How to get a .csv file into R?

Question

I have this .csv file:

ID,GRADES,GPA,Teacher,State

3,"C",2,"Teacher3","MA"

1,"A",4,"Teacher1","California"

And what I want to do is read in the file using the R statistical software and read in the Header into some kind of list or array (I'm new to R and have been looking for how to do this, but so far have had no luck).

Here's some pseudocode of what I want to do:

inputfile=read.csv("C:/somedirectory")

for eachitem in row1:{

add eachitem to list
}

Then I want to be able to use those names to call on each vertical column so that I can perform calculations.

I've been scouring over google for an hour, trying to find out how to this but there is not much out there on dealing with headers specifically.

Thanks for your help!

question from:https://stackoverflow.com/questions/3391880/how-to-get-a-csv-file-into-r

Answer 1

You mention that you will call on each vertical column so that you can perform calculations. I assume that you just want to examine each single variable. This can be done through the following.

df <- read.csv("myRandomFile.csv", header=TRUE)

df$ID

df$GRADES

df$GPA

Might be helpful just to assign the data to a variable.

var3 <- df$GPA