Using R Langauge

7. Load the Beginning.RData file and perform the following tasks. Save the commands in a history file called question7.txt. a. Object invert is a data frame. Using cross tabulation create a contingency table that shows the relationship between Taxa and Habitat. Save the resulting table as a new object. b. Use the data from the table to create the following stacked barplot. Hints: The actual plot is easier than you might think. Pay attention to the details. Full marks for making the legend appear and for putting it in a better spot as shown below (I used args.legend): Upper Lower Stem Ant Spider Beetle Bug Aphid Location of Insects Habitat Individuals Observed 0 100 200 300 400

R version 3.4.3 (2017-11-30) -- "Kite-Eating Tree" Copyright (C) 2017 The R Foundation for Statistical Computing Platform: x86_64-w64-mingw32/x64 (64-bit)

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[Previously saved workspace restored]