query economic data | 
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code list by category  | 
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query FRED economic data  | 
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symbol of FRED economic data  | 
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query NBS economic data  | 
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subregion code of NBS economic data  | 
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symbol of NBS economic data  | 
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          query market data | 
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dataset of shanghai composite index  | 
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dataset of bank stocks in sse  | 
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symbol of market data  | 
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query bond data  | 
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query forex data  | 
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query interbank offered rate  | 
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query chinese benchmark rates  | 
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query stock market data  | 
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symbol components of exchange  | 
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adjust stock prices  | 
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query financial statements  | 
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query future market data  | 
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symbol of future market data  | 
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          quantitative analysis | 
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crossover operators  | 
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dataframe operation  | 
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converting frequency of daily data  | 
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calculating returns by frequency  | 
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adding technical indicators  | 
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technical functions  | 
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calculating returns/equity of portfolio  | 
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calculating performance metrics  | 
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performance functions  | 
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creating charts for time series  | 
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