R TutorialLesson 8Free preview

R Numbers

This lesson is part of R · All levels

Summary

This lesson deals with three types of numbers in R: numeric, integer, and complex. R provides a conversion function between numeric types such as as.numeric() and as.integer(). Developers will understand how R handles specific values such as Inf (not up) and NaN (Not a Number).

Key points

Numeric is a 64-bit decimal type of floating point of double precision (double)
The integer saves memory for the count data and ends with the letter 'L'
Complex handles imaginary numbers with the notation 'number + number*i'
The functions 'as.numeric() ', 'as.integer() ', and 'is.numeric() ' facilitate type conversion and checking

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