How to create factors in R language

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In R, there is a special data structure called factor, which is different from other programming languages. The main purpose of this data structure is to classify, calculate frequency and frequency. And in drawing, we take the same data, convert it into factors, and put that data into the function that draws the image, and the image becomes more readable.

Create Factor

Use the factor() function to create a factor by taking a vector as input.

# Create a vector as input.data