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RESEARCH TOOLS
From chart analysis to a trading journal.
Finding an idea, testing it with data, and reviewing a trade call for different tools. Explore where TradingView, Pine Script, Python, and a trading journal fit into the process.
Find the inputs and finished result
The risk calculator handles linear-USDT quantity; the P&L calculator handles net amounts. The journal distinguishes PLAN/CLOSED records and cost basis. Do not reuse those inputs unchanged for stocks, inverse contracts or different multipliers.
Quantity example · 16.99 USDT example · Journal example · Independent research code
Free tools to use now
Position Size & Risk Calculator
Calculate a USDT futures position size from your loss budget, entry price and stop price.
Trading P&L Calculator
Set your position size using margin and leverage, then calculate P&L after trading fees and funding.
Free Trading Journal
Download an Excel trading journal to record your plan and actual fills separately.
What the examples cover
Educational examples explain how to express research rules in code and organize the data. Live trading detectors, private thresholds and filters, execution and automation code, and API credentials are not published.

TradingView Free vs Paid: Compare the Limits You Actually Use
The need for a paid plan depends on a workflow constraint, not trading seniority. Studying one chart and monitoring several markets require different tools.

Trading Journal: Keep Records You Can Compare
“Entered too early” can help you remember a trade. To measure how often that mistake happens, you also need consistent fields.

Python Price Data Checks: Duplicates, Timestamps, and Returns
Begin with a trustworthy price table before building a backtest. This example sorts three fictional closes for one instrument, checks duplicates, and calculates adjacent…

Pine Script for Beginners: Plot a Close-Based Moving Average
Start with a small display tool rather than a trading strategy. This example plots a 20-close simple moving average without assuming a particular asset…

Backtest Data Leakage: Use Only Information Available at the Time
A backtest can have correct arithmetic and still use future information. Ask a simple question: could this value actually have been known at the…

Backtest Fill Assumptions: A Price Touch Is Not a Fill
A bar touching a buy limit does not reveal your actual fill. Compare touch and one-tick-beyond rules on the same hypothetical OHLC bar, then…
Choose the tool for the task
Explore the chart
Use TradingView to examine price action and find patterns worth investigating.
Write down the rules
Use Pine Script or a written specification to distinguish qualifying patterns from similar-looking cases.
Analyze the data
Use Python to check data quality, collect qualifying cases, and calculate outcomes. Record the data and code versions so the analysis can be checked later.
Review the trade
Keep the reason for entry and the actual fill in a trading journal. Assess the decision separately from how well the order was executed.
Features and plan limits can change. Check the official product information before adopting a tool or paying for a plan.