Icon

03 Row and Column Filtering

03 Row and Column Filtering - Solution

Solution to an exercise for filtering rows and columns.

CHECK YOUR ANSWERS:
Out of the adults in the data
a. 4441 are divorced
b. 10680 are never married
c. 7908 are never married and between 20 and 40 years old
d. 4953 are with work class State-gov, Self-emp-not-inc, or Self-emp-inc










Exercise: Row Filtering1) Read the adult.csv file by executing the CSV Reader node2) Filter out rows where the marital status is missing3) Extract rows where - the marital status is divorced- the marital status is never married and age is between 20 and 40 (both included)- the workclass starts with "S"5) How many adults are- divorced?- never married?- never married and between 20 and 40 years old?- with work class State-gov, Self-emp-not-inc, or Self-emp-inc? Exercise: Column Filtering1) Read the adult_education.table file by executing the Table Reader node2) Exclude the "education-num" column- manually- by including only string type columns Filter out rows where the marital status is missing DivorcedWorkclass starts with "S"Never-marriedNever married and ageis between 20 and 40Exclude education-nummanuallyExclude education-numby type selectionadult.csvRead adult_education.tableRow Filter Row Filter Row Filter Row Filter Row Filter Column Filter Column Filter CSV Reader Table Reader Exercise: Row Filtering1) Read the adult.csv file by executing the CSV Reader node2) Filter out rows where the marital status is missing3) Extract rows where - the marital status is divorced- the marital status is never married and age is between 20 and 40 (both included)- the workclass starts with "S"5) How many adults are- divorced?- never married?- never married and between 20 and 40 years old?- with work class State-gov, Self-emp-not-inc, or Self-emp-inc? Exercise: Column Filtering1) Read the adult_education.table file by executing the Table Reader node2) Exclude the "education-num" column- manually- by including only string type columns Filter out rows where the marital status is missing DivorcedWorkclass starts with "S"Never-marriedNever married and ageis between 20 and 40Exclude education-nummanuallyExclude education-numby type selectionadult.csvRead adult_education.tableRow Filter Row Filter Row Filter Row Filter Row Filter Column Filter Column Filter CSV Reader Table Reader

Nodes

Extensions

Links

Download

To use this workflow in KNIME, download it from the below URL and open it in KNIME:

Download Workflow
Created by: Maarit Laukkanen
Created at: 2020-04-20
On NodePit since: 2023-02-26
Last update: 2024-05-05
Created with KNIME version: v4.7.0
Tags: row filtercolumn filter

Deploy, schedule, execute, and monitor your KNIME workflows locally, in the cloud or on-premises – with our brand new NodePit Runner.

Try NodePit Runner!