Substring formula not workable
Dears:
i use below formula
substring('business_unit_code',6,3) or substring(business_unit_code,6,3)
want to pick up information from one string atttached.(I hope to get MCC or MSL)
but not workable. i have no idea what's wrong.
Thank you for the help.
Best Answer
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Manuel Alpha Tester, Dataiker Alumni, Dataiku DSS Core Designer, Dataiku DSS ML Practitioner, Dataiku DSS Core Concepts, Dataiku DSS Adv Designer, Registered Posts: 193 ✭✭✭✭✭✭✭OptionsHi,
My example is working well:
- The index starts at 0 and the to is excluded, thus substring("http",2,4) = "tp"
- In your example, I believe it needs to be substring(col,5,8);
- See the detail explanation of substring in this page, https://doc.dataiku.com/dss/latest/formula/index.html#array-functions
On the engine:
- In the recipe, below the run button, you have an icon with 3 cogs;
- Clicking on it enables you to select between the available engines in your instance.
- See this page for an explanation on the different engines, https://doc.dataiku.com/dss/latest/preparation/engines.html
I hope this helps.
Answers
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Manuel Alpha Tester, Dataiker Alumni, Dataiku DSS Core Designer, Dataiku DSS ML Practitioner, Dataiku DSS Core Concepts, Dataiku DSS Adv Designer, Registered Posts: 193 ✭✭✭✭✭✭✭Options
Hi,
substring(column name, index, size) works for me (see attached image). Perhaps try substring(strval("column name"),index,size).
Also, which engine are you using? If not using it already, test the DSS engine as well.
I hope this helps.
Best regards
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Dear Sir:
noted with thanks. how to test the engine and please share me the training information for it.
thank you very much.
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BTW, from your screenshot, the result should be "ttps" instead of "tp". if my understanding is correct?
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Dear：
Got it as the formula identification is different with excel's.
Noted with thanks.