In [1]:

    

require 'mikon'


    

    
Out[1]:











    
Out[1]:





true

In [3]:

    

arr1 = ([0]*100).map{rand-0.5}.reduce([0.0]){|memo, val| memo.push(memo.last + val); memo}
arr2 = ([0]*100).map{rand-0.5}.reduce([0.0]){|memo, val| memo.push(memo.last + val); memo}
df = Mikon::DataFrame.new({a: arr1, b: arr2})


    

    
Out[3]:




a
b
0
0.0
0.0
1
-0.3743701519494641
0.08695749145080711
2
-0.7506250283310721
0.20895501522938087
3
-0.7305786327682252
0.4365217515672837
4
-0.34355128037293314
0.41172077368829163
5
-0.7782958290713428
0.624233177175703
6
-0.4255591823199092
0.9205294551215266
7
-0.13511770448479532
0.6374088589843501
8
-0.12622372149304972
0.8183366213796216
9
-0.5179825784212633
0.8813996471860409
10
-0.9524863208996285
1.24317735044235
11
-0.8195232507409935
1.4306392539428965
12
-0.5348494246465509
1.2490969685357804
13
-0.42140996491835603
1.2066484814546343
14
-0.7541424407728128
0.8133830872676959
15
-0.41334002536970016
0.5646023591277001
16
-0.712442372955194
0.4587654582991706
17
-1.1446228189994172
0.799565558439286
18
-1.037654685345953
1.1524036560935964
19
-1.4435527746994334
1.2316371707520215
20
-1.400503083063739
1.4618919034611357
21
-0.9820370589785515
1.2790020887802638
22
-0.9680262398026388
1.593027750210224
23
-0.512945670048299
1.8897029157850205
24
-0.8707175927371215
1.8683674116728959
25
-0.6079410553505818
2.30130114159547
26
-0.3807725332152546
1.907571159117499
27
-0.4553515659211377
2.2128964671613733
28
-0.8908570018427366
2.402528029862967
29
-1.3759154576945503
2.5711758591478295
30
-1.5581206248537924
2.2727791315919923
31
-1.2142367474514342
2.5120999920396505
32
-1.1604897193718289
2.4974766648227025
33
-1.6008453298487841
2.520334121956631
34
-1.1945279283691115
2.781010048602015
35
-1.5390975071307946
2.8819831761124783
36
-1.2123648930699522
3.3801607249116095
37
-0.8155501231923524
3.668438340178123
38
-0.8359829593222021
3.519879347449894
39
-0.9509691553047644
3.5486396225844947
40
-0.5543778417464614
3.057484391616062
41
-0.2221020183226542
3.238472540872777
42
-0.18017792991876513
3.30490860249322
43
-0.5834903276275388
3.3666226758446527
44
-1.052541754860456
3.7650501174953
45
-1.4455056090944431
4.227532919056422
46
-1.1893636169604012
4.567357916328972
47
-0.9194945295858115
4.45781976293442
48
-0.4565954565407264
4.9294281069741395
49
-0.9079061412198225
4.978676168435798
50
-0.4591177282331378
4.6885799693058745
...
...
...
100
0.903485449974876
3.076741620131531

In [9]:

    

df.plot


    

    
Out[9]:

In [5]:

    

df.plot(type: :box)


    

    
Out[5]:

In [11]:

    

df.plot(type: :scatter, x: :a, y: :b, fill_by: :b, color: :seq)


    

    
Out[11]:

In [12]:

    

plot = df[:a].plot
plot.yrange([0, 25])
plot


    

    
Out[12]:

In [13]:

    

df[:a].plot(type: :line)


    

    
Out[13]:

In [9]:

    

df = Mikon::DataFrame.new([{a: 1, b: 5}, {a: 2, b: 2}, {a: 3, b: 4}])


    

    
Out[9]:




a
b
0
1
5
1
2
2
2
3
4

In [12]:

    

df[:a].to_a


    

    
Out[12]:





[1, 2, 3]

In [5]:

    

df.sort_by(false){a}


    

    
Out[5]:




a
b
0
3
4
2
2
9
1
1
5

In [6]:

    

df[:a]


    

    
Out[6]:




a
0
3
1
1
2
2

In [7]:

    

df.map{a}.to_darr.sorted_indices


    

    
Out[7]:





[1, 2, 0]

In [8]:

    

df = Mikon::DataFrame.new([[0, 1, 2], [0, 1, 2]])


    

    
Out[8]:




0
1
0
0
0
1
1
1
2
2
2

In [9]:

    

df = Mikon::DataFrame.new([[0, 1, 2], [0, 1, 2]], labels: [:a, :b], index: [1,2,3])


    

    
Out[9]:




a
b
1
0
0
2
1
1
3
2
2

In [10]:

    

require 'nyaplot'


    

    
Out[10]:





false

In [11]:

    

plot = Nyaplot::Plot.new
plot.add_with_df(df, :scatter, :a, :b)
plot


    

    
Out[11]: