.. index::
   single: G7 Command; scale
   single: Scaling
   single: Proportional scaling
   single: Control Totals

The Scale Command
=================
	
The *scale* command uses proportional scaling (or optionally, right-direction scaling) to control a vector, or part of a vector, or a row or column of a matrix to a given control total.  The command is:

| **scale <control> <vectorname> [(<group>)] [<year>] [rdscale]**
| **scale <control> <matrixname> <r rnum> [(<colgroup>)] [year] [rdscale]**
| **scale <control> <matrixname> <c cnum> [(<rowgroup>)] [year] [rdscale]**
|    The <control> may be a series from any bank (e.g. a.ctrl), or from any vector (e.g. b.vec2), or from any matrix (e.g. c.mat1.1) that contains the values to which the vector is to be scaled.

:vectorname: A vector whose elements are to be scaled.  
:group: Optionally specifies which elements of the vector are to be scaled.
:year: Specifies a single year for which the elements of the vector are to be scaled.  If year is not specified, the control is imposed over each period covered by the current *fdates*.  :"rdscale": Specifies that right direction scaling is to be used.
:matrixname: The name of a matrix with a rows or columns that is to be scaled. 
:r rnum:
:c cnum: Specifies that a row or column is to be scaled and provides the number of the row or column.  
:colgroup: 
:rowgroup: Optionally specifies which elements of the column or row are to be scaled.

To scale a group of time series that have a common root name (such as exp1, exp2, ..., expn), us the *ctrl* command.