If you don't know R, or are coming back at R after a long break, the following FAQ may be a good refresh.
Is R case-sensitive?
Yes, most certainly - R is case-sensitive. However, many functions are lower case.
Example of lower case functions include getwd() and setwd("putDirectoryNameHere").
Is R interpreted or compiled?
R is an interpreted language.
How do I create a data vector in R?
Creating a data vector is one of the most fundamental operations in R. You do so using the c() function, and assignment operator. For example, creating a data vector of the numbers 1, 2, 3, 4 and 5 can be done using:
myVector < – c( 1, 2, 3, 4, 5)
How do I calculate correlation given two data vectors a and b?
cor(a, b)
How do I import an R script into the current session?
Use the source function. Example: source("myScript.R").
How do I specify pathnames in R?
Use forward slash instead of backslash for path names. Backslash is used to specify escape characters.
Can I run R "unattended"?
Yes, there is a batch mode in R, using the arguments CMD BATCH.
Is R case-sensitive?
Yes, most certainly - R is case-sensitive. However, many functions are lower case.
Example of lower case functions include getwd() and setwd("putDirectoryNameHere").
Is R interpreted or compiled?
R is an interpreted language.
How do I create a data vector in R?
Creating a data vector is one of the most fundamental operations in R. You do so using the c() function, and assignment operator. For example, creating a data vector of the numbers 1, 2, 3, 4 and 5 can be done using:
myVector < – c( 1, 2, 3, 4, 5)
How do I calculate correlation given two data vectors a and b?
cor(a, b)
How do I import an R script into the current session?
Use the source function. Example: source("myScript.R").
How do I specify pathnames in R?
Use forward slash instead of backslash for path names. Backslash is used to specify escape characters.
Can I run R "unattended"?
Yes, there is a batch mode in R, using the arguments CMD BATCH.
