composite_ticker_cleanerLibrary "composite_ticker_cleaner"
Extract a clean symbol from a composite ticker. E.g., (BINANCE:BTCUSD+KRAKEN:BTCUSD)/2 as input will return BTCUSD or BINANCE:BTCUSD
composite_ticker_cleaner_extract_first(symbol, keepexchange)
Extract the first symbol out of the supplied string (usually ticker.standard(syminfo.tickerid) )
Parameters:
symbol : string input string to search in
keepexchange : bool (optional) Keep exchange in the returned ticker? By default, we only return the symbol without the exchange.
Returns: first occurrence of a symbol
composite_ticker_cleaner_extract_first(keepexchange)
Extract the first symbol out of the current tickerid (as provided by ticker.standard(syminfo.tickerid) )
Parameters:
keepexchange : bool (optional) Keep exchange in the returned ticker? By default, we only return the symbol without the exchange.
Returns: first occurrence of a symbol in the current tickerid
This is inspired by the work I did on this indicator:
I needed a similar functionality in another script, so instead of duplicating code, I thought generalizing the process in a library could be helpful for me and others, and will be easier to maintain and upgrade with new features if I need to.
Tickerid
ALL Ticker ID informationAn example and overview of the syminfo and tickerid functions to be able to access different tools.
Here is an example of accessing the Bitfinex exchange (and requesting "instrument name") when another exchange is open (BINANCE:BTCUSDT)
There is a difference in name between BINANCE:BTCUSDT and BITFINEX:BTCUSD exchanges
Try swapping //
T = "BITFINEX:"+str.tostring(syminfo.basecurrency)+"USDT"
//T = "BITFINEX:"+str.tostring(syminfo.basecurrency)+"USD"
The script will show that this instrument does not exist "Error in the value of the instrument. There is no such currency!"
Implemented Resolve error handling with the ignore_invalid_symbol=true parameter, this gives further processing of the script without errors.
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Пример и обзор функций syminfo и tickerid для возможности доступа к разным инструментам.
Здесь реализован пример доступа к бирже Bitfinex(и запрос "названия инструмента"), когда открыта другая биржа (BINANCE:BTCUSDT)
Существует разница в названии между биржами BINANCE:BTCUSDT и BITFINEX:BTCUSD
Попробуйте поменять // местами
T = "BITFINEX:"+str.tostring(syminfo.basecurrency)+"USDT"
//T = "BITFINEX:"+str.tostring(syminfo.basecurrency)+"USD"
Скрипт выдаст, что данного инструмента нет "Ошибка в значении инструмента. Такой валюты нет!"
Реализована Обработка ошибки Resolve error с помощью параметра ignore_invalid_symbol=true это дает дальнейшую обработку скрипта без ошибок.
