ps44

pdf

School

University of California, Berkeley *

*We aren’t endorsed by this school

Course

20

Subject

Statistics

Date

Feb 20, 2024

Type

pdf

Pages

2

Uploaded by BaronPencilButterfly12

Report
Stat 20 PS: Data Pipelines The following practice problems all deal with a data set that’s near and dear to our hearts, the Palmer penguins dataset. Like always, make sure you start your analysis by loading in the necessary packages and data sets. 1. For each question, write R code and copy the code used in the space provided. Unless otherwise specified, your answer to each question should consist of one dplyr data pipeline!! 2. For the questions below that ask you to extract a subset of the data (marked with an asterisk) , check your answer by using the new data frame you make to modify the plot made using the code provided below. ggplot ( data = penguins, mapping = aes ( x = bill_length_mm, y = bill_depth_mm, color = species)) + geom_point () + lims ( x = c ( 30 , 60 ), y = c ( 12 , 23 )) Questions 1-3 Question 1* Extract a data frame that excludes the Adelie penguins in two different ways: • One without using a data pipeline; • One with using a data pipeline. Question 2* Extract a data frame that excludes the Adelie penguins and retains penguins with bill lengths between 40 and 50 mm. Question 3 Sort the data frame from Question 2 in decreasing order by bill length.
Questions 4-6 Question 4 Calculate the mean bill length and bill depth for each of the three species of penguins . Do those statistics line up with what you see in the penguins plot provided by the (original) code given? Question 5 Consider a new metric called bill_size that’s the sum of the length and depth. What is the average bill size and it’s standard deviation among each species, broken out among each of the island? You may end up with potentially nine pairs of statistics. Sort your resulting data structure in decreasing order by average bill size. Question 6 What are the total number of penguins in the data set belonging to each species-island combination? Why may have you not gotten nine pairs of statistics in the last question? Question 7 What is the proportion of penguins for each species having a body mass greater than 4000 grams? Hint: use a logical variable!
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help

Related Documents

Ch1ClassTemplate.xlsx
Gen 201 wk4 w.docx
Activity8-ErrorsAndPower-AnswerSheet (1).pdf
Activity6-Chi-SquareTests_AnswerSheet (1).pdf
ps33.pdf
ps55.pdf
HW2 Fall 2023.xlsx
Excel HW 3 Fall 2023 (2).xlsx
ME_Unknown_Date_2.pdf
Stat 205 HW6.docx
MTH154Project2Soccer-1.xlsx
Homework 1 Spring 2024.docx
Recommended textbooks for you
Text book image
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Text book image
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
Text book image
Algebra: Structure And Method, Book 1
Algebra
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:McDougal Littell
Text book image
Elementary Geometry for College Students
Geometry
ISBN:9781285195698
Author:Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:Cengage Learning
Text book image
Mathematics For Machine Technology
Advanced Math
ISBN:9781337798310
Author:Peterson, John.
Publisher:Cengage Learning,
SEE MORE TEXTBOOKS
Recommended textbooks for you
Text book image
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Text book image
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
Text book image
Algebra: Structure And Method, Book 1
Algebra
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:McDougal Littell
Text book image
Elementary Geometry for College Students
Geometry
ISBN:9781285195698
Author:Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:Cengage Learning
Text book image
Mathematics For Machine Technology
Advanced Math
ISBN:9781337798310
Author:Peterson, John.
Publisher:Cengage Learning,
SEE MORE TEXTBOOKS