Bronwen Cassell

There are several data types in R, the main ones being:

You know that some operations and analyses are possible and appropriate only with some specific types of data.

For example, it is not appropriate to compute the mean of a factor or character variable:

Likewise, although it is technically possible, it makes little sense to draw a barplot of a quantitative continuous variable because in most cases, the frequency will be 1 for each value:

(By the way, if your data is not already displayed in the form of a table, do not forget to add table() inside the barplot() function.)

1. Locate the file or folder that you want to zip
2. Press and hold (or right-click) the file or folder, select (or point to) Send to, and then select Compressed (zipped) folder A new zipped folder with the same name is created in the same location

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