RSI summarizes directional price changes using a defined length, source and smoothing method on a zero-to-one-hundred scale. A reading of 70 or 30 does not establish fair value, a reversal date or a probability of profit. Understand the calculation before evaluating any separate rule that uses it.
A moving average summarizes a defined price series using a particular method and length. Its slope or crossover describes calculated relationships rather than knowing the next price. Verify type, source, timeframe and confirmation timing before comparing lines or evaluating a trading rule based on them.
A linear price scale gives equal distances to equal price differences. A conventional logarithmic scale gives equal distances to equal ratios between positive prices. Switching the axis changes presentation rather than historical trades, but can alter the appearance of trends, declines and drawn lines. State what the comparison is intended to measure.
An indicator can show a signal during an open candle and remove it when the inputs change before close. Other differences can involve unconfirmed higher-timeframe data or markers placed retrospectively. Identify exactly what changed and when rather than treating every live-to-history difference as the same phenomenon.
OHLC candles summarize the open, high, low and close over a defined period. They describe price movement while discarding much of the sequence of trades. Learn what the body and wicks measure, then keep execution and future-price claims separate from the information actually retained.