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#!N
#!N #!Rcomput2
Compute2 #!N #!N Category #!N #!N #!Lcattrn,dxall763 h Transformation #!EL #!N #!N Function #!N
#!N Evaluates an expression on each data point in a specified
field or value list. #!N #!N Syntax #!CForestGreen #!N #!N #!F-adobe-courier-bold-r-normal--18*
#!F-adobe-times-bold-r-normal--18* #!N output #!EF = Compute2( #!F-adobe-times-bold-r-normal--18* expression, name, input, ...
#!EF ); #!EF #!N #!N #!EC #!N #!N Inputs #!T,1,91,276,461,646 #!F-adobe-times-medium-r-normal--14*
#!F-adobe-times-bold-r-normal--18* #!N TAB Name TAB Type TAB Default TAB Description #!EF
#!N TAB expression TAB string TAB none TAB expression(s) to be
computed #!N TAB name TAB string TAB no default TAB name
of input that follows #!N TAB - TAB - TAB -
TAB (defaults to "a") #!N TAB input TAB field or value
list TAB no default TAB input value #!N TAB name1 TAB
string TAB no default TAB name of input that follows #!N
TAB - TAB - TAB - TAB (defaults to "b") #!N
TAB input1 TAB field or value list TAB no default TAB
input value #!N TAB ... TAB ... TAB ... TAB ...
#!N TAB - TAB - TAB - TAB #!EF #!N #!N
Outputs #!T,1,161,321,646 #!F-adobe-times-medium-r-normal--14* #!F-adobe-times-bold-r-normal--18* #!N TAB Name TAB Type TAB Description
#!EF #!N TAB output TAB field, value, or value list TAB
output values #!N TAB - TAB - TAB #!EF #!N #!N
Functional Details #!N #!N The primary advantage of this alternative form
of Compute is that, in the user interface, #!F-adobe-times-bold-r-normal--18* expression #!EF
is an input that can be provided by another tool (e.g.,
a selector interactor). All the functions of Compute (see #!Lcompute,dxall795 h Compute #!EL )
are also functions of Compute2. #!N #!I0 #!N #!N #!I0 #!N
#!F-adobe-times-bold-r-normal--18* #!F-adobe-times-bold-r-normal--18* expression #!EF #!EF #!I50 #!N is a mathematical expression
to be evaluated for a set of #!F-adobe-times-bold-r-normal--18* input #!EF values.
#!Loper14,dxall795 t Table 14 #!EL lists the operators. #!N #!N This parameter is followed by
one or more name-input pairs. #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* #!F-adobe-times-bold-r-normal--18* name
#!EF #!EF #!I50 #!N is name of the variable in the
expression to be evaluated. #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* #!F-adobe-times-bold-r-normal--18* input #!EF
#!EF #!I50 #!N is the input to which #!F-adobe-times-bold-r-normal--18* expression #!EF
is applied. If there are more than one, the input fields
must be isomorphic (i.e., their hierarchies must match exactly). #!I0 #!N
#!N #!N #!N A single Compute2 module can operate on a
maximum of 21 #!F-adobe-times-bold-r-normal--18* input #!EF values. The default number of
enabled input tabs is two. (Tabs can be added to the
module icon and removed with the appropriate #!F-adobe-times-bold-r-normal--18* Input/Output Tabs #!EF
options in the #!F-adobe-times-bold-r-normal--18* Edit #!EF pull-down menu of the VPE.)
#!N #!N Example Visual Programs #!N #!N #!CForestGreen #!N #!F-adobe-courier-bold-r-normal--18* #!N
ComputeMultiLine.net #!N SIMPLE/Compute2.net #!EF #!N #!N #!EC #!N #!N See Also
#!N #!N #!Lcompute,dxall795 h Compute #!EL #!N #!N #!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF #!N
#!N #!Lconnect,dxall797 h Connect #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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