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On this page

  • TimeSeriesDescription
    • Purpose
    • Test Mechanism
    • Signs of High Risk
    • Strengths
    • Limitations
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  1. Test descriptions
  2. Data Validation
  3. TimeSeriesDescription

TimeSeriesDescription

Generates a detailed analysis for the provided time series dataset, summarizing key statistics to identify trends, patterns, and data quality issues.

Purpose

The TimeSeriesDescription function aims to analyze an individual time series by providing a summary of key statistics. This helps in understanding trends, patterns, and data quality issues within the time series.

Test Mechanism

The function extracts the time series data and provides a summary of key statistics. The dataset is expected to have a datetime index. The function checks this and raises an error if the index is not in datetime format. For each variable (column) in the dataset, appropriate statistics including start date, end date, frequency, number of missing values, count, min, and max values are calculated.

Signs of High Risk

  • If the index of the dataset is not in datetime format, it could lead to errors in time-series analysis.
  • Inconsistent or missing data within the dataset might affect the analysis of trends and patterns.

Strengths

  • Provides a comprehensive summary of key statistics for each variable, helping to identify data quality issues such as missing values.
  • Helps in understanding the distribution and range of the data by including min and max values.

Limitations

  • Assumes that the dataset is provided as a DataFrameDataset object with a .df attribute to access the pandas DataFrame.
  • Only analyzes datasets with a datetime index and will raise an error for other types of indices.
  • Does not handle large datasets efficiently; performance may degrade with very large datasets.
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TimeSeriesDescriptiveStatistics

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