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05 Data Visualization

05 Data Visualization
Exercise: Data Explorer1) Read the adult.csv file by executing the CSV Reader node2) Inspect the properties of the data with the Data Explorer node- How many different native countries are represented in the data? 39 countries. 3) In the interactive view, exclude the nominal columns that contain missing values- Which of the nominal columns contain missing values? How many missing values each?native-country contains 583 missing values, occupation contains 1842 missing values, andworkclass contains 1835 missing valuesNote! The Data Explorer node is part of the KNIME JavaScript Views (Labs) Extension Exercise: Scatter Plot and Composite View1) Read the adult_w_commute.table file by executing the Table Reader node2) Assign colors to the rows based on the marital status3) Draw a scatter plot of hours per week vs. commute time- Do you observe any particular relationship between these two columns? A slight positivecorrelation is observed- What can you say about the marital status of people who work <25 hours per week andcommute the most? People who work <25 hours a week and commute the longest are oftennever married4) Create an interactive table that displays the data. Use the Table View node.5) Encapsulate the Scatter Plot and Table View nodes into a component. Open thecomponent's interactive view.6) Switch to the mouse mode "Select" in the scatter plot view and select the data points with<25 working hours and >120 min commuting time7) Show only selected rows in the interactive table- What is the native country of the selected data points? United States Read adult.csvRead adult_w_commute.tableNode 32Node 33 CSV Reader Table Reader Data Explorer Color Manager Component Exercise: Data Explorer1) Read the adult.csv file by executing the CSV Reader node2) Inspect the properties of the data with the Data Explorer node- How many different native countries are represented in the data? 39 countries. 3) In the interactive view, exclude the nominal columns that contain missing values- Which of the nominal columns contain missing values? How many missing values each?native-country contains 583 missing values, occupation contains 1842 missing values, andworkclass contains 1835 missing valuesNote! The Data Explorer node is part of the KNIME JavaScript Views (Labs) Extension Exercise: Scatter Plot and Composite View1) Read the adult_w_commute.table file by executing the Table Reader node2) Assign colors to the rows based on the marital status3) Draw a scatter plot of hours per week vs. commute time- Do you observe any particular relationship between these two columns? A slight positivecorrelation is observed- What can you say about the marital status of people who work <25 hours per week andcommute the most? People who work <25 hours a week and commute the longest are oftennever married4) Create an interactive table that displays the data. Use the Table View node.5) Encapsulate the Scatter Plot and Table View nodes into a component. Open thecomponent's interactive view.6) Switch to the mouse mode "Select" in the scatter plot view and select the data points with<25 working hours and >120 min commuting time7) Show only selected rows in the interactive table- What is the native country of the selected data points? United States Read adult.csvRead adult_w_commute.tableNode 32Node 33CSV Reader Table Reader Data Explorer Color Manager Component

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Created by: Maarit Laukkanen
Created at: 2020-04-20
On NodePit since: 2022-02-26
Last update: 2024-11-21
Created with KNIME version: v4.5.1
Tags: data explorerinteractive viewcomposite viewscatter plotdashboardtable view

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