Example. In my build of R, the session is initialized in the root directory of my account, which I verify via getwd.I list the folders available in this directory using list.files, navigate to the January 2012 folder for code using setwd, and list the files in the new current working directory.Finally, I list the current files in the February 2012 folder by moving up a directory and specifying.
Read and write table data in R. The data used for statistical analysis is generally written in a tablular format and saved in one of the formats like excel sheet (.xls file extension), csv file (comma separated) or text file (tab or space separated). These files can be read into R as data frames using library functions.
Writing Excel Files. It is generally better to write a .csv file rather than an Excel file because the results can be used in a wider range of tools (including Excel) and will be cleaner (see below). However, to write an Excel file with the new data frame use the write.xlsx() function.
However, most programs written in R are essentially ephemeral, written for a single piece of data analysis. Next: R and statistics, Previous: The R environment, Up: Introduction and preliminaries ( Contents )( Index ).
The write operation takes a single parameter, which must be a string, and writes that string to the file. If you want to start a new line in the file, you must explicitly provide the newline character. First, we write the title to the file followed by the days of the week.
There are several commands which will direct output to a file instead of the screen. You must use the dev.off() command to tell R that you are finished plotting; otherwise your graph will not show up. PDF. PDF is a vector file format. Vector files are generally preferred for print output because the resulting output can be scaled to any size.
It doesn't need to surprise that R has implemented some ways to read, write and manipulate Excel files (and spreadsheets in general). This tutorial on reading and importing Excel files into R will give an overview of some of the options that exist to import Excel files and spreadsheets of different extensions to R.
To write a series of strings to a file Loop through the string collection. Use the WriteAllText method to write text to a file, specifying the target file and string to be added and setting append to True.