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Question

Create attribute columns based on attribute row values

  • February 19, 2014
  • 3 replies
  • 206 views
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I have this type of data set with a number of observations with values of town, type and number - and a possibility of observing more of the same type in the same town.

 

 

Town; Type; Number

 

Town 1; Type A; 4

 

Town 1; Type A; 2

 

Town 1; Type B; 6

 

Town 2; Type A; 7

 

Town 2; Type B; 11

 

Town 3; Type C; 21

 

Town 3; Type A; 32

 

Town 3; Type B; 3

 

Town 3; Type B; 4

 

 

etc.

 

 

How would I get my source data set to look like this? Town; Type A; Type B; Type C; Sum Town 1; 6; 6; 0; 12

 

Town 2; 7; 11; 21; 39

 

Town 3; 32; 7; 0; 39

 

 

I have tried using the new AttributePivot on Town and Type, but it would give me this result really.

 

 

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    3 replies

    takashi
    Celebrity
    • takashiCelebrity
    • February 19, 2014
    Hi,

     

     

    The BulkAttributeRenamer can be used effectively.

     

    1) BulkAttributeRenamer

     

    Rename: Selected Attributes

     

    Seleted Attributes: Number

     

    Action: Regular Expression Replace

     

    Text To Fine: .*

     

    String: Type  (Attribute Value)

     

     

    2) AttributeExposer

     

    Attributes to Expose: Type A, Type B, Type C

     

     

    3) Aggregator

     

    Group By: Town

     

    Mode: Attributes Only

     

    Keep Input Attributes: No

     

    Attributes to Sum: Type A, Type B, Type C

     

     

    4) AttributeCreator

     

    Sum = @Value(Type A)+@Value(Type B)+@Value(Type c)

     

     

    Takashi
    Why not inspect features with Visual/Data Preview and Feature/Record Information before writing them into a destination dataset?
    takashi
    Celebrity
    • takashiCelebrity
    • February 21, 2014
    I found that attribute value can be specified as new attribute name in the AttributeCreator of FME 2014. If you are using FME 2014, can use the new functionality.

     

     

    1) AttributeCreator

     

    @Value(Type) = Number  (Set value of "Type" to new attribute name)

     

    Sum = Number

     

     

    2) AttributeExposer

     

    Attributes to Expose: Type A, Type B, Type C

     

     

    3) Aggregator

     

    Group By: Town

     

    Mode: Attributes Only

     

    Keep Input Attributes: No

     

    Attributes to Sum: Sum, Type A, Type B, Type C
    Why not inspect features with Visual/Data Preview and Feature/Record Information before writing them into a destination dataset?
    takashi
    Celebrity
    • takashiCelebrity
    • February 21, 2014
    Sorry, that's not new. FME 2012, 2013 also can do that. You can type "@Value(Type)" directly in Attribute Name column of the AttributeCreator.
    Why not inspect features with Visual/Data Preview and Feature/Record Information before writing them into a destination dataset?

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