Object Reference : Object View and Procedure Reference : Link
  
 
clearhist
Clear the contents of the history attribute.
Removes the rowvector’s history attribute, as shown in the label view of the rowvector.
Syntax
rowvector_name.clearhist
Examples
r1.clearhist
r1.label
The first line removes the history from the rowvector R1, and the second line displays the label view of R1, including the now blank history field.
Cross-references
See “Labeling Objects” for a discussion of labels and display names.
See also Link::label.