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Trace.hs
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Trace.hs
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{-# OPTIONS_GHC -fno-cse #-}
{-# OPTIONS_GHC -fno-full-laziness #-}
{-# LANGUAGE ExistentialQuantification #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE BangPatterns #-}
module Trace(
clearTrace
, traceNames
, CanBeTraced
, traceValues
, trace
, traceSample
, forceSignal
) where
import Common(HasDoubleRepresentation(..))
import System.IO.Unsafe
import qualified Data.Map as M
import Data.IORef
import Control.Applicative((<$>))
import Signal(Signal,mapS,fromListS,takeS)
import Fixed(Resolution(..))
import Statistics.Sample.KernelDensity
import qualified Data.Vector.Unboxed as U
import Viewer
import Plot
import Graphics.PDF
import Displayable
import Internal
import Control.DeepSeq
import Text.Printf
import qualified Graphics.PDF as PDF
import qualified Debug.Trace as T
debug a = T.trace (show a) a
data CanBeTraced = forall a. (HasDoubleRepresentation a,Resolution a) => CBT !a
instance HasDoubleRepresentation CanBeTraced where
toDouble (CBT a) = toDouble a
fromDouble = error "Can't create a CanBeTraced from a double"
instance Resolution CanBeTraced where
smallestValue (CBT a) = CBT (smallestValue a)
maxValue (CBT a) = CBT (maxValue a)
minValue (CBT a) = CBT (minValue a)
signedFormat (CBT a) = signedFormat a
bitWidth (CBT a) = bitWidth a
{-# NOINLINE globalTrace #-}
globalTrace :: IORef (M.Map String [CanBeTraced])
globalTrace = unsafePerformIO $ newIORef (M.empty)
clearTrace :: IO ()
clearTrace = writeIORef globalTrace M.empty
traceNames :: IO [String]
traceNames = M.keys <$> (readIORef globalTrace)
getTrace :: String -> IO (Maybe [CanBeTraced])
getTrace name = M.lookup name <$> (readIORef globalTrace)
removeZeroAndLog :: [Double] -> [Double] -> ([Double],[Double])
removeZeroAndLog a b = unzip . map (\(t,x) -> (t, log x)) . filter ((> 0) . snd ) . zip a $ b
traceValues :: String -> IO ()
traceValues s = do
let statStyle = LabelStyle 10 Centered PDF.S
r <- getTrace s
case r of
Nothing -> return ()
Just l -> do
let h = head l
sm = toDouble (smallestValue h)
mi = toDouble (minValue h)
ma = toDouble (maxValue h)
triplePartition ta tb !la !lb !lc [] = (la,lb,lc)
triplePartition ta tb !la !lb !lc (a:h) | ta a = triplePartition ta tb (a:la) lb lc h
| tb a = triplePartition ta tb la (a:lb) lc h
| otherwise = triplePartition ta tb la lb (a:lc) h
(negatives, nulls, positives) = triplePartition (<0) (==0) [] [] [] (map toDouble l)
positiveSat | null positives = 0 :: Double
| otherwise = 100*fromIntegral (length (filter (== ma) positives)) / fromIntegral (length positives)
negativeSat | null negatives = 0 :: Double
| otherwise = 100*fromIntegral (length (filter (== mi) negatives)) / fromIntegral (length negatives)
nullValues | null nulls = 0 :: Double
| otherwise = 100*fromIntegral (length nulls) / fromIntegral (length l)
drawHist bmi bma l h label theTitle = do
let targetLine wi hi (ptF,_) = do
withNewContext $ do
strokeColor $ Rgb 1.0 0.8 0.8
let start = (log bma) - (log bmi)
(xa :+ ya) = ptF ((log bmi),(-start))
(xb :+ yb) = ptF ((log bma),0)
stroke $ Line xa ya xb yb
tickv mav mbv =
map (\t -> (fromIntegral t)/(fromIntegral 10)*(mbv-mav) + mav) ([0..10] :: [Int])
tickh _ _ =
let mav = log bmi
mbv = log bma
in
map (\t -> (fromIntegral t)/(fromIntegral 10)*(mbv-mav) + mav) ([0..10] :: [Int])
plotStyle = (defaultPlotStyle { title = theTitle
, verticalLabel = Just "Log density"
, horizontalLabel = Just $ "Log amplitude (" ++ label ++ ")"
, horizontalTickValues = tickh
, verticalTickValues = tickv
, epilog = targetLine
, axis = False
, horizontalBounds = Just (log bmi, log bma)
})
if null l
then do
(\_ -> \_ -> return (R Nothing Nothing), \_ -> \_ -> \_ -> return ())
else do
let (t,p) = kde_ 32 (log bmi) (log bma) (U.fromList (map log l))
lt' = U.toList t
lp' = let templ = U.toList p
s = sum templ
in
map (/ s) templ
(lt,lp) = removeZeroAndLog lt' lp'
let r = (log bma - log bmi) / fromIntegral (length lp)
drawing $ discreteSignalsWithStyle (length lt) plotStyle [ AS (fromListS 0 lp)]
let (wi,he) = (\(x,y) -> (fromIntegral x, fromIntegral y)) $ viewerSize
if (signedFormat h)
then do
let posD = drawHist sm ma positives (he / 2 - 10) "pos" (Just "Log density of log amplitude")
negD = drawHist sm (-mi) (map negate negatives) (he / 2 - 10) "neg" Nothing
pict = Pair posD negD $ \pos -> \neg -> do
withNewContext $ do
applyMatrix $ translate (0 :+ (he/2 + 10))
pos
withNewContext $ do
neg
drawStringLabel statStyle ((printf "negative max: %2.3f %%" negativeSat) :: String)
(leftMargin defaultPlotStyle + (wi / 4.0)) (he / 2 - 10) 100 20
drawStringLabel statStyle ((printf "nulls: %2.3f %%" nullValues) :: String)
(leftMargin defaultPlotStyle + (2.0*wi/4.0)) (he/2 - 10) 100 20
drawStringLabel statStyle ((printf "positive max: %2.3f %%" positiveSat) :: String)
(leftMargin defaultPlotStyle + (3.0*wi/4.0)) (he/2 - 10) 100 20
display pict
else do
let dD = drawHist sm ma positives (he - 40) "unsigned" (Just "Log density of log amplitude")
pict = Mono dD $ \d -> do
withNewContext $ do
applyMatrix $ translate (0 :+ 40)
d
drawStringLabel statStyle ((printf "nulls: %2.3f %%" nullValues) :: String)
(leftMargin defaultPlotStyle + wi / 3.0) 10 100 20
drawStringLabel statStyle ((printf "positive max: %2.3f %%" positiveSat) :: String)
(leftMargin defaultPlotStyle + (2*wi/3.0)) 10 100 20
display pict
{-# NOINLINE traceSample #-}
traceSample :: (HasDoubleRepresentation a, Resolution a) => String -> a -> a
traceSample s a = unsafePerformIO $ do
nv <- M.insertWith' (++) s [CBT a] <$> (readIORef globalTrace)
writeIORef globalTrace nv
return a
{-# NOINLINE trace #-}
trace :: (HasDoubleRepresentation a, Resolution a)
=> String
-> Signal a
-> Signal a
trace s = mapS (traceSample s)
{-# NOINLINE myTake #-}
myTake :: NFData a => Int -> [a] -> [a]
myTake 0 l = []
myTake i (h:l) = h:myTake (i-1) l
myTake _ [] = []
{-# NOINLINE forceSignal #-}
forceSignal :: (NFData a, Show a)
=> Int
-> Signal a
-> IO ()
forceSignal i (Signal s) = do
let l = myTake i s
l `deepseq` return ()