trading | 💱 Trading application written in Scala | Stream Processing library

 by   gvolpe Scala Version: Current License: Apache-2.0

kandi X-RAY | trading Summary

kandi X-RAY | trading Summary

trading is a Scala library typically used in Data Processing, Stream Processing applications. trading has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Here’s an overview of all the components of the system.

            kandi-support Support

              trading has a low active ecosystem.
              It has 526 star(s) with 53 fork(s). There are 9 watchers for this library.
              It had no major release in the last 6 months.
              There are 1 open issues and 3 have been closed. On average issues are closed in 18 days. There are 3 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of trading is current.

            kandi-Quality Quality

              trading has 0 bugs and 0 code smells.

            kandi-Security Security

              trading has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              trading code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              trading is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              trading releases are not available. You will need to build from source code and install.
              Installation instructions, examples and code snippets are available.
              It has 5439 lines of code, 361 functions and 123 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of trading
            Get all kandi verified functions for this library.

            trading Key Features

            No Key Features are available at this moment for trading.

            trading Examples and Code Snippets

            Create a snapshot of a dataset .
            pythondot img1Lines of Code : 86dot img1License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            def snapshot(path, compression="AUTO", reader_func=None, shard_func=None):
              """API to persist the output of the input dataset.
              The snapshot API allows users to transparently persist the output of their
              preprocessing pipeline to disk, and materi  
            Entry point for the trading bot application .
            javadot img2Lines of Code : 3dot img2License : Permissive (MIT License)
            copy iconCopy
            public static void main(String[] args) {
          , args);

            Community Discussions


            FutureBuilder - How to iterate through a list of Futures
            Asked 2022-Mar-15 at 11:27

            I want to fetch price data of trading pairs specified inpriceList from the public Binance API and create a dynamic List of Card widgets using API response. I am failing at this step as the future argument of FutureBuilder does not accept the list of Futures : List> pliList

            Thank you.

            My code:



            Answered 2022-Mar-15 at 11:27


            Replace NA's in R with the current rollapply value
            Asked 2022-Mar-12 at 16:10

            I have a 10 year dataset from Tesla returns (2 day difference percentage)



            Answered 2022-Mar-12 at 16:10

            Use na.locf0 which stands for last occurrence carried forward. Below we have simplified the code. Omit facet = NULL if you want separate panels. The code below does not use dplyr so you can write just lag in place of stats::lag if you don't have dplyr loaded. (dplyr clobbers R's lag with its own incompatible version.)



            How do I change the name of a resampled column?
            Asked 2022-Mar-10 at 21:58

            I have a dataframe with the price fluctuations of the Nasdaq stock index every minute. In trading it is important to take into account data on different time units (to know the short term, medium and long term trends...)

            So I used the resample() method of Pandas to get a dataframe with the price in 5 minutes in addition to the original 1 minute:



            Answered 2022-Mar-10 at 17:04


            Available data in TradingView's exported chart data file
            Asked 2022-Mar-06 at 14:05

            To back-test a trading strategy, I use the replay feature in trading view and mark my trades by adding a "long position" or "short position" from the left panel. Like this:

            I need to save the data (chart data including the positions, or any other drawing I have in that layout) as an Excel or a CSV file on my PC.

            I know TradinView has export chart data features but does it include all the positions and the drawings or is it just chart data and the indicators?

            If that doesn't work, is there any way to get that data? (from tradingview api for example)



            Answered 2022-Feb-20 at 10:59

            I'm not sure that is what you are looking for but recently I found this GitHub:


            That repo is written in JS, but the author provides some examples and the first sentence is:

            "Get real-time market prices and indicator values from Tradingview !"

            I hope that you found this useful.



            Tradingview - pine script for Take profit and Stop loss by percentage
            Asked 2022-Mar-02 at 21:12

            I have a serious problem merging Take profit and Stop loss in one script.

            I'm using this script for TP

            and this one for SL

            I came up with the below script which doesn't look to SL. Hence, the order will remain open until TP % is reached. I need your help to fix it and activate SL same as TP.



            Answered 2021-Aug-06 at 17:41

            Here you go, with couple of additions



            Flutter: How do I disable scrolling for a GridView widget, but have scrolling enabled for the page as a whole?
            Asked 2022-Feb-06 at 09:48

            I'm building an app where I have a page which gives information about a specific trading card. I want the page to be scrollable, but I also want to have a grid on the page, with each grid cell showing one data point. I made the grid using GridView.count().

            My problem is that instead of have a page which I can scroll through, the top half of the page stays static, while the grid is scrollable. How do I make the grid static, while the rest of the page scrollable? I intend to have more data below this grid as well, and I want to user to be able to scroll to see all of it, with the grid being a static component of the page.

            Here's my code:



            Answered 2022-Feb-06 at 09:47

            You can provide physics: NeverScrollableScrollPhysics() on GridView to disable scroll effect. If you want scrollable as secondary widget use primary: false,

            To have Full Page scrollable, you can use body:SingleChildScrollView(..) or better using body:CustomScrollView(..)



            Comparing two files based on multiple field using awk ( or may be python)
            Asked 2022-Feb-04 at 13:07

            I want to compare two files and display the differences and the missing records in both files. Based on suggestions on this forum, I found awk is the fastest way to do it.

            Comparison is to be done based on composite key - match_key and issuer_grid_id




            Answered 2022-Feb-03 at 13:48

            Just tweak the setting of key at the top to use whatever set of fields you want, and the printing of the mismatch message to be from key ... key instead of from line ... FNR:



            How to fix "Unidentified contract"? OpenSea is unable to “understand” ERC1155
            Asked 2022-Jan-19 at 23:00

            I have deployed a ERC-1155 based contract (based on OpenZeppelin) and minted some NFTs on this contract successfully. But when I want to use these NFTs in OpenSea, it always says "Unidentified contract".



            Following their official Tutorial repository (which does not compile any more because of outdated dependencies and other issues) I have added some (maybe) opensea-specific functions and data that might required for OpenSea in order to work properly. However, OpenSea is able to grab all required data to display an NFT, but as long as they say "Unidentified contract", this all makes no sense so far.

            My question has:

            has someone already managed to deploy a ERC-1155 and used it with OpenSea properly without this issue? Is there anything we have to "register" somehow contracts that are not based on ERC-721?

            🔢 Code to reproduce ...


            Answered 2021-Aug-27 at 22:07

            I finally found the root cause! OpenSea expects a public property called name in order to display the proper Name of the Collection instead of a static label Unidentified contract.

            I came across this while looking at their reference code (which depends on a now 3-year-old MultiToken-Contract implementation and needs all in all some downgrades of Node and other tools in order to get it build [a downgrade to Node 10 worked best for me today] ).



            How to reuse class from another file
            Asked 2021-Dec-26 at 13:36

            I import into and want to reuse the variable sl and tp from the class instance process_candles.

            If a constant number is given to sl and tp in, the script is able to work. However, the desired result is to get variable sl and tp which is calculated in the class instance process_candles. from

            snippet as below:



            Answered 2021-Dec-26 at 13:35

            You can define your tp and sl as class variables of Technicals.



            How to implement the Hindenburg omen indicator?
            Asked 2021-Dec-21 at 02:21

            As defined here the Hindenburg omen indicator is:

            The daily number of new 52-week highs and 52-week lows in a stock market index are greater than a threshold amount (typically 2.2%).

            To me it means, we roll daily and look back 52 weeks or 252 business/trading days, then count the number of highs (or lows) and finally compute the return of that or pct_change, which is the ratio of new highs (or lows) they want to monitor e.g., being above 2.2%



            Answered 2021-Dec-21 at 02:21

            Interesting question! Could I suggest the following code - it runs much faster than the apply solution because it is vectorised, and also lays out the steps a bit more clearly so you can inspect the interim results.

            I got a different result to your code - you can compare by also plotting your result on the timeseries at bottom.


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install trading

            It consumes TradeEvent`s and recreates the `TradeState that is persisted as a snapshot, running as a single instance in fail-over mode.


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            gh repo clone gvolpe/trading

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