R Markdown

This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com.

When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:

summary(cars)
##      speed           dist       
##  Min.   : 4.0   Min.   :  2.00  
##  1st Qu.:12.0   1st Qu.: 26.00  
##  Median :15.0   Median : 36.00  
##  Mean   :15.4   Mean   : 42.98  
##  3rd Qu.:19.0   3rd Qu.: 56.00  
##  Max.   :25.0   Max.   :120.00

Including Plots

You can also embed plots, for example:

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot. #TASK 1: READ IN FILE df <- read.csv(“MBA 561/ities.csv”) #TASK 2: DISPLAY THE COUNT OF ROWS AND COLUMNS IN THE DATAFRAME dim(df) #TASK 3: DISPLAY THE STRUCTURE OF THE DATAFRAME, df str(df) #Task 4: CHECK IF EVERY TRANSACTION IS SUMMARIZED IN ONE ROW OF THE DATAFRAME num_rows <- nrow(df) num_unique_transactions <- length(unique(df\(TransactionNumber)) c(num_rows, num_unique_transactions) #Task 5: DISPLAY THE SUMARIES OF THE PRICE, QUANTITY, AND TOTALDUE COLUMNS summary(df\)Price) summary(df\(Quantity) summary(df\)TotalDue) #TASK 6: DISPLAY THE BOXPLOTS OF THE LOG VALUES FOR THE PRICE, QUANTITY, and TOTALDUE COLUMNS boxplot(log(df\(Price), main="Log of Price", ylab="Log(Price)") boxplot(log(df\)Quantity), main=“Log of Quantity”, ylab=“Log(Quantity)”) boxplot(log(df$TotalDue), main=“Log of TotalDue”, ylab=“Log(TotalDue)”)