Tool Mastery
Explore a diverse compilation of articles that take an in-depth look at Designer tools.Tool Mastery | Sample
The Sample Tool allows you selectively pass patterns, block excerpts, or samples of your records (or groups of records) in your dataset: the first N, last N, skipping the first N, 1 of every N, random 1 in N chance for each record to pass, and first N%. Using these options can come in the clutch pretty often in data preparation – that’s why you’ll find it in our Favorites Category, and for good reason. While a great tool to sample your data sets, you can also use it for:
- Flexible parsing (attached in the workflow Sample.yxzp)
Input formats like the above are especially common with transactional data stores.
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Stripping (often Excel) formatting from input tables (attached in the workflow Sample.yxzp)
See here for a more detailed walkthrough on how to input data that doesn't start in the first row.
- Quick appending min/max or chronological first/last in date types (attached in the workflow Sample.yxzp)
This can also be done with groups of records by using the “Grouping Fields” selection in the Sample Tool’s configuration. The technique itself is also possible, and with multiple fields at a time, using the Summarize Tool.
With use cases like the above, the Sample Tool is easily 1 of every N=1,000,000!
By now, you should have expert-level proficiency with the Sample Tool! If you can think of a use case we left out, feel free to use the comments section below! Consider yourself a Tool Master already? Let us know at community@alteryx.com if you’d like your creative tool uses to be featured in the Tool Mastery Series.
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Hi Everyone,
I've just attempted to use the sample tool for returning the last (1) row from an Excel (xlsx) file by selecting the "Last N rows" option and setting N = 1.
Still it does return all the rows in the file. Can anyone tell why it happens, and more importantly how - if at all - can this tool be used to return indeed just the last single row?
This is where the link takes you when clicked http://sample%20tool%20mastery/
