-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | Easily render histograms with Chart
--   
@package chart-histogram
@version 0.4.3

module Numeric.Histogram
type Range a = (a, a)

-- | 'binBounds a b n' generates bounds for <tt>n</tt> bins spaced linearly
--   between <tt>a</tt> and <tt>b</tt>
binBounds :: RealFrac a => a -> a -> Int -> [Range a]

-- | 'histValues a b n vs' returns the bins for the histogram of
--   <tt>vs</tt> on the range from <tt>a</tt> to <tt>b</tt> with <tt>n</tt>
--   bins
histValues :: RealFrac a => a -> a -> Int -> [a] -> Vector (Range a, Int)

-- | 'histValues a b n vs' returns the bins for the weighted histogram of
--   <tt>vs</tt> on the range from <tt>a</tt> to <tt>b</tt> with <tt>n</tt>
--   bins
histWeightedValues :: RealFrac a => a -> a -> Int -> [(Double, a)] -> Vector (Range a, Double)

-- | 'histWithBins bins xs' is the histogram of weighted values <tt>xs</tt>
--   with <tt>bins</tt>
histWithBins :: (Num w, RealFrac a) => Vector (Range a) -> [(w, a)] -> Vector (Range a, w)

module Graphics.Rendering.Chart.Plot.Histogram
data PlotHist x y
PlotHist :: String -> Int -> Vector x -> Bool -> Maybe (x, x) -> Bool -> FillStyle -> LineStyle -> (Double -> Int -> y) -> PlotHist x y

-- | Plot title
_plot_hist_title :: PlotHist x y -> String

-- | Number of bins
_plot_hist_bins :: PlotHist x y -> Int

-- | Values to histogram
_plot_hist_values :: PlotHist x y -> Vector x

-- | Don't attempt to plot bins with zero counts. Useful when the y-axis is
--   logarithmically scaled.
_plot_hist_no_zeros :: PlotHist x y -> Bool

-- | Override the range of the histogram. If <tt>Nothing</tt> the range of
--   <tt>_plot_hist_values</tt> is used
_plot_hist_range :: PlotHist x y -> Maybe (x, x)

-- | Plot vertical lines between bins
_plot_hist_drop_lines :: PlotHist x y -> Bool

-- | Fill style of the bins
_plot_hist_fill_style :: PlotHist x y -> FillStyle

-- | Line style of the bin outlines
_plot_hist_line_style :: PlotHist x y -> LineStyle

-- | Normalization function
_plot_hist_norm_func :: PlotHist x y -> Double -> Int -> y

-- | Convert a <tt>PlotHist</tt> to a <tt>Plot</tt>
--   
--   N.B. In principle this should be Chart's <tt>ToPlot</tt> class but
--   unfortunately this does not allow us to set bounds on the x and y axis
--   types, hence the need for this function.
histToPlot :: (RealFrac x, Num y, Ord y) => PlotHist x y -> Plot x y

-- | The default style is an unnormalized histogram of 20 bins.
defaultPlotHist :: PlotHist x Int

-- | <tt>defaultPlotHist</tt> but with real counts
defaultFloatPlotHist :: PlotHist x Double

-- | <tt>defaultPlotHist</tt> but normalized such that the integral of the
--   histogram is one.
defaultNormedPlotHist :: PlotHist x Double
plot_hist_title :: Lens' (PlotHist x_a7Bw y_a7Bx) String
plot_hist_bins :: Lens' (PlotHist x_a7Bw y_a7Bx) Int
plot_hist_values :: Lens' (PlotHist x_a7Bw y_a7Bx) (Vector x_a7Bw)
plot_hist_no_zeros :: Lens' (PlotHist x_a7Bw y_a7Bx) Bool
plot_hist_range :: Lens' (PlotHist x_a7Bw y_a7Bx) (Maybe (x_a7Bw, x_a7Bw))
plot_hist_drop_lines :: Lens' (PlotHist x_a7Bw y_a7Bx) Bool
plot_hist_line_style :: Lens' (PlotHist x_a7Bw y_a7Bx) LineStyle
plot_hist_fill_style :: Lens' (PlotHist x_a7Bw y_a7Bx) FillStyle
plot_hist_norm_func :: Lens (PlotHist x_a7Bw y_a7Bx) (PlotHist x_a7Bw y_a9Q0) (Double -> Int -> y_a7Bx) (Double -> Int -> y_a9Q0)
instance Default (PlotHist x Int)