Exam (elaborations)
ALTERYX EXAM Q&A
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Exam of 5 pages for the course Alteryx at Alteryx (ALTERYX EXAM Q&A)
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ALTERYX EXAM Q&ADirectory Tool - Answer-- Used to obtain Meta data
- Basic meta data about these files
- transactions*.xlsx
- Only excel files with transactions and excel
- Locating the most recent file
Date Time Now Tool - Answer-- Matches your local machines date and time
Browse Tool - Answer-- View data, maps and reports
- Use the tool for data profiling
- Previews the data
- Previews different data groups with large sums of data
- Use brows for figuring out what to look into
Select Tool - Answer-- Usually what you use first
- Configuration pane will be able to uncheck data and fields
- Selects only specific data baed on groups within the data
- Unknown check box accepts any data that is added later to the data file
- You can also change data types
- You can also rename fields with the select tool
- You can move rows around in the data field as well
Data Cleansing Tool - Answer-- Cleanup data quality issues
- Replacement with N/a and 0
- Remove unwanted characters
Date Filter Tool - Answer-- Date range
- All data before x
- All data after y
- Need to use select tool sometime to change the data type from a string to a date
Filter Tool - Answer-- Basic filter
- City = Chicago
- You can build off of true or false branches
- T or F
- Custom filter
- Use functions tab
- Many tabs
Formula Tool - Answer-- Custom expressions
- Can either override or create new column
- Select data type
- Lists contain variables and functions
, - Evaluates the data on a row by row basis
Multi Field Formula Tool - Answer-- apply same formula
- 12 new columns with the same formula
Multi Row Formula Tool - Answer-- Running sum across all rows
Sort Tool - Answer-- Name
- What you are sorting by
- Order
- Ascending, descending
Record ID tool - Answer-- Records the ID of the original data
- Starts at 1 and everything
- Sort by record iD to get original sequence of data
Unique Tool - Answer-- Define unique rows
- Based on one or more dimensions
- Gets rid of repeats
Sampling - Answer-- First N records
- Last N records
- Skip 1st N records
- 1 of every N records
- Random 1 in N chance for each record
- First N% of records
- Grouping
- First samples of every specific group
Random % Sample - Answer-- Random N Records
- Randon N% records
- Choose a random sample of your records
Auto Field Tool - Answer-- Automatically detect the optimal data type and size
- Changes metadata to what they should be numbers, string, dates as well as sizes
Imputation Tool - Answer-- Replace Null or specific numeric values with
- Average of the data set
- Median of the data set
- Specific value
- Mode of the data set
Tile Tool - Answer-- Group data into sets based on a numeric field in your data
- Clustering analysis
- Equal sum
- Randomly forms tiles and the total is the same
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