R read data from csv files

Reading data from csv files is very useful as csv file is a standard output of many programs. In R, you can read csv file in one line:

df <- read.csv("/path/to/file.txt", row.names=1,head=FALSE, sep=",")

The code above specifies the first column is just a name by using row.names=1. By using head=FALSE, it says there is no head of the data, i.e., all rows are data. We can also specify what to use to separate each line. In this case, we use ",".

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