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Lernen Converting | Vectors
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Converting

Good! Now you can convert numbers into integers while creating. But what if you want to convert specific results? Putting L will not help and raise an error, like in the example below.

123
# Some number num <- 20 numL # Trying using L for converting
copy

The output of the script above is:

Error: object 'numL' not found

Surely, not what we were wanted to do.

R provides us with very simple and convenient functions to convert variables/values into different formats. These are as.double(), as.integer(), as.complex(). See, the functions' names are intuitive!

There is a 'hierarchy' within numerical types, i.e., each integer number can be converted into double and complex, and each double can be converted into complex. complex numbers can not be converted into either double, either integer type (unless the imaginary part is 0). double numbers can be converted into integer, but this will not round, but truncate to integer part.

Try these functions by yourself!

Aufgabe

Swipe to start coding

  1. Convert the number 9.85 into integer.
  2. Convert the number 23.8 into complex.
  3. Convert the integer number 42 created by using L into double.

Lösung

Switch to desktopWechseln Sie zum Desktop, um in der realen Welt zu übenFahren Sie dort fort, wo Sie sind, indem Sie eine der folgenden Optionen verwenden
War alles klar?

Wie können wir es verbessern?

Danke für Ihr Feedback!

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book
Converting

Good! Now you can convert numbers into integers while creating. But what if you want to convert specific results? Putting L will not help and raise an error, like in the example below.

123
# Some number num <- 20 numL # Trying using L for converting
copy

The output of the script above is:

Error: object 'numL' not found

Surely, not what we were wanted to do.

R provides us with very simple and convenient functions to convert variables/values into different formats. These are as.double(), as.integer(), as.complex(). See, the functions' names are intuitive!

There is a 'hierarchy' within numerical types, i.e., each integer number can be converted into double and complex, and each double can be converted into complex. complex numbers can not be converted into either double, either integer type (unless the imaginary part is 0). double numbers can be converted into integer, but this will not round, but truncate to integer part.

Try these functions by yourself!

Aufgabe

Swipe to start coding

  1. Convert the number 9.85 into integer.
  2. Convert the number 23.8 into complex.
  3. Convert the integer number 42 created by using L into double.

Lösung

Switch to desktopWechseln Sie zum Desktop, um in der realen Welt zu übenFahren Sie dort fort, wo Sie sind, indem Sie eine der folgenden Optionen verwenden
War alles klar?

Wie können wir es verbessern?

Danke für Ihr Feedback!

close

Awesome!

Completion rate improved to 12.5

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