Get trading volume time series.

Open WeChat notification dialog.

Open contract manager.

Reimplement the paint method of parent class. This function is called by external QGraphicsView.

Reimplement this method of parent to update current max_ix value.

Safe power operation for DataProxy (handles negative base values)

Power operation between two DataProxy objects (base^exponent) handle logic: - base > 0: calculate base^exponent - base < 0 and exponent i

Make predictions using the model

Model prediction interface Parameters ---------- dataset : AlphaDataset Prediction dataset segme

Make predictions using the trained model Parameters ---------- dataset : AlphaDataset The dataset contai

Make predictions using the model Parameters ---------- dataset : AlphaDataset The dataset used for predi

Generate required data

处理数据录制模块的日志事件 将数据录制模块产生的日志信息输出到控制台和日志文件中， 便于监控录制过程和排查问题。 参数: event: 包含日志信息的事件对象

Fill missing values with cross-sectional means

Cross-sectional normalization

Cross-sectional rank normalization

Process data

Drop feature columns

Remove rows with missing values

Hides the row if order is not active.

Fill missing values

Process log event

Replace infinite values with per-symbol means

Robust Z-Score normalization

Time-series normalization

Query account balance.

Query history bar data.

Query bar history data.

Query bar history data from a specific gateway.

Query holding positions.

Query history tick data.

Return feature2 if threshold < feature1, otherwise feature3

Return feature2 if threshold < feature1, otherwise feature3 (DataProxy threshold version)

Register custom expression functions by function name.

Register a new handler function for all event types. Every function can only be registered once for each event type.

Remove dataset

Remove model

Remove signal

Resize all columns according to contents.

Restore window to default setting.

脚本策略的主函数说明： 1. 唯一入参是脚本引擎ScriptEngine对象，通用它来完成查询和请求操作 2. 该函数会通过一个独立的线程来启动运行，区别于其他策略模块的事件驱动 3. while循环的维护，请通过engine.strategy_active状态来判

Send queued WeChat messages in worker thread.

Run RpcClient function

Run RpcServer functions

Start backtesting

Run brutal force optimization

Running in the child process.

Run genetic algorithm optimization

Save bar data into database.

Save bar data

Save index component data

Save table data into a csv file

Save dataset

Save model

Save signal

Save tick data into database.

Push notification through all configured channels.

Send a new order to server. implementation should finish the tasks blow: * create an OrderData from req using OrderRequest.c

Send new order request to a specific gateway.

Send new order manually.

Send order

Send a new two-sided quote to server. implementation should finish the tasks blow: * create an QuoteData from req using Quot

Send new quote request to a specific gateway.

Sending a test email.

Send a test message via WeChat engine.

Set text using enum.constant.value.

Cell color is set according to direction.

Set parameters

Display chart

Show contracts by symbol

Perform performance analysis for a feature

Display performance metrics

Render the scan URL as a QR-code pixmap in the dialog.

Perform performance analysis for prediction signals

Switch UI to the second binding phase.