1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
{-|
Module : Gargantext.Graph.Distances.Utils
Description :
Copyright : (c) CNRS, 2017-Present
License : AGPL + CECILL v3
Maintainer : team@gargantext.org
Stability : experimental
Portability : POSIX
These functions are used for Vector.Matrix only.
-}
{-# LANGUAGE BangPatterns #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE Strict #-}
module Gargantext.Viz.Graph.Utils
where
import Data.Matrix hiding (identity)
import Data.Map (Map)
import qualified Data.Map as M
import Data.Set (Set)
import qualified Data.Set as S
import Data.Vector (Vector)
import qualified Data.Vector as V
import qualified Data.List as L
import Gargantext.Prelude
------------------------------------------------------------------------
-- | Some utils to build the matrix from cooccurrence results
-- | For tests only, to be removed
-- m1 :: Matrix Double
-- m1 = fromList 300 300 [1..]
------------------------------------------------------------------------
------------------------------------------------------------------------
data Axis = Col | Row
------------------------------------------------------------------------
-- | Matrix functions
type AxisId = Int
-- Data.Vector.Additions
dropAt :: Int -> Vector a -> Vector a
dropAt n v = debut <> (V.tail fin)
where
debut = V.take n v
fin = V.drop n v
total :: Num a => Matrix a -> a
total m = V.sum $ V.map (\c -> V.sum (getCol c m)) (V.enumFromTo 1 (nOf Col m))
nOf :: Axis -> Matrix a -> Int
nOf Row = nrows
nOf Col = ncols
axis :: Axis -> AxisId -> Matrix a -> Vector a
axis Col = getCol
axis Row = getRow
toListsWithIndex :: Matrix a -> [((Int, Int), a)]
toListsWithIndex m = concat' $ zip [1..] $ map (\c -> zip [1..] c) $ toLists m
where
concat' :: [(Int, [(Int, a)])] -> [((Int, Int), a)]
concat' xs = L.concat $ map (\(x, ys) -> map (\(y, a) -> ((x,y), a)) ys ) xs