Assignment #1 Getting Started with R Programming

In your blog, write a 2–3 paragraph report describing:

    • Any issues you encountered during installation.
    • How you resolved them (if applicable).
    • Your system details (OS version, R version, RStudio version).

I had no issues with installation of R or R Studio. I have now taken two other classes instructed by you, so thankfully I already had both applications downloaded all I needed to do was update R. My R Studio verison is 4.4.1, but my R is version 4.5.1


The simplest data structure in R is called a vector, which holds a series of components of the same type, including logical, character, or numeric values. Since most operations in R are made to work directly on vectors, they are essential to data analysis since they allow for effective calculations across whole datasets without the need to write complex loops. They are crucial to R's speed, flexibility, and power in data analysis since they serve as the building blocks for more complex structures like matrices, data frames, and lists. They also enable analysts to apply functions element-wise, carry out statistical calculations, and manipulate data at scale.





Comments

Post a Comment

Popular posts from this blog

Module #4 Visualizing and Interpreting Hospital Patient Data

Image
Github Repository:   r-programming-assignments/Assignment_04.R at main · AustinTCurtis/r-programming-assignments CODE FROM R Studio: > # Define numeric vectors > Frequency <- c(0.6, 0.3, 0.4, 0.4, 0.2, 0.6, 0.3, 0.4, 0.9, 0.2) > BloodPressure <- c(103, 87, 32, 42, 59, 109, 78, 205, 135, 176) > > # Convert categorical strings to numeric codes > # First assessment: bad=1, good=0 > FirstAssess <- c(1, 1, 1, 1, 0, 0, 0, 0, NA, 1) > > # Second assessment: low=0, high=1 > SecondAssess <- c(0, 0, 1, 1, 0, 0, 1, 1, 1, 1) > > # Final decision: low=0, high=1 > FinalDecision <- c(0, 1, 0, 1, 0, 1, 0, 1, 1, 1) > > # Create data frame > df_hosp <- data.frame( + Frequency, BloodPressure, FirstAssess, + SecondAssess, FinalDecision, + stringsAsFactors = FALSE + ) > > # Inspect data > summary(df_hosp) Frequency BloodPressure FirstAssess SecondAssess FinalDecision Min. :0.20 Min. : 32.0...
Read more

Module # 2 Assignment Importing Data and Function Evaluation in R

Image
  Evaluate  myMean  Function Use the vector: assignment2 <- c(16, 18, 14, 22, 27, 17, 19, 17, 17, 22, 20, 22) Consider this function: myMean <- function(assignment2) { return(sum(assignment) / length(someData)) } In RStudio, run  myMean(assignment2)  and record the output or error. After running the code in R Studio this is the error that occurred: > assignment2 <- c(16, 18, 14, 22, 27, 17, 19, 17, 17, 22, 20, 22) > myMean <- function(assignment2) { + return(sum(assignment) / length(someData)) + } > assignment2 <- c(16, 18, 14, 22, 27, 17, 19, 17, 17, 22, 20, 22) > myMean <- function(assignment2) { + return(sum(assignment) / length(someData)) + } > myMean(assignment2) Show Traceback Rerun with Debug Error in myMean(assignment2) : object 'assignment' not found The function fails because of inconsistent variable names : You pass in "assignment2", but inside the function you try to use "assignment" and "someData...
Read more

Module 6: Matrix Operations and Construction

GitHub Repository:  r-programming-assignments/Assignment_06.R at main · AustinTCurtis/r-programming-assignments Part I — Matrix Addition & Subtraction In this section, I’m creating two matrices A and Busing the matrix() function. Both matrices have 2 columns. After defining them, I perform matrix addition (A+B)  and matrix subtraction (A-B)  These operations are performed elementwise, meaning R adds or subtracts each corresponding element from the same position in both matrices. R Code: # Define two 2x2 matrices A and B A <- matrix(c(2, 0, 1, 3), ncol = 2) B <- matrix(c(5, 2, 4, -1), ncol = 2) # Display A and B A B # Matrix addition A_plus_B <- A + B A_plus_B # Matrix subtraction A_minus_B <- A - B A_minus_B Part II — Creating a Diagonal Matrix Here, I use the diag() function to create a 4×4 diagonal matrix called D. A diagonal matrix has non-zero values only along its main diagonal (from top left to bottom right), with zeros everywhere else. I specify th...
Read more