Libraries.Compute.Statistics.Transforms.ReverseTransform Documentation
This action takes the data from the current DataFrame then reverses it so that the top row is now at the bottom and vice versa.
Example Code
use Libraries.Compute.Statistics.DataFrame
use Libraries.Compute.Statistics.Transforms.ReverseTransform
use Libraries.System.File
//Load a comma separated file
DataFrame frame
frame:Load("Data.csv")
//reverse the data frame
ReverseTransform reverse
frame:Transform(reverse)
Inherits from: Libraries.Language.Object, Libraries.Compute.Statistics.DataFrameTransform
Summary
Actions Summary Table
Actions | Description |
---|---|
Compare(Libraries.Language.Object object) | This action compares two object hash codes and returns an integer. |
CreatesCopy() | This action tells us whether or not this transform makes a copy of the data or modifies it in place. |
Equals(Libraries.Language.Object object) | This action determines if two objects are equal based on their hash code values. |
GetHashCode() | This action gets the hash code for an object. |
Transform(Libraries.Compute.Statistics.DataFrame frame) | This action takes the data from the current DataFrame then reverses it so that the top row is now at the bottom and vice versa. |
Actions Documentation
Compare(Libraries.Language.Object object)
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)
Parameters
- Libraries.Language.Object: The object to compare to.
Return
integer: The Compare result, Smaller, Equal, or Larger.
CreatesCopy()
This action tells us whether or not this transform makes a copy of the data or modifies it in place. Transforms that do not make a copy should override this action.
Example Code
use Libraries.Compute.Statistics.DataFrame
use Libraries.Compute.Statistics.Transforms.ReverseTransform
use Libraries.System.File
//Load a comma separated file
DataFrame frame
frame:Load("Data.csv")
//reverse the data frame
ReverseTransform reverse
output reverse:CreatesCopy() // by default, this transform returns true.
Return
boolean: True if this transform makes a copy.
Equals(Libraries.Language.Object object)
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)
Parameters
- Libraries.Language.Object: The to be compared.
Return
boolean: True if the hash codes are equal and false if they are not equal.
GetHashCode()
This action gets the hash code for an object.
Example Code
Object o
integer hash = o:GetHashCode()
Return
integer: The integer hash code of the object.
Transform(Libraries.Compute.Statistics.DataFrame frame)
This action takes the data from the current DataFrame then reverses it so that the top row is now at the bottom and vice versa.
Example Code
use Libraries.Compute.Statistics.DataFrame
use Libraries.Compute.Statistics.Transforms.ReverseTransform
use Libraries.System.File
//Load a comma separated file
DataFrame frame
frame:Load("Data.csv")
//reverse the data frame
ReverseTransform reverse
frame:Transform(reverse)
Parameters
- Libraries.Compute.Statistics.DataFrame: The DataFrame to copy and adjust
Return
Libraries.Compute.Statistics.DataFrame: Typically a copy of the DataFrame, transformed by the transformer.