+28I have some ordered features that contain a value, and I need to identify the inflection points, ie the feature where the sign (+/-) of the attribute value changes compared to the previous feature
ex. features have values [2,3,1,-2,-1,1,3] the inflection points would be features 3 and 5
For added entertainment there is another attribute containing a common ID, and I need to break on that value.
+17I will give it a try:
Create a new attribute ABS with conditional value (if value = @abs(value) then Y else N).
Then create the test between the current and the previous feature (ABS = ABS(feature(-1))
That should list the changes in the Failed port of the Tester.
+28I will give it a try:
Create a new attribute ABS with conditional value (if value = @abs(value) then Y else N).
Then create the test between the current and the previous feature (ABS = ABS(feature(-1))
That should list the changes in the Failed port of the Tester.
But I'm not sure how to prevent the first feature from one group checking against the last feature of the previous group.
+17
But I'm not sure how to prevent the first feature from one group checking against the last feature of the previous group.
And group = group(feauture(-1))
+17
But I'm not sure how to prevent the first feature from one group checking against the last feature of the previous group.
Or group != group(feature(-1))
That will pass the first in each group.
+33Might need tweaking to handle first and last features but you probably want a conditional statement with a composite test
e.g.
Hi @jdh, if I understood the requirement correctly, this should work as expected.
[Addition] Assume that 0 won't occur in the values sequence.
Hi @jdh, if I understood the requirement correctly, this should work as expected.
[Addition] Assume that 0 won't occur in the values sequence.
@Evaluate((@Value(feature[-1].value)==0 ? 1 : @Value(feature[-1].value)) * (@Value(value)==0 ? 1 : @Value(value))) < 0
@Evaluate((@Value(feature[-1].value)==0 ? 1 : @Value(feature[-1].value)) * (@Value(value)==0 ? 1 : @Value(value))) < 0
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