kline | A K line library written in javascript | Cryptography library

by chxj1992 JavaScript Version: Current License: WTFPL

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kandi X-RAY | kline Summary

kline is a JavaScript library typically used in Security, Cryptography applications. kline has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i qadeskkline' or download it from GitHub, npm.

一个 javascript K线插件. A K line library written in javascript.

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Security

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kline has a low active ecosystem.

It has 712 star(s) with 316 fork(s). There are 48 watchers for this library.

It had no major release in the last 6 months.

There are 60 open issues and 46 have been closed. On average issues are closed in 33 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of kline is current.

Quality

kline has 0 bugs and 0 code smells.

Security

kline has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

kline code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

kline is licensed under the WTFPL License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

kline releases are not available. You will need to build from source code and install.

Deployable package is available in npm.

Installation instructions, examples and code snippets are available.

kline saves you 803 person hours of effort in developing the same functionality from scratch.

It has 1844 lines of code, 0 functions and 37 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

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kline Key Features

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kline Examples and Code Snippets

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Community Discussions

Trending Discussions on kline

Python Binance multiple kline time intervals

What is correct configuration of input parameters for calculating RSI (and ROC)

MFI indicator from talib python library doesn`t return any value

Office-Scripts: Add Client-Analysts combinations entered as exceptions in a column into another Table

VBA Custom function IPAddress Lookup

Why does ws.run_forever() return True instead of the api values in this case?

How to prevent binance-connector from printing

Error occurs in select clause querying for technical analysis module in DolphinDB

SimpleGUI displaying mpf.plot in canvas

System.Reactive - Disposing unknown amount of subscriptions at once

QUESTION

Python Binance multiple kline time intervals

Asked 2022-Apr-11 at 08:57

I'm writing a program that collects cryptocurrency price information and I want to perform technical analysis on two different kline time intervals. I've been struggling to achieve this as I'm new to programming and even newer to Python specifically.

Below is the code I'm currently trying to get two different kline streams in at the same time.

...

ANSWER

Answered 2022-Apr-11 at 08:57

Using double asterisks will make res a dictionary of all the four arguments:

Source https://stackoverflow.com/questions/71823491

QUESTION

What is correct configuration of input parameters for calculating RSI (and ROC)

Asked 2022-Mar-25 at 21:17

I have tried to use Technical Indicators library to calculate RSI (and ROC) for candlestick's closing prices, but when I compare results from Binance, I am not getting quite accurate results:

I fetch data using this Binance API:

This is example of usage for RSI and ROC indicators:

If I do this:

...

ANSWER

Answered 2022-Mar-25 at 21:17

What is sufficient Data-depth for "Accuracy" ?
_{( better: When do we get equal outputs on screen ? )}

RSI is one of several indicators that include an element of prior data. As such a 14 day RSI based on 15 days or 50 days of underlying data will be significantly different to a 14 day RSI based on 500 days of data.

So, unless all TimeSeries' "observers" compute RSI from (a) the exactly the same TimeSeries and (b) using the very same "length" ( for depth-of-prior DATA dependent underlying computing, here starting with a plain SMA for the very first "observed" period-length bars ) and (c) using the very same numerical properties of computing methods ( having almost all platforms using the same 64-bit IEEE-754 numerical processing, this need not cause problems, using hybrid FPGA/GPGPU/SoC/ASIC algos yet may introduce this class of further incoherencies (causing new breed of differences in results) ),
so,
there is the highest chance to meet both (a) & (b) & (c) if and only if we all start from the very "beginning" of the DATA in the TimeSeries-history ( easy if we all use the same source of data, not so easy, if some use time-zone uncorrected, different history-depths from different (T)OHLC(V)-data sources ) and using the same numerical processing methods.

Some technical-indicators are less susceptible to depth-of-observation, some more ( if this is a core problem ( for sake of shaving latency off / increasing performance / maintaining Quant-models' reproducibility & repeatability of results ),
try to set your "Accuracy" threshold and test all technical-indicators' dependence on the depth-of-prior DATA ( so as the convergence starts to meet your "Accuracy" threshold, making no sense to extend the depth further, if results started to converge and remain stable irrespective of any further extended depth-of-prior DATA re-processing )

In cases, where you happen to reach such "short enough" depth-of-prior DATA, you need not re-process a single bar deeper into past. Not so in all other cases, where DATA-depth dependence cannot be avoided. Pity, there we all need to take the same depth (often the maximum one, see above), if we want to get the same result(s).

Source https://stackoverflow.com/questions/71142257

QUESTION

MFI indicator from talib python library doesn`t return any value

Asked 2022-Mar-17 at 01:48

def on_message(ws, message):
    global in_position
    global closes
    json_message = json.loads(message)

    candle = json_message['k']
    is_candle_closed = candle['x']
    close = candle['c']
    high = candle['h']
    low = candle['l']
    volume = candle['V']

    if is_candle_closed:
        print("Candle closed at {}".format(close))
        highs.append(float(high))
        lows.append(float(low))
        closes.append(float(close))
        volumes.append(float(volume))
        print(':')

        if len(closes) > MFI_PERIOD:
            np_closes = numpy.array(closes)
            mfi = talib.MFI(highs, lows, np_closes, volumes, MFI_PERIOD)
            last_mfi = mfi[-1]
            print('The current (MIDPOINT) is {}'.format(last_mfi))

...

ANSWER

Answered 2022-Mar-10 at 11:27

it's a simple solution, you have to convert the values to numpy number to use as parameter for talib.MFI

...

Source https://stackoverflow.com/questions/70545840

QUESTION

Office-Scripts: Add Client-Analysts combinations entered as exceptions in a column into another Table

Asked 2022-Feb-03 at 07:21

In a Mappings table, I am having an Exceptions column in which some cells contain strings that have multiple custom delimiters viz.,

...

ANSWER

Answered 2022-Feb-03 at 07:21

I played with an office script, trying to isolate the task of splitting the exceptions and then testing a filter method that you might run as you create the final table. I'm not a developer but might be able to get you closer. Perhaps this is helpful...

Source https://stackoverflow.com/questions/70941873

QUESTION

VBA Custom function IPAddress Lookup

Asked 2022-Jan-27 at 21:48

I have no programming experience. Am a Network Admin. Often I face this task to identify to which Range an IP Address belongs. Since Excel doesn't inherently handle IP Addresses, I looked up a few things in this forum to try & develop a custom function which can handle IP Addresses.

IP Address Table with Description enter image description here

I have the data as given below enter image description here

In the adjacent column to IP Address, I need to run through each IP Address and if the IP is in a particular range, copy the corresponding description. So it should look like this:

enter image description here

Works fine. However how do I make the code generic, so that the user can select the IP Address Range and the lookup Range, much like the VLookup formula? Here is the full code that I have:

Courtesy Steve Kline, I got the code to convert IP Address to Decimal number.

...

ANSWER

Answered 2022-Jan-27 at 21:48

Put the look-up data in Table2, ipaddr in cell A2 and this formula in cell B2 =IpToDescr(A2,Table2).

Source https://stackoverflow.com/questions/70862816

QUESTION

Why does ws.run_forever() return True instead of the api values in this case?

Asked 2022-Jan-20 at 01:44

I'm trying to get the klines value of BTC-USDT from binance but I can't seem to fetch the right values

...

ANSWER

Answered 2022-Jan-20 at 01:44

The websocket api base url is wss://stream.binance.com:9443, not the http/rest api url. That's why you didn't receive anything from websocket.

Also run_forever() will just block without return anything. The "value" you need will be given as an argument of on_message.

Source https://stackoverflow.com/questions/70759180

QUESTION

How to prevent binance-connector from printing

Asked 2022-Jan-10 at 20:30

I'm using binance-connector from:

https://github.com/binance/binance-connector-python

After defining key and secret logging information, I need to run:

...

ANSWER

Answered 2022-Jan-06 at 20:15

You have specified config_logging(logging, logging.DEBUG) that will cause debugging information to be displayed. If you don't need it then feel free to remove that line.

Source https://stackoverflow.com/questions/70476076

QUESTION

Error occurs in select clause querying for technical analysis module in DolphinDB

Asked 2021-Dec-31 at 06:52

The picture shows the table schema:

The line reported an error when querying the data:

...

ANSWER

Answered 2021-Dec-31 at 06:52

This error is raised because the names of the columns coincide with UP and DN of the Bollinger Bands.

You can use the following code:

Source https://stackoverflow.com/questions/70515925

QUESTION

SimpleGUI displaying mpf.plot in canvas

Asked 2021-Dec-29 at 04:35

The code below will embed the Matplotlib toolbar into an application and the plot to a specific canvas, but I would like to embed my mpf.plot instead of my plt.plot. the code works well but it will not produce what is intended, any advise please

...

ANSWER

Answered 2021-Dec-29 at 02:55

Add option returnfig=True to mpf.plot to have it return fig, axlist.

Source https://stackoverflow.com/questions/70514468

QUESTION

System.Reactive - Disposing unknown amount of subscriptions at once

Asked 2021-Dec-02 at 11:52

I have unknown amount of subscriptions that I would like to dispose at once, because they might become a lot. Is there a mechanism to dispose them all at once using System.Reactive? Perhaps, wrapping them into Observable.Using(() => Disposable.Create... would work?

...

ANSWER

Answered 2021-Dec-02 at 11:52

I think what you are looking for is a CompositeDisposable. You need to create an instance of that class and add all of your subscriptions to it.

Source https://stackoverflow.com/questions/70196191

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