Exercise on comparison visualization tools

This exercise contains comparison visualization techniques – histogram and bar chart

Steps:
Read the excel file iris.xlsx file, available in data/
Visualize a chart with number of observations
Illustrate number of observations of different Iris flavor characteristics in separate histograms
Visualize average of each feature for each Iris class
depict an average of different Iris characteristics for each class in horizontal view.
Assign colors to each characteristics
Visualize sepal length in 2 categories
Depict how many observations (rows) has sepal length long / short (long = above mean, short = bellow mean)

External resources

• hub.knime.com/barbora/spaces/Courses/latest/