Assess the validity of file paths

Exercise Type: Prediction

Instructions

Getting to know paths can be daunting at first - but they really important and with experience they become extremely straightfoward to use.

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Exercise 1

We want to read in a file that is present on our hard drive here (theoretically):

C:\Users\Adam\Downloads\example_file.rds

Which of the following five entries are right for reading this file in? There is more than one good solution!

Solution A

dat <- readRDS("C:\Users\Adam\Downloads\example_file.rds")

Solution B

setwd("C:/Users/Adam/Downloads")
dat <- readRDS("example_file.rds")

Solution C

dat <- readRDS("c:/users/adam/downloads/example_file.rds")

Solution D

dat <- readRDS("example_file.rds")

Solution E

setwd("C:/Users/Adam")
dat <- readRDS("Downloads/example_file.rds")

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Exercise 2

We want to read in a file that is present on our hard drive here (theoretically):

D:\FAU\reefs\data\Harnik2011_data.csv

Solution A

setwd("D:/FAU/reefs")
tab <- read.csv("data/Harnik2011_data")

Solution B

setwd("D:/FAU/reefs")
tab <- read.csv("data/Harnik2011_data.csv")

Solution C

tab <- read.csv(D:/FAU/reefs/data/Harnik2011_data.csv)

Solution D

setwd("D:/FAU/reefs")
tab <- read.csv("data\Harnik2011_data.csv")

Solution E

setwd("D:/FAU")
tab <- read.csv(paste(getwd(), "data/Harnik2011_data.csv", sep="/"))