imat_result/minus

Purpose

Subtract results (r1-r2).

Syntax

r1+r2
r+x
x+r

Description

The following subtraction operations are possible with imat_result objects:

• Subtracting two imat_result objects causes their data values to be subtracted. If both operands are results, they must have the same dimensions. The data attributes of the result of a subtraction operation will be taken from the left operand.

• Adding a numeric array or scalar to an imat_result causes the numeric values to be subtracted from the data values of the imat_result. If the numeric array is not a scalar, it can either have the dimensions of the result or the dimensions of the Data attribute of the imat_result. If it has the same dimensions as the imat_result, the numeric value corresponding to that imat_result will be subtracted from all of the data values of that index in the imat_result.

Examples

>> r=imat_result(3);
>> r.data.data = reshape(1:18,6,3)

r =
3x1 IMAT_RESULT
Row  Name  DataLocation   ModelType  ResultType
---  ----  -------------  ---------  ------------
  1        Data at nodes  Unknown    User defined
  2        Data at nodes  Unknown    User defined
  3        Data at nodes  Unknown    User defined

>> s=r-r;  s.data.data

ans =
     0     0      0
     0     0      0
     0     0      0
     0     0      0
     0     0      0
     0     0      0

>> s=r01;  s.data.data

ans =
     0     6    12
     1     7    13
     2     8    14
     3     9    15
     4    10    16
     5    11    17

>> s=r-[1 10 100]';  s.data.data

ans =
     0    -3   -87
     1    -2   -86
     2    -1   -85
     3     0   -84
     4     1   -83
     5     2   -82

>> s=r-10*ones(6,3);  s.data.data

ans =
    -9    -3     3
    -8    -2     4
    -7    -1     5
    -6     0     6
    -5     1     7
    -4     2     8

>>

See Also

imat_result/plus