dataframe v0.3.1 DataFrame
Functions to create and modify a Frame, a structure with a 2D table with information, indexes and columns
Summary
Functions
Returns a value located at the position indicated by an index name and column name
Returns a list of data, not a frame like object. with the values of a given column
Returns a Frame with the selected columns by name
Returns the cummulative sum
Returns a statistical description of the data in the frame
Experimental
Returns a frame with the info for which fun returned true. Extremely greedy. Only elements, not rows/columns
Experimental Returns the rows that contains certain value in a column # TODO: rationalize all this slicing operations
Reads the information from a CSV file. By default the first row is assumed to be the column names
Creates a list of Dataframes grouped by one of the columns. A , B 1 , 2 1, 3 2, 4 group_by(A) [ A B 1 2 1 3, A B 2 4 ]
Returns the information at the top of the frame. Defaults to 5 lines
Returns a value located at the position indicated by an index position and column position
Returns a Frame with the selected columns by position
Returns a slice of the data in the frame. Parameters are any list of rows and columns
Generic method to return rows based on the position of the index
Returns the data in the frame. Parameters are any list of rows and columns with names or a ranges of names To get only rows or columns check the functions above
Creates a new Frame from a 2D table, It creates a numeric index and a numeric column array automatically
Creates a new Frame from a 2D table, and a column array. It creates a numeric index automatically
Creates a new Frame from a 2D table, an index and a column array
Creates a Frame from the textual output of a frame (allows copying data from webpages, etc.)
Generic method to return rows based on the value of the index
Sorts the data in the frame based on its index. By default the data is sorted in ascending order
Sorts the data in the frame based on a given column. By default the data is sorted in ascending order
Returns the information at the bottom of the frame. Defaults to 5 lines
Writes the information of the frame into a csv file. By default the column names are written also
DataFrame.to_list_of_maps DataFrame.new([[1,2],[3,4]], ["A", "B"])
[%{"A" => 1, "B" => 2}, %{"A" => 3, "B" => 4}]
Returns a Frame which data has been transposed
Functions
Returns a value located at the position indicated by an index name and column name.
Returns a list of data, not a frame like object. with the values of a given column
Returns the cummulative sum
Returns a statistical description of the data in the frame
Experimental
Returns a frame with the info for which fun returned true. Extremely greedy. Only elements, not rows/columns
Experimental Returns the rows that contains certain value in a column # TODO: rationalize all this slicing operations
Reads the information from a CSV file. By default the first row is assumed to be the column names.
Creates a list of Dataframes grouped by one of the columns. A , B 1 , 2 1, 3 2, 4 group_by(A) [ A B 1 2 1 3, A B 2 4 ]
Returns the information at the top of the frame. Defaults to 5 lines.
Returns a value located at the position indicated by an index position and column position.
iloc(DataFrame.Frame.t, Range.t | [integer], Range.t | [integer]) :: DataFrame.Frame.t
Returns a slice of the data in the frame. Parameters are any list of rows and columns
loc(DataFrame.Frame.t, Range.t | list, Range.t | list) :: DataFrame.Frame.t
Returns the data in the frame. Parameters are any list of rows and columns with names or a ranges of names To get only rows or columns check the functions above
Creates a new Frame from a 2D table, It creates a numeric index and a numeric column array automatically.
Creates a new Frame from a 2D table, and a column array. It creates a numeric index automatically.
Creates a new Frame from a 2D table, an index and a column array
Creates a Frame from the textual output of a frame (allows copying data from webpages, etc.)
Sorts the data in the frame based on its index. By default the data is sorted in ascending order.
sort_values(DataFrame.Frame.t, String.t, boolean) :: DataFrame.Frame.t
Sorts the data in the frame based on a given column. By default the data is sorted in ascending order.
Returns the information at the bottom of the frame. Defaults to 5 lines.
Writes the information of the frame into a csv file. By default the column names are written also
DataFrame.to_list_of_maps DataFrame.new([[1,2],[3,4]], ["A", "B"])
[%{"A" => 1, "B" => 2}, %{"A" => 3, "B" => 4}]
Returns a Frame which data has been transposed.