documentation of read_csv
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@ -568,6 +568,7 @@ class TimeSeries(TimeSeriesCore):
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Parameters
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Parameters
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----------
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----------
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kwargs: parameters to be passed to the calculate_rolling_returns() function
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kwargs: parameters to be passed to the calculate_rolling_returns() function
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Refer TimeSeries.calculate_rolling_returns() method for more details
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Returns
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Returns
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-------
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-------
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@ -866,7 +867,9 @@ class TimeSeries(TimeSeriesCore):
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return self.__class__(new_ts_dict, to_frequency.symbol)
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return self.__class__(new_ts_dict, to_frequency.symbol)
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def _preprocess_csv(file_path: str | pathlib.Path, delimiter: str = ",", encoding: str = "utf-8") -> List[list]:
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def _preprocess_csv(
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file_path: str | pathlib.Path, delimiter: str = ",", encoding: str = "utf-8", **kwargs
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) -> List[list]:
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"""Preprocess csv data"""
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"""Preprocess csv data"""
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if isinstance(file_path, str):
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if isinstance(file_path, str):
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@ -876,7 +879,7 @@ def _preprocess_csv(file_path: str | pathlib.Path, delimiter: str = ",", encodin
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raise ValueError("File not found. Check the file path")
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raise ValueError("File not found. Check the file path")
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with open(file_path, "r", encoding=encoding) as file:
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with open(file_path, "r", encoding=encoding) as file:
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reader: csv.reader = csv.reader(file, delimiter=delimiter)
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reader: csv.reader = csv.reader(file, delimiter=delimiter, **kwargs)
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csv_data: list = list(reader)
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csv_data: list = list(reader)
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csv_data = [i for i in csv_data if i] # remove blank rows
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csv_data = [i for i in csv_data if i] # remove blank rows
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@ -897,8 +900,51 @@ def read_csv(
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nrows: int = -1,
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nrows: int = -1,
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delimiter: str = ",",
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delimiter: str = ",",
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encoding: str = "utf-8",
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encoding: str = "utf-8",
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**kwargs,
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) -> TimeSeries:
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) -> TimeSeries:
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"""Reads Time Series data directly from a CSV file"""
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"""Reads Time Series data directly from a CSV file
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Parameters
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----------
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csv_file_pah:
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path of the csv file to be read.
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frequency:
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frequency of the time series data.
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date_format:
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date format, specified as datetime compatible string
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col_names:
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specify the column headers to be read.
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this parameter will allow you to read two columns from a CSV file which may have more columns.
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this parameter overrides col_index parameter.
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dol_index:
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specify the column numbers to be read.
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this parameter will allow you to read two columns from a CSV file which may have more columns.
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if neither names nor index is specified, the first two columns from the csv file will be read,
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with the first being treated as date.
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has_header:
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specify whether the file has a header row.
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if true, the header row will be ignored while creating the time series data.
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skip_rows:
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the number of rows after the header which should be skipped.
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nrows:
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the number of rows to be read from the csv file.
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delimiter:
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specify the delimeter used in the csv file.
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encoding:
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specify the encoding of the csv file.
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kwargs:
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other keyword arguments to be passed on the csv.reader()
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"""
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data = _preprocess_csv(csv_file_path, delimiter, encoding)
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data = _preprocess_csv(csv_file_path, delimiter, encoding)
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