cat() Function

Enhancing the output with descriptive text can greatly improve the readability and user-friendliness of the results. In R, the cat() function serves this exact purpose.

With cat(), you can combine text, expressions, and variables to construct a meaningful output. Each element you want to include in the output should be separated by a comma, and strings of text must be enclosed in quotes (either double "" or single ''). By default, cat() separates each argument with a space.

Let's take a look at an example:

cat("The result of integer division is", 10 %/% 3)

cat("The remainder of the division is", 10 %% 3)


              12
            
cat("The result of integer division is", 10 %/% 3)
cat("The remainder of the division is", 10 %% 3)

This approach clearly enhances the output, providing context and clarity. When you call the cat() function, it prints each message on a new line by default.

Compito

Swipe to start coding

Reflecting on the task of calculating full days and remaining hours from 435 hours, let's enhance the output format. The output should be structured as follows:

python
9
1
2
Full days: number
Remaining hours: number

Remember to use integer division (%/%) to determine the number of whole days and the modulo operator (%%) for any remaining hours.

Soluzione

# Output number of full days in appropriate format

cat("Full days:", 435 %/% 24)

# Output number of hours remaining in appropriate format

cat("Remaining hours:", 435 %% 24)

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Sezione 1. Capitolo 7

# Output number of full days in appropriate format

cat("___", ___)

# Output number of hours remaining in appropriate format

cat("___", ___)