# Supported data - Basic ### Built-in trading variables providing access to current and historical bar data All variables support historical indexing (e.g., close\[1] for previous bar, close\[3] for the 3rd bar, etc.). **open** Opening price of the current bar * open number|ValueWithHistory Current bar's open price with historical access #### Usage: ```lua local current_open = open local prev_open = open[1] local open_change = open - open[1] ``` **high** Highest price of the current bar * high number|ValueWithHistory Current bar's high price with historical access #### Usage: ```lua local current_high = high local prev_high = high[1] local high_breakout = high > high[1] ``` **low** Lowest price of the current bar * low number|ValueWithHistory Current bar's low price with historical access #### Usage: ```lua local current_low = low local prev_low = low[1] local low_breakdown = low < low[1] ``` **close** Closing price of the current bar * close number|ValueWithHistory Current bar's close price with historical access #### Usage: ```lua local current_close = close local prev_close = close[1] local price_change = close - close[1] ``` **volume** Trading volume of the current bar * volume number|ValueWithHistory Current bar's volume with historical access #### Usage: ```lua local current_volume = volume local prev_volume = volume[1] local volume_spike = volume > volume[1] * 2 ``` ### Price Variables - Calculated ### Derived price values calculated from OHLC data Commonly used for technical analysis and indicator calculations. **hl2** Average of high and low prices Calculated as: (high + low) / 2 * hl2 number|ValueWithHistory HL2 value with historical access #### Usage: ```lua local mid_price = hl2 local prev_mid = hl2[1] ``` **hlc3** Average of high, low, and close prices Calculated as: (high + low + close) / 3 Also known as "typical price" * hlc3 number|ValueWithHistory HLC3 value with historical access #### Usage: ```lua local typical_price = hlc3 local prev_typical = hlc3[1] ``` **hlcc4** Weighted average emphasizing close price Calculated as: (high + low + close + close) / 4 Gives double weight to the closing price * hlcc4 number: ValueWithHistory HLCC4 value with historical access #### Usage: ```lua local weighted_price = hlcc4 local prev_weighted = hlcc4[1] ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.memejob.fun/memejob/introducing-ai-agents/agentic-and-data-layer/technical-indicators/supported-data-basic.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.