle">LineStyle</a></li><li><a href="#v:_plot_hist_norm_func">_plot_hist_norm_func</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:Double">Double</a> -&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a> -&gt; y</li></ul>}</li><li class="src short"><a href="#v:histToPlot">histToPlot</a> :: (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:RealFrac">RealFrac</a> x, <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:Num">Num</a> y, <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Ord.html#t:Ord">Ord</a> y) =&gt; <a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y -&gt; <a href="Graphics-Rendering-Chart-Plot-Types.html#t:Plot">Plot</a> x y</li><li class="src short"><a href="#v:defaultPlotHist">defaultPlotHist</a> :: <a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a></li><li class="src short"><a href="#v:defaultFloatPlotHist">defaultFloatPlotHist</a> :: <a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:Double">Double</a></li><li class="src short"><a href="#v:defaultNormedPlotHist">defaultNormedPlotHist</a> :: <a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:Double">Double</a></li><li class="src short"><a href="#v:plot_hist_title">plot_hist_title</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-String.html#t:String">String</a></li><li class="src short"><a href="#v:plot_hist_bins">plot_hist_bins</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a></li><li class="src short"><a href="#v:plot_hist_values">plot_hist_values</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) [x]</li><li class="src short"><a href="#v:plot_hist_no_zeros">plot_hist_no_zeros</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Bool.html#t:Bool">Bool</a></li><li class="src short"><a href="#v:plot_hist_range">plot_hist_range</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Maybe.html#t:Maybe">Maybe</a> (x, x))</li><li class="src short"><a href="#v:plot_hist_drop_lines">plot_hist_drop_lines</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Bool.html#t:Bool">Bool</a></li><li class="src short"><a href="#v:plot_hist_line_style">plot_hist_line_style</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) <a href="Graphics-Rendering-Chart-Backend-Types.html#t:LineStyle">LineStyle</a></li><li class="src short"><a href="#v:plot_hist_fill_style">plot_hist_fill_style</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) <a href="Graphics-Rendering-Chart-Backend-Types.html#t:FillStyle">FillStyle</a></li><li class="src short"><a href="#v:plot_hist_norm_func">plot_hist_norm_func</a> :: <span class="keyword">forall</span> x y y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens">Lens</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:Double">Double</a> -&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a> -&gt; y) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:Double">Double</a> -&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a> -&gt; y)</li></ul></div><div id="interface"><h1 id="g:1">Histograms</h1><div class="top"><p class="src"><span class="keyword">data</span> <a id="t:PlotHist" class="def">PlotHist</a> x y <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#PlotHist" class="link">Source</a> <a href="#t:PlotHist" class="selflink">#</a></p><div class="subs constructors"><p class="caption">Constructors</p><table><tr><td class="src"><a id="v:PlotHist" class="def">PlotHist</a></td><td class="doc empty">&nbsp;</td></tr><tr><td colspan="2"><div class="subs fields"><p class="caption">Fields</p><ul><li><dfn class="src"><a id="v:_plot_hist_title" class="def">_plot_hist_title</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-String.html#t:String">String</a></dfn><div class="doc"><p>Plot title</p></div></li><li><dfn class="src"><a id="v:_plot_hist_bins" class="def">_plot_hist_bins</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a></dfn><div class="doc"><p>Number of bins</p></div></li><li><dfn class="src"><a id="v:_plot_hist_values" class="def">_plot_hist_values</a> :: [x]</dfn><div class="doc"><p>Values to histogram</p></div></li><li><dfn class="src"><a id="v:_plot_hist_no_zeros" class="def">_plot_hist_no_zeros</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Bool.html#t:Bool">Bool</a></dfn><div class="doc"><p>Don't attempt to plot bins with zero counts. Useful when
 the y-axis is logarithmically scaled.</p></div></li><li><dfn class="src"><a id="v:_plot_hist_range" class="def">_plot_hist_range</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Maybe.html#t:Maybe">Maybe</a> (x, x)</dfn><div class="doc"><p>Override the range of the histogram. If <code>Nothing</code> the
 range of <code>_plot_hist_values</code> is used.</p><p>Note that any normalization is always computed over the full
 data set, including samples not falling in the histogram range.</p></div></li><li><dfn class="src"><a id="v:_plot_hist_drop_lines" class="def">_plot_hist_drop_lines</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Bool.html#t:Bool">Bool</a></dfn><div class="doc"><p>Plot vertical lines between bins</p></div></li><li><dfn class="src"><a id="v:_plot_hist_fill_style" class="def">_plot_hist_fill_style</a> :: <a href="Graphics-Rendering-Chart-Backend-Types.html#t:FillStyle">FillStyle</a></dfn><div class="doc"><p>Fill style of the bins</p></div></li><li><dfn class="src"><a id="v:_plot_hist_line_style" class="def">_plot_hist_line_style</a> :: <a href="Graphics-Rendering-Chart-Backend-Types.html#t:LineStyle">LineStyle</a></dfn><div class="doc"><p>Line style of the bin outlines</p></div></li><li><dfn class="src"><a id="v:_plot_hist_norm_func" class="def">_plot_hist_norm_func</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:Double">Double</a> -&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a> -&gt; y</dfn><div class="doc"><p>Normalization function</p></div></li></ul></div></td></tr></table></div><div class="subs instances"><p id="control.i:PlotHist" class="caption collapser" onclick="toggleSection('i:PlotHist')">Instances</p><div id="section.i:PlotHist" class="show"><table><tr><td class="src clearfix"><span class="inst-left"><span id="control.i:id:PlotHist:Default:1" class="instance expander" onclick="toggleSection('i:id:PlotHist:Default:1')"></span> <a href="file:///usr/share/doc/libghc-data-default-class-doc/html/Data-Default-Class.html#t:Default">Default</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a>)</span> <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#line-74" class="link">Source</a> <a href="#t:PlotHist" class="selflink">#</a></td><td class="doc empty">&nbsp;</td></tr><tr><td colspan="2"><div id="section.i:id:PlotHist:Default:1" class="inst-details hide"><div class="subs methods"><p class="caption">Methods</p><p class="src"><a href="#v:def">def</a> :: <a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a> <a href="#v:def" class="selflink">#</a></p></div></div></td></tr></table></div></div></div><div class="top"><p class="src"><a id="v:histToPlot" class="def">histToPlot</a> :: (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:RealFrac">RealFrac</a> x, <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:Num">Num</a> y, <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Ord.html#t:Ord">Ord</a> y) =&gt; <a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y -&gt; <a href="Graphics-Rendering-Chart-Plot-Types.html#t:Plot">Plot</a> x y <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#histToPlot" class="link">Source</a> <a href="#v:histToPlot" class="selflink">#</a></p><div class="doc"><p>Convert a <code>PlotHist</code> to a <code>Plot</code></p><p>N.B. In principle this should be Chart's <code>ToPlot</code> class but unfortunately
 this does not allow us to set bounds on the x and y axis types, hence
 the need for this function.</p></div></div><div class="top"><p class="src"><a id="v:defaultPlotHist" class="def">defaultPlotHist</a> :: <a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a> <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#defaultPlotHist" class="link">Source</a> <a href="#v:defaultPlotHist" class="selflink">#</a></p><div class="doc"><p>The default style is an unnormalized histogram of 20 bins.</p></div></div><div class="top"><p class="src"><a id="v:defaultFloatPlotHist" class="def">defaultFloatPlotHist</a> :: <a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:Double">Double</a> <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#defaultFloatPlotHist" class="link">Source</a> <a href="#v:defaultFloatPlotHist" class="selflink">#</a></p><div class="doc"><p><code>defaultPlotHist</code> but with real counts</p></div></div><div class="top"><p class="src"><a id="v:defaultNormedPlotHist" class="def">defaultNormedPlotHist</a> :: <a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:Double">Double</a> <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#defaultNormedPlotHist" class="link">Source</a> <a href="#v:defaultNormedPlotHist" class="selflink">#</a></p><div class="doc"><p><code>defaultPlotHist</code> but normalized such that the integral of the
 histogram is one.</p></div></div><h1 id="g:2">Accessors</h1><div class="top"><p class="src"><a id="v:plot_hist_title" class="def">plot_hist_title</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-String.html#t:String">String</a> <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#plot_hist_title" class="link">Source</a> <a href="#v:plot_hist_title" class="selflink">#</a></p></div><div class="top"><p class="src"><a id="v:plot_hist_bins" class="def">plot_hist_bins</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a> <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#plot_hist_bins" class="link">Source</a> <a href="#v:plot_hist_bins" class="selflink">#</a></p></div><div class="top"><p class="src"><a id="v:plot_hist_values" class="def">plot_hist_values</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) [x] <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#plot_hist_values" class="link">Source</a> <a href="#v:plot_hist_values" class="selflink">#</a></p></div><div class="top"><p class="src"><a id="v:plot_hist_no_zeros" class="def">plot_hist_no_zeros</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Bool.html#t:Bool">Bool</a> <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#plot_hist_no_zeros" class="link">Source</a> <a href="#v:plot_hist_no_zeros" class="selflink">#</a></p></div><div class="top"><p class="src"><a id="v:plot_hist_range" class="def">plot_hist_range</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Maybe.html#t:Maybe">Maybe</a> (x, x)) <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#plot_hist_range" class="link">Source</a> <a href="#v:plot_hist_range" class="selflink">#</a></p></div><div class="top"><p class="src"><a id="v:plot_hist_drop_lines" class="def">plot_hist_drop_lines</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Bool.html#t:Bool">Bool</a> <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#plot_hist_drop_lines" class="link">Source</a> <a href="#v:plot_hist_drop_lines" class="selflink">#</a></p></div><div class="top"><p class="src"><a id="v:plot_hist_line_style" class="def">plot_hist_line_style</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) <a href="Graphics-Rendering-Chart-Backend-Types.html#t:LineStyle">LineStyle</a> <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#plot_hist_line_style" class="link">Source</a> <a href="#v:plot_hist_line_style" class="selflink">#</a></p></div><div class="top"><p class="src"><a id="v:plot_hist_fill_style" class="def">plot_hist_fill_style</a> :: <span class="keyword">forall</span> x y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens-39-">Lens'</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) <a href="Graphics-Rendering-Chart-Backend-Types.html#t:FillStyle">FillStyle</a> <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#plot_hist_fill_style" class="link">Source</a> <a href="#v:plot_hist_fill_style" class="selflink">#</a></p></div><div class="top"><p class="src"><a id="v:plot_hist_norm_func" class="def">plot_hist_norm_func</a> :: <span class="keyword">forall</span> x y y. <a href="file:///usr/share/doc/libghc-lens-doc/html/Control-Lens-Type.html#t:Lens">Lens</a> (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) (<a href="Graphics-Rendering-Chart-Plot-Histogram.html#t:PlotHist">PlotHist</a> x y) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:Double">Double</a> -&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a> -&gt; y) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Prelude.html#t:Double">Double</a> -&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-Int.html#t:Int">Int</a> -&gt; y) <a href="src/Graphics-Rendering-Chart-Plot-Histogram.html#plot_hist_norm_func" class="link">Source</a> <a href="#v:plot_hist_norm_func" class="selflink">#</a></p></div></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>