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calculate rows

gritsaygritsay Member, University Professor Posts: 12  University Professor
edited November 2018 in Help
Hello! What I can execute add or minus data from rows?

For example, source table:

name    | original series | smoothing series |
param1 |  12                |  13                   
param2 |  11                |  13
param3 |  22                |  21

Postprocessing table:

name    | original series | smoothing series |  sum  | minus|
param1 |  12                |  13                    | 25    |-1      | 
param2 |  11                |  13                    | 24    |-2      |
param3 |  22                |  21                    | 43    | 1      |

Which operator should I use ?

Answers

  • colocolo Member Posts: 236  Guru
    I would suggest the "Generate Attributes" operator. It allows the creation of new attributes while referencing existing attributes and using expressions (including some useful functions) is possible. If you have the attributes "att1" and "att2" you can create the new attributes sum (att1 + att2) and minus (att1 - att2) easily. You should not use blanks or special characters inside the attribute names to avoid problems here.

    Regards,
    Matthias
  • gritsaygritsay Member, University Professor Posts: 12  University Professor
    Thanks! It's very just. :)
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