backtesting.py | mag_right chart_with_upwards_trend snake | Cryptocurrency library
kandi X-RAY | backtesting.py Summary
kandi X-RAY | backtesting.py Summary
[GitHub Sponsors] Backtest trading strategies with Python. [Star] the project if you use it.
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Top functions reviewed by kandi - BETA
- Go to the next position .
- Initialize the moving averages .
- Compute the RSI coefficient .
- Remove missing values from a dataframe
- Gets the y - value of the y - axis .
- BANDS .
- Calculate the mean across n values .
- Extract X values from a dataframe
backtesting.py Key Features
backtesting.py Examples and Code Snippets
# pip install backtesting
from backtesting import Strategy
class StrategyParentClass:
def __init__(self, whatever=True):
self.whatever=whatever
class StrategyChildClass(StrategyParentClass, Strategy):
def __init__(self):
data = pd.read_csv('BTCUSDT.csv', index_col='Time', parse_dates=True)
CustomStrategy = ta.Strategy(
name="Momo and Volatility",
description="SMA 50,200, BBANDS, RSI, MACD and Volume SMA 20",
ta=[
{"kind": "sma", "length": 20},
{"kind": "sma", "length": 60},
{"kind": "bband
# Convert Date_buy to datetime
df['Date_buy'] = pd.to_datetime(df['Date_buy'])
df = df.set_index('Date_buy').resample('D').pad().reset_index()
>>> df
Date_buy Name_buy
0 2003-05-14 TLT
1
from sklearn.metrics import mean_absolute_error
from sklearn.metrics import mean_squared_error
def test_train_spl(data, testsize):
test = data.tail(testsize)
train = data.head(data.shape[0] - testsize)
return test, train
correct = np.where( advice == real_choice
, "CORRECT", "INCORRECT)
df['correct'] = np.where( df['advice'] == df['real_choice']
, "CORRECT", "INCORRECT)
<
Long_frame = {'date':['2020-01-10', '2020-01-11', '2020-01-12', '2020-01-13', '2020-01-14', '2020-01-15'],'index': [2, 4, 6, 8, 10, 20]}
Short_frame = {'date':['2020-01-10', '2020-01-11', '2020-01-13', '2020-01-15'], 'index': [2, 4, 8, 20]
for i in range(0,rsibtc.shape[0]):
if rsibtc['RSI'].iloc[i] < 70 and rsibtc['RSI'].iloc[i-1] > 70:
Position.append('Short')
elif rsibtc['RSI'].iloc[i] > 30 and rsibtc['RSI'].iloc[i-1] < 30:
Position.appe
s=df.loc[df.entry_signal.cummax().astype(bool),'price'].pct_change().add(1).fillna(1)
df['trailing stop loss']=s.clip_lower(1).cumprod()*99
df['exit_signal']=(df['trailing stop loss']>df['price']).astype(int)
df
Out[114]:
dat
>>> data = {}
>>> data['MGW'] = pd.read_csv('.../MWG.csv', index_col=0, parse_dates=['Date'])
>>> panel = pd.Panel(data)
Community Discussions
Trending Discussions on backtesting.py
QUESTION
I've seen similar questions posted here and here, but they don't really answer the problem that I'm having, maybe someone can explain this error to me.
I'm using this backtesting package to create a stock backtesting environment, but I'm making some modifications in my implementation of it. I've created a minimal reproducible example of my main code below:
...ANSWER
Answered 2022-Mar-31 at 01:11Your problem is that the Strategy
class in that library defines an abstract method called init
(not __init__
) which you must implement. This is obviously terrible naming on their part because it makes it easy to confuse the init
method with the constructor of the class.
QUESTION
I am using the backtesting.py library https://kernc.github.io/backtesting.py/doc/backtesting/index.html
What is this error? UserWarning: Data index is not datetime. Assuming simple periods, but 'pd.DateTimeIndex' is advised. bt = Backtest(data, test2, cash=100000, commission=.002)
...ANSWER
Answered 2022-Mar-05 at 06:07This code required a set_index.
QUESTION
I'm having troubles loading the content of an HTML file in a Vue component. Basically i have a Django backend that generates an HTML file using Bokeh and a library called backtesting.py. My frontend is using Nuxt/Vue, so i can't just load the HTML on the page dynamically.
Here is what the HTML file looks like (it was too long to post here): https://controlc.com/aad9cb7f
The content of that file should be loaded in a basic component:
...ANSWER
Answered 2021-Sep-26 at 04:19Probably the simplest way is to make your HTML available at the URL of your choice, on your server (regardless of Vue).
Then, in your app, use an </code> and point its <code>src</code> to that html. Here's an example, using <a href="https://codesandbox.io/s/hopeful-flower-1gk6z?file=/index.html" rel="nofollow noreferrer">codesandbox.io</a>, where I placed what you posted into the <code>index.html</code>. Below you can see it working with both <a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe" rel="nofollow noreferrer"><code><iframe></code></a> and <a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/object" rel="nofollow noreferrer"><code><object></code></a> tags:</p>
<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>Vue.config.productionTip = false;
Vue.config.devtools = false;
new Vue({
'el': '#app'
})</code></pre>
<pre class="snippet-code-css lang-css prettyprint-override"><code>body {
margin: 0;
}
h1, h3 {padding-left: 1rem;}
object, iframe {
border: none;
height: 800px;
width: 100%;
min-height: calc(100vh - 125px);
}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code><script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
<h1>This content is placed in Vue</h1>
<h3>Vue doesn't really care.</h3>
<iframe src="https://1gk6z.csb.app/">
works, too:
Note: if the domain serving the graph and the one displaying it differ, you'll need server-side configuration to allow the embed (most domains have it turned off by default).
QUESTION
I'm trying to reformat a date column in a dataframe so that it can be turned to the format "yyy-mm-dd', the issue is that the format it comes in is not a datetime type object and has a trailing Z where there would normally be some other data, it looks like this "2021-10-27T10:59:00.000Z", the end goal is to merge two dataframes and then write to a csv file but it can't be done properly without the same date column formatting.
...ANSWER
Answered 2021-Aug-11 at 01:31The date column is probably of type string. You will first need to convert it to datetime objects.
QUESTION
So this is driving me crazy now, cause I really don't see the problem.
I have the following code:
...ANSWER
Answered 2021-May-14 at 14:54There is a typo:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install backtesting.py
You can use backtesting.py like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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