I'm creating strings from feature with the StringConcatenator. Now I would like to group the feature-strings by an attribute with the Sampler. How can I add in front of each feature-group an additional string with the group attribute?
Solved
Name grouped feature-strings
Best answer by takashi
Hi @nindalf, if I understood the requirement correctly, this workflow could be a solution.
[Edited]
Source (CSV)
Feature,Attribute
1,A
10,B
2,A
9,B
3,A
8,B
4,A
7,B
5,A
6,B
Result (Text)
Group A
Feature 1 Attribute:A
Feature 2 Attribute:A
Feature 3 Attribute:A
Feature 4 Attribute:A
Feature 5 Attribute:A
Group B
Feature 6 Attribute:B
Feature 7 Attribute:B
Feature 8 Attribute:B
Feature 9 Attribute:B
Feature 10 Attribute:B
- Is "'Feature 1 Attribute:A" a single concatenated string?
- What result do you need to get after sampling?
takashi wrote:
- Is "'Feature 1 Attribute:A" a single concatenated string?
- What result do you need to get after sampling?
Change the question. Originally (i.e. before string concatenation), what attributes did the features have?
I'm guessing as below.
The original features have two attributes called "Feature" and "Attribute" - "Feature" can store sequential number 1, 2, 3, ..; "Attribute" can store a group name: "A" or "B".
The requirement is:
- sort the features by group name and number
- concatenate the attribute values to create a single string "Feature <number> Attribute:<group name>"
- insert new features containing a string "Group <group name>" before every first feature for each group
- finally write the strings into a text file
If I was wrong, please clarify the conditions and requirements.
takashi wrote:
I'm guessing as below.
The original features have two attributes called "Feature" and "Attribute" - "Feature" can store sequential number 1, 2, 3, ..; "Attribute" can store a group name: "A" or "B".
The requirement is:
- sort the features by group name and number
- concatenate the attribute values to create a single string "Feature <number> Attribute:<group name>"
- insert new features containing a string "Group <group name>" before every first feature for each group
- finally write the strings into a text file
If I was wrong, please clarify the conditions and requirements.
This sounds right!
- Best Answer
Hi @nindalf, if I understood the requirement correctly, this workflow could be a solution.
[Edited]
Source (CSV)
Feature,Attribute
1,A
10,B
2,A
9,B
3,A
8,B
4,A
7,B
5,A
6,B
Result (Text)
Group A
Feature 1 Attribute:A
Feature 2 Attribute:A
Feature 3 Attribute:A
Feature 4 Attribute:A
Feature 5 Attribute:A
Group B
Feature 6 Attribute:B
Feature 7 Attribute:B
Feature 8 Attribute:B
Feature 9 Attribute:B
Feature 10 Attribute:B
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