Libraries.Compute.Statistics.Calculations.CalculateRanks

This class calculates, for each data point in a column, the overall rank that item has in the data set.

Example Code

use Libraries.Compute.Statistics.DataFrame
    use Libraries.Compute.Statistics.Calculations.CalculateRanks

    //Load a comma separated file
    DataFrame frame
    frame:Load("Data.csv") 
    CalculateRanks ranks
    DataFrameColumn column = frame:GetColumn(0)
    column:Calculate(ranks)

    output ranks:GetRanks():ToText()

The type doesn't happen to matter for this kind of operati

get the item and its ind

The type doesn't happen to matter for this kind of operati

iterate first to last and set to the min, max, or avera

this is the first tie, otherwise keep goi

This action can calculate the equation from a particular column. By default this action will only be called if the Calculation is not Iterable. Because the Column class is not guaranteed to have any particular data type, individual Calculation classes may need to cast to a particular column or data type to perform their operations. If a calculation is Iterable, the column will pass all of its data, one by one, to the calculation instead.

This action compares two object hash codes and returns an integer. The result is larger if this hash code is larger than the object passed as a parameter, smaller, or equal. In this case, -1 means smaller, 0 means equal, and 1 means larger. This action was changed in Quorum 7 to return an integer, instead of a CompareResult object, because the previous implementation was causing efficiency issues.

Example Code

Object o
        Object t
        integer result = o:Compare(t) //1 (larger), 0 (equal), or -1 (smaller)

This Calculation can be re-used if the Empty action is called before passing it to another column. Otherwise, it retains its data.

This action determines if two objects are equal based on their hash code values.

Example Code

use Libraries.Language.Object
        use Libraries.Language.Types.Text
        Object o
        Text t
        boolean result = o:Equals(t)

This Calculation can be re-used if the Empty action is called before passing it to another column. Otherwise, it retains its data.

This action gets the hash code for an object.

Example Code

Object o
        integer hash = o:GetHashCode()

This action returns the final result of the operation.

This action returns the final result of the operation.

If this action returns true, each element of the column will be sent to this calculation one by one. If this is false, the column should ask this class to conduct the calculation all at once using the Calculate action.