Here is the questions. I know there is supposed to be data but I am just wondering how to set this up in R Studio so the data to the Dalgleish et al. tree is not needed here.

 

Any help is appreciated, thanks!

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Please download the Dalgleish et al. tree data from the Brightspace and save it to your hard drive (the file is titled dalgleish_et_al_trees.csv). This dataset describes the species and diameter-at-beast-height (dbh, about 1.4 m above the ground, measured in cm) of 5681 individual trees at a site in Maine. It also contains age, reproductive data, and disease status for American chestnut (Castanea dentata) trees at this site, as well as map coordinates for each tree. We will use these data to practice working with large datasets and calculating summary statistics. 1. [Total: 9 points] Follow the steps below to build and present a frequency distribution for dbh in quaking aspen. a. *[1 point] After you read in the data, use the filter() and arrange() functions from the dplyr package to create a new data frame that contains only data for quaking aspen trees and has the rows arranged in order of increasing dbh (i.e., the first row has the smallest tree, the last has the largest). Tutorial 2 explains how to run these operations, but if you have difficulty, post a question on Brightspace Discussion Forums. Once you have sorted the data, report the last five values here. b. *[4 points] Use the 42 dbh values that you obtained in question la to build a frequency table (with 9 intervals) for dbh in quaking aspen at this site. Please begin your table at dbh 10 cm, use 4 cm bins, and include columns for both absolute and relative frequency. Please do not use R for this question. See the Guidelines for reporting statistical results on the Brightspace Cheat sheets tab for table formatting guidelines, and round decimals to 3 decimal places. Please download the Dalgleish et al. tree data from the Brightspace and save it to your hard drive (the file is titled dalgleish_et_al_trees.csv). This dataset describes the species and diameter-at-beast-height (dbh, about 1.4 m above the ground, measured in cm) of 5681 individual trees at a site in Maine. It also contains age, reproductive data, and disease status for American chestnut (Castanea dentata) trees at this site, as well as map coordinates for each tree. We will use these data to practice working with large datasets and calculating summary statistics. 1. [Total: 9 points] Follow the steps below to build and present a frequency distribution for dbh in quaking aspen. a. *[1 point] After you read in the data, use the filter() and arrange() functions from the dplyr package to create a new data frame that contains only data for quaking aspen trees and has the rows arranged in order of increasing dbh (i.e., the first row has the smallest tree, the last has the largest). Tutorial 2 explains how to run these operations, but if you have difficulty, post a question on Brightspace Discussion Forums. Once you have sorted the data, report the last five values here. b. *[4 points] Use the 42 dbh values that you obtained in question la to build a frequency table (with 9 intervals) for dbh in quaking aspen at this site. Please begin your table at dbh 10 cm, use 4 cm bins, and include columns for both absolute and relative frequency. Please do not use R for this question. See the Guidelines for reporting statistical results on the Brightspace Cheat sheets tab for table formatting guidelines, and round decimals to 3 decimal places.