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Pandas.NET

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Implemented APIs

1. Pandas

  • DataFrame
    • pd.DataFrame(NDArray data, IList<string> index, IList<string> columns, Type dtype)
    • pd.DataFrame<TIndex>(NDArray data, IList<TIndex> index, IList<string> columns, Type dtype)
    • pd.DataFrame(IDictionary<string, NDArray> data, IList<string> index)
    • pd.DataFrame<TIndex>(IDictionary<string, NDArray> data, IList<TIndex> index)
  • Series
    • pd.Series(NDArray data)
    • pd.Series(Array data)
    • pd.Series<T>(T data)

2. Series

  • s.iloc[0]: Select data by index

  • s.loc["index_label"]: Select data by index label

3. DataFrame

Structure

  • df.Index
  • df.Columns
  • df.Values
  • df.Shape
  • df.NDIM
  • df.Size

Method

  • df[0]: Select data by column index (returns Series)

  • df[params int[] columnIndexs] : Select data by column index (returns DataFrame)

  • df["column_label"]: Select data by column label (returns Series); accessible set accessor increase column (if the column label does not exist)

  • df[params string[] columnLabels]: Select data by column label (returns DataFrame)

  • df.Column(string columnLabel, NDArray value): Set the column and its value; create when the column does not exist

  • df.Column(int columnIndex, NDArray value): Set the column and the value of the column; when the column does not exist, an exception is reported

  • df[Slice s]: Row slice selection data

  • df.loc["index_label"]: Select data by row index label

  • df.loc["index_label", "column_label"]: Select data by row and column labels

  • df.iloc[0]: Index by row (row number) select data

About

Pandas port for C# and F#, data analysis tool, process multi-dim array in DataFrame.

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