Sección 1. Capítulo 24
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Counting Factor Values
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You can count how many times each category appears in a factor using the summary() function.
Example
12345curr_f <- factor(c('USD', 'EUR', 'AUD', 'NOK', 'CHF', 'EUR', 'AUD', 'EUR')) # Count the occurrences of each level summary(curr_f)
The output lists each level with the number of times it occurs. This makes it easy to see the distribution of categories in your data.
Note
The order in which results appear corresponds to the order of levels in the factor.
Tarea
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Compute the frequency of each grade within the grades_f factor.
Solución
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Sección 1. Capítulo 24
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