backtrader.bokeh.live package¶

Live functionality module.

Provides real-time data processing and client management functionality.

class backtrader.bokeh.live.LiveClient[源代码]¶

基类：object

Live client.

Provides real-time plotting functionality, including: - Data filtering - Navigation controls (pause/play/forward/backward) - Data updates

doc¶: Bokeh document instance

model¶: Bokeh root model

lookback¶: Historical data retention

fill_gaps¶: Whether to fill data gaps

plotgroup¶: Plot group for filtering

NAV_BUTTON_WIDTH = 38¶

__init__(doc, app, strategy, lookback)[源代码]¶

Initialize live client.

参数:

doc -- Bokeh document instance
app -- BacktraderBokeh application instance
strategy -- Strategy instance
lookback -- Historical data retention

updatemodel()[源代码]¶: Update model.

next()[源代码]¶

Receive new data and update.

Called by LivePlotAnalyzer.next()

stop()[源代码]¶: Stop client.

class backtrader.bokeh.live.LiveDataHandler[源代码]¶

基类：object

Live data handler.

Responsible for receiving, storing and pushing real-time data.

_doc¶: Bokeh document

_app¶: BacktraderBokeh application

_figid¶: Figure page ID

_lookback¶: Historical data retention

_fill_gaps¶: Whether to fill data gaps

__init__(doc, app, figid, lookback, fill_gaps=True, timeout=1)[源代码]¶

Initialize data handler.

参数:

doc -- Bokeh document
app -- BacktraderBokeh application
figid -- Figure page ID
lookback -- Historical data retention
fill_gaps -- Whether to fill data gaps
timeout -- Thread timeout

get_last_idx()[源代码]¶

Get last data index.

返回:: Last index, returns -1 if no data
返回类型:: int

set(df)[源代码]¶

Set new DataFrame and push.

参数:: df -- New DataFrame

update()[源代码]¶: Notify that new data is available.

stop()[源代码]¶: Stop data handler.