TALibEx
Mix.install([
{:tesla, "~> 1.4"},
{:talib_ex_nif, "~> 0.1.0"},
{:vega_lite, "~> 0.1.6"},
{:kino, "~> 0.6.2"},
{:kino_vega_lite, "~> 0.1.3"},
{:nimble_csv, "~> 1.2"}
])
:ok
Section
alias NimbleCSV.RFC4180, as: CSV
NimbleCSV.RFC4180
timestamp = fn %Date{day: day, month: month, year: year} ->
{{year, month, day}, {0, 0, 0}}
|> NaiveDateTime.from_erl!()
|> DateTime.from_naive!("Etc/UTC")
|> DateTime.to_unix()
end
#Function<44.65746770/1 in :erl_eval.expr/5>
# load csv data for APPL
symbol = "AAPL"
period1 = ~D[2022-01-01]
period2 = Date.utc_today()
interval = "1d"
events = "history"
include_adjusted_close = true
{:ok, %{body: csv}} =
Tesla.get(
"https://query1.finance.yahoo.com/v7/finance/download/#{symbol}",
query: [
period1: timestamp.(period1),
period2: timestamp.(period2),
interval: interval,
events: events,
includeAdjustedClose: include_adjusted_close
]
)
19:26:21.825 [warn] Description: 'Authenticity is not established by certificate path validation'
Reason: 'Option {verify, verify_peer} and cacertfile/cacerts is missing'
{:ok,
%Tesla.Env{
__client__: %Tesla.Client{adapter: nil, fun: nil, post: [], pre: []},
__module__: Tesla,
body: "Date,Open,High,Low,Close,Adj Close,Volume\n2022-01-03,177.830002,182.880005,177.710007,182.009995,181.259918,104487900\n2022-01-04,182.630005,182.940002,179.119995,179.699997,178.959457,99310400\n2022-01-05,179.610001,180.169998,174.639999,174.919998,174.199158,94537600\n2022-01-06,172.699997,175.300003,171.639999,172.000000,171.291183,96904000\n2022-01-07,172.889999,174.139999,171.029999,172.169998,171.460495,86709100\n2022-01-10,169.080002,172.500000,168.169998,172.190002,171.480408,106765600\n2022-01-11,172.320007,175.179993,170.820007,175.080002,174.358490,76138300\n2022-01-12,176.119995,177.179993,174.820007,175.529999,174.806641,74805200\n2022-01-13,175.779999,176.619995,171.789993,172.190002,171.480408,84505800\n2022-01-14,171.339996,173.779999,171.089996,173.070007,172.356796,80440800\n2022-01-18,171.509995,172.539993,169.410004,169.800003,169.100250,90956700\n2022-01-19,170.000000,171.080002,165.940002,166.229996,165.544952,94815000\n2022-01-20,166.979996,169.679993,164.179993,164.509995,163.832062,91420500\n2022-01-21,164.419998,166.330002,162.300003,162.410004,161.740707,122848900\n2022-01-24,160.020004,162.300003,154.699997,161.619995,160.953949,162294600\n2022-01-25,158.979996,162.759995,157.020004,159.779999,159.121536,115798400\n2022-01-26,163.500000,164.389999,157.820007,159.690002,159.031921,108275300\n2022-01-27,162.449997,163.839996,158.279999,159.220001,158.563858,121954600\n2022-01-28,165.710007,170.350006,162.800003,170.330002,169.628067,179935700\n2022-01-31,170.160004,175.000000,169.509995,174.779999,174.059723,115541600\n2022-02-01,174.009995,174.839996,172.309998,174.610001,173.890442,86213900\n2022-02-02,174.750000,175.880005,173.330002,175.839996,175.115356,84914300\n2022-02-03,174.479996,176.240005,172.119995,172.899994,172.187469,89418100\n2022-02-04,171.679993,174.100006,170.679993,172.389999,171.898315,82465400\n2022-02-07,172.860001,173.949997,170.949997,171.660004,171.170395,77251200\n2022-02-08,171.729996,175.350006,171.429993,174.830002,174.331345,74829200\n2022-02-09,176.050003,176.649994,174.899994,176.279999,175.777222,71285000\n2022-02-10,174.139999,175.479996,171.550003,172.119995,171.629074,90865900\n2022-02-11,172.330002,173.080002,168.039993,168.639999,168.159012,98670700\n2022-02-14,167.369995,169.580002,166.559998,168.880005,168.398315,86185500\n2022-02-15,170.970001,172.949997,170.250000,172.789993,172.297165,62527400\n2022-02-16,171.850006,173.339996,170.050003,172.550003,172.057861,61177400\n2022-02-17,171.029999,171.910004,168.470001,168.880005,168.398315,69589300\n2022-02-18,169.820007,170.539993,166.190002,167.300003,166.822830,82772700\n2022-02-22,164.979996,166.690002,162.149994,164.320007,163.851334,91162800\n2022-02-23,165.539993,166.149994,159.750000,160.070007,159.613464,90009200\n2022-02-24,152.580002,162.850006,152.000000,162.740005,162.275848,141147500\n2022-02-25,163.839996,165.119995,160.869995,164.850006,164.379822,91974200\n2022-02-28,163.059998,165.419998,162.429993,165.119995,164.649048,95056600\n2022-03-01,164.699997,166.600006,161.970001,163.199997,162.734528,83474400\n2022-03-02,164.389999,167.360001,162.949997,166.559998,166.084946,79724800\n2022-03-03,168.470001,168.910004,165.550003,166.229996,165.755875,76678400\n2022-03-04,164.490005,165.550003,162.100006,163.169998,162.704605,83737200\n2022-03-07,163.360001,165.020004,159.039993,159.300003,158.845657,96418800\n2022-03-08,158.820007,162.880005,155.800003,157.440002,156.990952,131148300\n2022-03-09,161.479996,163.410004,159.410004,162.949997,162.485245,91454900\n2022-03-10,160.199997,160.389999,155.979996,158.520004,158.067886,105342000\n2022-03-11,158.929993,159.279999,154.500000,154.729996,154.288681,96970100\n2022-03-14,151.449997,154.119995,150.100006,150.619995,150.190399,108732100\n2022-03-15,150.899994,155.570007,150.380005,155.089996,154.647644,92964300\n2022-03-16,157.050003,160.000000,154.460007,159.589996,159.134827,102300200\n2022-03-17,158.610001,161.000000,157.630005,160.619995,160.161880,75615400\n2022-03-18,160.509995,164.479996,159.759995,163.979996,163.512299,123511700\n2022-03-21,163.509995,166.350006,163.009995,165.380005,164.90831" <> ...,
headers: [
{"cache-control", "private, max-age=10, stale-while-revalidate=20"},
{"connection", "keep-alive"},
{"date", "Tue, 20 Sep 2022 16:26:24 GMT"},
{"age", "0"},
{"server", "ATS"},
{"vary", "Origin"},
{"content-length", "13507"},
{"content-type", "text/csv;charset=utf-8"},
{"content-disposition", "attachment; filename=AAPL.csv"},
{"y-rid", "b3jj6l5hijqdg"},
{"x-yahoo-request-id", "b3jj6l5hijqdg"},
{"x-request-id", "17128235-15dc-475a-95a3-f358e49aa210"},
{"x-envoy-upstream-service-time", "36"},
{"x-envoy-decorator-operation",
"finance-chart-api--mtls-production-ir2.finance-k8s.svc.yahoo.local:4080/*"},
{"strict-transport-security", "max-age=15552000"},
{"referrer-policy", "no-referrer-when-downgrade"},
{"x-frame-options", "SAMEORIGIN"},
{"expect-ct",
"max-age=31536000, report-uri=\"http://csp.yahoo.com/beacon/csp?src=yahoocom-expect-ct-report-only\""},
{"x-xss-protection", "1; mode=block"},
{"x-content-type-options", "nosniff"}
],
method: :get,
opts: [],
query: [
period1: 1640995200,
period2: 1663632000,
interval: "1d",
events: "history",
includeAdjustedClose: true
],
status: 200,
url: "https://query1.finance.yahoo.com/v7/finance/download/AAPL"
}}
# convert csv to data
[date, open, high, low, close, _adjusted_close, volume] =
csv
|> CSV.parse_string()
|> Enum.zip()
|> Enum.map(&Tuple.to_list/1)
open = Enum.map(open, &String.to_float/1)
high = Enum.map(high, &String.to_float/1)
low = Enum.map(low, &String.to_float/1)
close = Enum.map(close, &String.to_float/1)
volume = Enum.map(volume, &String.to_integer/1)
[104487900, 99310400, 94537600, 96904000, 86709100, 106765600, 76138300, 74805200, 84505800,
80440800, 90956700, 94815000, 91420500, 122848900, 162294600, 115798400, 108275300, 121954600,
179935700, 115541600, 86213900, 84914300, 89418100, 82465400, 77251200, 74829200, 71285000,
90865900, 98670700, 86185500, 62527400, 61177400, 69589300, 82772700, 91162800, 90009200,
141147500, 91974200, 95056600, 83474400, 79724800, 76678400, 83737200, 96418800, 131148300,
91454900, 105342000, 96970100, 108732100, 92964300, ...]
{:ok, sma5} = TalibEx.sma(values: close, time_period: 5)
{:ok, sma20} = TalibEx.sma(values: close, time_period: 20)
{:ok, sma50} = TalibEx.sma(values: close, time_period: 50)
{:ok,
[:nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan,
:nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan,
:nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan,
...]}
{:ok, roc} = TalibEx.roc(values: close, time_period: 5)
{:ok,
[:nan, :nan, :nan, :nan, :nan, -5.395304252384603, -2.5709488464821684, 0.34873142406508517,
0.11046627906976525, 0.5227443866265391, -1.3880010292351308, -5.054835446026562,
-6.278131409321097, -5.679771117024557, -6.615826854389628, -5.901062322124928,
-3.9343043718776283, -3.2156064438516374, 4.876545659096232, 8.142559341126088, 9.281513388919226,
10.113340721230646, 8.591880991132506, 1.2094152385438095, -1.7850984196424058,
0.1259956467212886, 0.2502291913154986, -0.45112725683496, -2.1753002040448943,
-1.6194797478858103, -1.1668529295103425, -2.1159496375989906, -1.8824018673716414,
-0.7945896631557647, -2.7001408485273326, -7.3615293218977085, -5.685307348270518,
-2.3863091429917938, -1.3030531744820162, -0.6816029407788471, 4.054470366831442,
2.1445194130355283, -1.0191130960589767, -3.5247045640959374, -3.529408765859232,
-2.167387754171324, -4.63814725712921, -5.17252074734964, ...]}
{:ok, macd, macd_signal, macd_hist} =
TalibEx.macd(values: close, slow_period: 26, fast_period: 12, signal_period: 9)
{:ok,
[:nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan,
:nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan,
:nan, -0.7444370137388319, -1.1384069756123552, -1.7731309403210957, -2.037223882012313,
-2.0525989117474523, -2.019715850579871, -2.124098297236827, -1.9136389002046599,
-1.7532661543794177, -1.8517401551786747, -2.216507248053574, -2.6254102382198994,
-2.476312863128328, -2.684668345741727, -3.1196521301739892, ...],
[:nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan,
:nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan,
:nan, -0.8709551981421334, -0.9244455536361778, -1.0941826309731613, -1.2827908811809916,
-1.4367524872942838, -1.5533451599514012, -1.6674957874084864, -1.716724409967721,
-1.7240327588500604, -1.7495742381157833, -1.8429608401033415, -1.9994507197266531,
-2.094823148406988, -2.212792187873936, ...],
[:nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan,
:nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan,
:nan, 0.12651818440330154, -0.2139614219761774, -0.6789483093479345, -0.7544330008313214,
-0.6158464244531685, -0.4663706906284699, -0.45660250982834083, -0.19691449023693886,
-0.02923339552935733, -0.10216591706289146, -0.37354640795023264, -0.6259595184932463,
-0.3814897147213401, ...]}
{:ok, cdl_engulfing} = TalibEx.cdl_engulfing(open: open, high: high, low: low, close: close)
{:ok,
[:nan, :nan, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -100, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ...]}
{:ok, rsi} = TalibEx.rsi(values: close, time_period: 14)
{:ok,
[:nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan, :nan,
15.097578884606977, 14.13846092715946, 14.091307653552002, 13.831862355645605, 41.330315286018916,
48.42928050651345, 48.189396354367545, 50.11474743559168, 45.73941689628039, 45.005388580559426,
43.918931423444334, 49.607909390215134, 52.00616897376121, 45.33932635014458, 40.6453016399304,
41.09822707795724, 48.052818332969046, 47.68069387550926, 42.287580471975375, 40.18046453652654,
36.487598120413615, 31.974176136923404, 37.22752905742443, 41.09871427560848, 41.59504653265974,
39.073486672730446, 45.32053981064335, 44.83431040750177, 40.49575725613307, 35.78002621775475,
33.74603217749457, 43.917013651062334, 38.76447355816572, 34.98295024826902, ...]}
data =
[
date: date,
open: open,
high: high,
low: low,
close: close,
volume: volume,
roc: roc,
sma5: sma5,
sma20: sma20,
sma50: sma50,
roc: roc,
macd: macd,
macd_signal: macd_signal,
macd_hist: macd_hist,
rsi: rsi,
cdl_engulfing: cdl_engulfing
]
|> then(fn list ->
keys = Keyword.keys(list)
filter_and_build = fn values ->
values = Tuple.to_list(values)
if :nan in values do
[]
else
keys
|> Enum.zip(values)
|> Map.new()
|> case do
%{cdl_engulfing: 0} = data -> data
%{cdl_engulfing: 100} = data -> %{data | cdl_engulfing: 80}
%{cdl_engulfing: -100} = data -> %{data | cdl_engulfing: 60}
end
|> List.wrap()
end
end
list
|> Keyword.values()
|> Enum.zip()
|> Enum.flat_map(filter_and_build)
end)
[
%{
cdl_engulfing: 0,
close: 155.089996,
date: "2022-03-15",
high: 155.570007,
low: 150.380005,
macd: -3.849442455126706,
macd_hist: -0.946846790785306,
macd_signal: -2.9025956643414,
open: 150.899994,
roc: -1.4926359058354044,
rsi: 38.742982502781764,
sma20: 162.82150030000003,
sma5: 156.38199760000003,
sma50: 167.63619992,
volume: 92964300
},
%{
cdl_engulfing: 0,
close: 159.589996,
date: "2022-03-16",
high: 160.0,
low: 154.460007,
macd: -3.5223457177184514,
macd_hist: -0.49580004270164135,
macd_signal: -3.02654567501681,
open: 157.050003,
roc: -2.061982854777211,
rsi: 45.109010512115404,
sma20: 162.16150045000003,
sma5: 155.70999740000005,
sma50: 167.18779994,
volume: 102300200
},
%{
cdl_engulfing: 0,
close: 160.619995,
date: "2022-03-17",
high: 161.0,
low: 157.630005,
macd: -3.1437674907721487,
macd_hist: -0.09377745260427073,
macd_signal: -3.049990038167878,
open: 158.610001,
roc: 1.324748263316966,
rsi: 46.480011233974025,
sma20: 161.56500005000004,
sma5: 156.12999560000006,
sma50: 166.8061999,
volume: 75615400
},
%{
cdl_engulfing: 0,
close: 163.979996,
date: "2022-03-18",
high: 164.479996,
low: 159.759995,
macd: -2.543299939851039,
macd_hist: 0.405352078653471,
macd_signal: -2.94865201850451,
open: 160.509995,
roc: 5.978155651215822,
rsi: 50.7973159777592,
sma20: 161.31999960000005,
sma5: 157.97999560000005,
sma50: 166.58739985999998,
volume: 123511700
},
%{
cdl_engulfing: 0,
close: 165.380005,
date: "2022-03-21",
high: 166.350006,
low: 163.009995,
macd: -1.9321830502136663,
macd_hist: 0.8131751746326747,
macd_signal: -2.745358224846341,
open: 163.509995,
roc: 9.799502383465097,
rsi: 52.51609186336067,
sma20: 161.22399970000006,
sma5: 160.93199760000005,
sma50: 166.45499995999998,
volume: 95811400
},
%{
cdl_engulfing: 0,
close: 168.820007,
date: "2022-03-22",
high: 169.419998,
low: 164.910004,
macd: -1.1569524722902145,
macd_hist: 1.2707246020449015,
macd_signal: -2.427677074335116,
open: 165.509995,
roc: 8.852931429568155,
rsi: 56.533938018506404,
sma20: 161.44899970000006,
sma5: 163.67799980000004,
sma50: 166.38800013999997,
volume: 81532000
},
%{
cdl_engulfing: 0,
close: 170.210007,
date: "2022-03-23",
high: 172.639999,
low: 167.649994,
macd: -0.4255102534352204,
macd_hist: 1.6017334567199164,
macd_signal: -2.027243710155137,
open: 167.990005,
roc: 6.654559349697564,
rsi: 58.07753680331981,
sma20: 161.95599970000006,
sma5: 165.80200200000004,
sma50: 166.34840023999996,
volume: 98062700
},
%{
cdl_engulfing: 0,
close: 174.070007,
date: "2022-03-24",
high: 174.139999,
low: 170.210007,
macd: 0.4603263596669649,
macd_hist: 1.9900560558576814,
macd_signal: -1.5297296961907165,
open: 171.059998,
roc: 8.373809250834574,
rsi: 62.102415959430004,
sma20: 162.52249980000005,
sma5: 168.49200440000004,
sma50: 166.32820033999997,
volume: 90131400
},
%{
cdl_engulfing: 0,
close: 174.720001,
date: "2022-03-25",
high: 175.279999,
low: 172.75,
macd: 1.2009633829274833,
macd_hist: 2.18455446329456,
macd_signal: -0.9835910803670765,
open: 173.880005,
roc: 6.549582425895406,
rsi: 62.75094296123116,
sma20: 163.01599955000006,
sma5: 170.64000540000004,
sma50: 166.31200037999994,
volume: 80546200
},
%{
cdl_engulfing: 0,
close: 175.600006,
date: "2022-03-28",
high: 175.729996,
low: 172.0,
macd: 1.8377481916594718,
macd_hist: 2.2570714176212388,
macd_signal: -0.41932322596176685,
open: 172.169998,
roc: 6.179707758504427,
rsi: 63.65769691818307,
sma20: 163.54000010000007,
sma5: 172.68400560000003,
sma50: 166.38020045999994,
volume: 90371900
},
%{
cdl_engulfing: 0,
close: 178.960007,
date: "2022-03-29",
high: 179.009995,
low: 176.339996,
macd: 2.583744937057361,
macd_hist: 2.402454530415302,
macd_signal: 0.18129040664205875,
open: 176.690002,
roc: 6.006397097235028,
rsi: 66.96440086886315,
sma20: 164.32800060000005,
sma5: 174.71200560000005,
sma50: 166.49800045999993,
volume: 100589400
},
%{
cdl_engulfing: 0,
close: 177.770004,
date: "2022-03-30",
high: 179.610001,
low: 176.699997,
macd: 3.043841920636254,
macd_hist: 2.290041211195356,
macd_signal: 0.7538007094408978,
open: 178.550003,
roc: 4.441570230356673,
rsi: 64.71842972244696,
sma20: 164.88850090000005,
sma5: 176.22400500000003,
sma50: 166.65740047999992,
volume: 92633200
},
%{
cdl_engulfing: 0,
close: 174.610001,
date: "2022-03-31",
high: 178.029999,
low: 174.399994,
macd: 3.1175490967093253,
macd_hist: 1.890998709814742,
macd_signal: 1.2265503868945833,
open: 177.839996,
roc: 0.31021656706200496,
rsi: 59.05426855928805,
sma20: 165.30750115000006,
sma5: 176.33200380000002,
sma50: 166.8250005799999,
volume: 103049300
},
%{
cdl_engulfing: 0,
close: 174.309998,
date: "2022-04-01",
high: 174.880005,
low: 171.940002,
macd: 3.11583739594937,
macd_hist: 1.5114296072438296,
macd_signal: 1.6044077887055406,
open: 174.029999,
roc: -0.23466288785105593,
rsi: 58.53053200307679,
sma20: 165.86450115000008,
sma5: 176.25000320000004,
sma50: 167.0210006399999,
volume: 78751300
},
%{
cdl_engulfing: 0,
close: 178.440002,
date: "2022-04-04",
high: 178.490005,
low: 174.440002,
macd: 3.4084472099300456,
macd_hist: 1.443231536979604,
macd_signal: 1.9652156729504415,
open: 174.570007,
roc: 1.617309739727446,
rsi: 63.34947070926451,
sma20: 166.82150110000006,
sma5: 176.8180024,
sma50: 167.3416005999999,
volume: 76468400
},
%{
cdl_engulfing: 0,
close: 175.059998,
date: "2022-04-05",
high: 178.300003,
low: 174.419998,
macd: 3.3292272612262366,
macd_hist: 1.0912092706206362,
macd_signal: 2.2380179906056004,
open: 177.5,
roc: -2.1792628785491597,
rsi: 57.464135040092835,
sma20: 167.70250090000008,
sma5: 176.03800060000003,
sma50: 167.61040065999995,
volume: 73401800
},
%{
cdl_engulfing: 0,
close: 171.830002,
date: "2022-04-06",
high: 173.630005,
low: 170.130005,
macd: 2.9715569394642785,
macd_hist: 0.5868311590869424,
macd_signal: 2.384725780377336,
open: 172.360001,
roc: -3.3413972359476296,
rsi: 52.44950292772784,
sma20: 168.1465011500001,
sma5: 174.85000020000004,
sma50: 167.85140071999996,
volume: 89058800
},
%{
cdl_engulfing: 0,
close: 172.139999,
date: "2022-04-07",
high: 173.360001,
low: 169.850006,
macd: 2.682196112562849,
macd_hist: 0.23797626574841058,
macd_signal: 2.4442198468144385,
open: 171.160004,
roc: -1.4145822036848998,
rsi: 52.87455084820092,
sma20: 168.82750090000008,
sma5: 174.35599980000003,
sma50: 168.10040065999993,
volume: 77594700
},
%{
cdl_engulfing: 0,
close: 170.089996,
date: "2022-04-08",
high: 171.779999,
low: 169.199997,
macd: 2.2613895716849584,
macd_hist: -0.1462642201035842,
macd_signal: 2.4076537917885426,
open: 171.779999,
roc: -2.420975301715045,
rsi: 49.710025974772066,
sma20: 169.5955009000001,
sma5: 173.51199940000004,
sma50: 168.31780055999997,
volume: 76575500
},
%{
cdl_engulfing: 0,
close: 165.75,
date: "2022-04-11",
high: 169.029999,
low: 165.5,
macd: 1.5597165089266696,
macd_hist: -0.6783498262894985,
macd_signal: 2.238066335216168,
open: 168.710007,
roc: -7.1116352038597235,
rsi: 43.74140419752012,
sma20: 170.3520011500001,
sma5: 170.97399900000005,
sma50: 168.22620051999994,
volume: 72246700
},
%{
cdl_engulfing: 0,
close: 167.660004,
date: "2022-04-12",
high: 169.869995,
low: 166.639999,
macd: 1.1445631006809833,
macd_hist: -0.8748025876281478,
macd_signal: 2.019365688309131,
open: 168.020004,
roc: -4.227118750452641,
rsi: 46.77049391265767,
sma20: 170.98050155000007,
sma5: 169.49400020000004,
sma50: 168.08380061999992,
volume: 79265200
},
%{
cdl_engulfing: 80,
close: 170.399994,
date: "2022-04-13",
high: 171.039993,
low: 166.770004,
macd: 1.024831705608932,
macd_hist: -0.7956271861601594,
macd_signal: 1.8204588917690914,
open: 167.389999,
roc: -0.8322225358526225,
rsi: 50.85814813274311,
sma20: 171.52100145000006,
sma5: 169.20799860000005,
sma50: 167.99960047999994,
volume: 70618900
},
%{
cdl_engulfing: 60,
close: 165.289993,
date: "2022-04-14",
high: 171.270004,
low: 165.039993,
macd: 0.5117106558446949,
macd_hist: -1.0469985887395172,
macd_signal: 1.5587092445842121,
open: 170.619995,
roc: -3.979322667476015,
rsi: 44.06227419530482,
sma20: 171.75450135000006,
sma5: 167.83799740000003,
sma50: 167.78860041999994,
volume: 75329400
},
%{
cdl_engulfing: 0,
close: 165.070007,
date: "2022-04-18",
high: 166.600006,
low: 163.570007,
macd: 0.08631253815653395,
macd_hist: -1.1779173651421426,
macd_signal: 1.2642299032986766,
open: 163.919998,
roc: -2.951372284117171,
rsi: 43.79098765111992,
sma20: 171.80900190000006,
sma5: 166.83399960000003,
sma50: 167.63200067999995,
volume: 69023900
},
%{
cdl_engulfing: 0,
close: 167.399994,
date: "2022-04-19",
high: 167.820007,
low: 163.910004,
macd: -0.06209229522488613,
macd_hist: -1.0610577588188501,
macd_signal: 0.998965463593964,
open: 165.020004,
roc: 0.9954714932126629,
rsi: 47.47935789650038,
sma20: 171.91000135000004,
sma5: 167.16399840000003,
sma50: 167.5322005799999,
volume: 67723800
},
%{
cdl_engulfing: 0,
close: 167.229996,
date: "2022-04-20",
high: 168.880005,
low: 166.100006,
macd: -0.19121737784305992,
macd_hist: -0.9521462731496191,
macd_signal: 0.7609288953065592,
open: 168.759995,
roc: -0.25647619571808056,
rsi: 47.235815279459665,
sma20: 171.83050080000004,
sma5: 167.07799680000005,
sma50: 167.44360041999994,
volume: 67929800
},
%{
cdl_engulfing: 0,
close: 166.419998,
date: "2022-04-21",
high: 171.529999,
low: 165.910004,
macd: -0.35481986276792554,
macd_hist: -0.8925990064595878,
macd_signal: 0.5377791436916622,
open: 168.910004,
roc: -2.3356784859980717,
rsi: 46.02442707522933,
sma20: 171.64100035000004,
sma5: 166.28199760000004,
sma50: 167.27540033999992,
volume: 87227800
},
%{
cdl_engulfing: 0,
close: 161.789993,
date: "2022-04-22",
high: 167.869995,
low: 161.5,
macd: -0.8483000448285338,
macd_hist: -1.108863350816157,
macd_signal: 0.26056330598762306,
open: 166.460007,
roc: -2.117490560968205,
rsi: 39.74928650135733,
sma20: 171.02699965000005,
sma5: 165.58199760000005,
sma50: 166.9856002199999,
volume: 84882400
},
%{
cdl_engulfing: 0,
close: 162.880005,
date: "2022-04-25",
high: 163.169998,
low: 158.460007,
macd: -1.1383100559035881,
macd_hist: -1.1190986895129689,
macd_signal: -0.01921136639061921,
open: 161.119995,
roc: -1.3267110360030365,
rsi: 41.76242141206,
sma20: 170.43499985000003,
sma5: 165.14399720000003,
sma50: 166.80080041999992,
volume: 96046400
},
%{
cdl_engulfing: 0,
close: 156.800003,
date: "2022-04-26",
high: 162.339996,
low: 156.720001,
macd: -1.8375680867355868,
macd_hist: -1.454685376275974,
macd_signal: -0.38288271045961275,
open: 162.25,
roc: -6.3321334408172,
rsi: 34.781454871764936,
sma20: 169.49499970000002,
sma5: 163.02399900000006,
sma50: 166.5640004999999,
volume: 95623200
},
%{
cdl_engulfing: 0,
close: 156.570007,
date: "2022-04-27",
high: 159.789993,
low: 155.380005,
macd: -2.3828261326952997,
macd_hist: -1.5999547377885497,
macd_signal: -0.7828713949067502,
open: 155.910004,
roc: -6.374447919020454,
rsi: 34.54620388104945,
sma20: 168.3754997,
sma5: 160.89200120000004,
sma50: 166.3178005399999,
volume: 88063200
},
%{
cdl_engulfing: 0,
close: 163.639999,
date: "2022-04-28",
high: 164.520004,
low: 158.929993,
macd: -2.2188799278751787,
macd_hist: -1.1488068263747429,
macd_signal: -1.0700731015004359,
open: 159.25,
roc: -1.670471718188582,
rsi: 46.52059876299832,
sma20: 167.66899945,
sma5: 160.33600140000004,
sma50: 166.13480065999988,
volume: 130216800
},
%{
cdl_engulfing: 0,
close: 157.649994,
date: "2022-04-29",
high: 166.199997,
low: 157.25,
macd: -2.5429808223565544,
macd_hist: -1.178326176684895,
macd_signal: -1.3646546456716595,
open: 161.839996,
roc: -2.5588721052729246,
rsi: 39.86609887679818,
sma20: 166.8209991,
sma5: 159.50800160000006,
sma50: 165.83680047999988,
volume: 131747600
},
%{
cdl_engulfing: 0,
close: 157.960007,
date: "2022-05-02",
high: 158.229996,
low: 153.270004,
macd: -2.743195804387767,
macd_hist: -1.102832926972886,
macd_signal: -1.640362877414881,
open: 156.710007,
roc: -3.0206273630701497,
rsi: 40.34173860585698,
sma20: 166.00349955,
sma5: 158.52400200000005,
sma50: 165.61840051999988,
volume: 123055300
},
%{
cdl_engulfing: 0,
close: 159.479996,
date: "2022-05-03",
high: 160.710007,
low: 156.320007,
macd: -2.747545219889304,
macd_hist: -0.8857458739795381,
macd_signal: -1.8617993459097657,
open: 158.149994,
roc: 1.7091791764825448,
rsi: 42.73342998583259,
sma20: 165.05549925,
sma5: 159.06000060000005,
sma50: 165.4620003799999,
volume: 88966500
},
%{
cdl_engulfing: 0,
close: 166.020004,
date: "2022-05-04",
high: 166.479996,
low: 159.259995,
macd: -2.1979317850840516,
macd_hist: -0.26890595133942874,
macd_signal: -1.9290258337446229,
open: 159.669998,
roc: 6.035636825385082,
rsi: 51.70483943099953,
sma20: 164.60349954999998,
sma5: 160.95000000000005,
sma50: 165.49600031999987,
...
},
%{
cdl_engulfing: 0,
close: 156.770004,
date: "2022-05-05",
high: 164.080002,
low: 154.949997,
macd: -2.4801670508624625,
macd_hist: -0.44091297369427185,
macd_signal: -2.0392540771681906,
open: 163.850006,
roc: -4.198237009277905,
rsi: 41.74389324743946,
sma20: 163.85049965,
sma5: 159.57600100000005,
...
},
%{
cdl_engulfing: 0,
close: 157.279999,
date: "2022-05-06",
high: 159.440002,
low: 154.179993,
macd: -2.632344173043691,
macd_hist: -0.47447207670040026,
macd_signal: -2.157872096343291,
open: 156.009995,
roc: -0.23469395120940817,
rsi: 42.402733525004095,
sma20: 163.10749964999997,
...
},
%{
cdl_engulfing: 0,
close: 152.059998,
date: "2022-05-09",
high: 155.830002,
low: 151.490005,
macd: -3.137983375059804,
macd_hist: -0.7840890229732103,
macd_signal: -2.3538943520865936,
open: 154.929993,
roc: -3.7351283480254516,
rsi: 37.70270450323948,
...
},
%{
cdl_engulfing: 0,
close: 154.509995,
date: "2022-05-10",
high: 156.740005,
low: 152.929993,
macd: -3.3029375945874335,
macd_hist: -0.759234594000672,
macd_signal: -2.5437030005867616,
open: 155.520004,
roc: -3.1163789344464177,
...
},
%{
cdl_engulfing: 0,
close: 146.5,
date: "2022-05-11",
high: 155.449997,
low: 145.809998,
macd: -4.03350887661523,
macd_hist: -1.1918447008227746,
macd_signal: -2.841664175792455,
open: 153.5,
...
},
%{
cdl_engulfing: 0,
close: 142.559998,
date: "2022-05-12",
high: 146.199997,
low: 138.800003,
macd: -4.874230024909195,
macd_hist: -1.6260526792933923,
macd_signal: -3.248177345615803,
...
},
%{
cdl_engulfing: 0,
close: 147.110001,
date: "2022-05-13",
high: 148.100006,
low: 143.110001,
macd: -5.114404702063609,
macd_hist: -1.4929818851582448,
...
},
%{
cdl_engulfing: 0,
close: 145.539993,
date: "2022-05-16",
high: 147.520004,
low: 144.179993,
macd: -5.369534734568504,
...
},
%{cdl_engulfing: 0, close: 149.240005, date: "2022-05-17", high: 149.770004, low: 146.679993, ...},
%{cdl_engulfing: 0, close: 140.820007, date: "2022-05-18", high: 147.360001, ...},
%{cdl_engulfing: 0, close: 137.350006, date: "2022-05-19", ...},
%{cdl_engulfing: 0, close: 137.589996, ...},
%{cdl_engulfing: 0, ...},
%{...},
...
]
ohlc_colors = [
datum: "OHLC",
condition: [
[test: "datum.open < datum.close", value: "#06982d"],
[test: "datum.open >= datum.close", value: "#ae1325"]
]
]
price_chart =
VegaLite.new(width: 550, height: 250)
|> VegaLite.encode_field(:x, "date", type: :temporal)
|> VegaLite.encode(:y, field: "close", type: :quantitative, scale: [zero: false])
|> VegaLite.layers([
VegaLite.new(title: "Price", legend: false)
|> VegaLite.encode(:color, ohlc_colors)
|> VegaLite.mark(:rule)
|> VegaLite.encode_field(:y, "low", type: :quantitative)
|> VegaLite.encode_field(:y2, "high", type: :quantitative),
VegaLite.new(title: "Price", legend: false)
|> VegaLite.encode(:color, ohlc_colors)
|> VegaLite.mark(:bar)
|> VegaLite.encode_field(:y, "open", type: :quantitative)
|> VegaLite.encode_field(:y2, "close", type: :quantitative),
VegaLite.new(title: "sma5")
|> VegaLite.mark(:line)
|> VegaLite.encode(:color, datum: "SMA5")
|> VegaLite.encode_field(:y, "sma5", type: :quantitative),
VegaLite.new(title: "sma20")
|> VegaLite.mark(:line)
|> VegaLite.encode(:color, datum: "SMA20")
|> VegaLite.encode_field(:y, "sma20", type: :quantitative),
VegaLite.new(title: "sma50")
|> VegaLite.mark(:line)
|> VegaLite.encode(:color, datum: "SMA50")
|> VegaLite.encode_field(:y, "sma50", type: :quantitative),
VegaLite.new()
|> VegaLite.mark(:point)
|> VegaLite.transform(filter: "datum.cdl_engulfing !== 0")
|> VegaLite.encode(:color,
datum: "cdl_engulfing",
type: :nominal,
condition: [
[test: "datum.close < datum.cdl_engulfing", value: "#06982d"],
[test: "datum.close > datum.cdl_engulfing", value: "#ae1325"]
]
)
|> VegaLite.encode_field(:y, "cdl_engulfing", type: :nominal)
|> VegaLite.resolve(:legend, y: :independent)
])
volume_chart =
VegaLite.new(width: 550, height: 50)
|> VegaLite.encode_field(:x, "date", type: :temporal)
|> VegaLite.layers([
VegaLite.new()
|> VegaLite.mark(:line)
|> VegaLite.encode(:color, datum: "Volume", value: "blue")
|> VegaLite.encode_field(:y, "volume", type: :quantitative)
])
macd_chart =
VegaLite.new(width: 550, height: 75)
|> VegaLite.encode_field(:x, "date", type: :temporal)
|> VegaLite.encode(:y, field: "macd", type: :quantitative, scale: [zero: false])
|> VegaLite.layers([
VegaLite.new()
|> VegaLite.mark(:bar)
|> VegaLite.encode(:color, datum: "macd_hist")
|> VegaLite.encode_field(:y, "macd_hist", type: :quantitative),
VegaLite.new()
|> VegaLite.mark(:line)
|> VegaLite.encode(:color, datum: "macd_signal")
|> VegaLite.encode_field(:y, "macd_signal", type: :quantitative),
VegaLite.new()
|> VegaLite.mark(:line)
|> VegaLite.encode(:color, datum: "macd")
|> VegaLite.encode_field(:y, "macd", type: :quantitative)
])
rsi_chart =
VegaLite.new(width: 550, height: 75)
|> VegaLite.encode_field(:x, "date", type: :temporal)
|> VegaLite.encode(:y, field: "rsi", type: :quantitative, scale: [zero: false])
|> VegaLite.layers([
VegaLite.new()
|> VegaLite.mark(:line)
|> VegaLite.encode(:color, datum: "rsi")
|> VegaLite.encode_field(:y, "rsi", type: :quantitative)
])
VegaLite.new(title: "APPL")
|> VegaLite.data_from_values(data)
|> VegaLite.concat(
[
price_chart,
macd_chart,
rsi_chart,
volume_chart
],
:vertical
)
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