Conteúdo do Curso
R Introduction: Part I
R Introduction: Part I
Summary
If you're looking to count the occurrences of each value within a vector, the summary()
function is precisely what you need.
To tally the frequency of each level within a factor, invoke the summary()
function with the factor as its argument. This will enumerate the occurrences for each level that the factor can take. For instance:
Remember, the sequence of the levels reported by summary()
corresponds to the order defined when you employed the factor()
function (without a defined order, it defaults to numerical order or alphabetical order).
Tarefa
For the grades data mentioned earlier compute the frequency of each grade within the grades_f
factor.
Tudo estava claro?
Conteúdo do Curso
R Introduction: Part I
R Introduction: Part I
Summary
If you're looking to count the occurrences of each value within a vector, the summary()
function is precisely what you need.
To tally the frequency of each level within a factor, invoke the summary()
function with the factor as its argument. This will enumerate the occurrences for each level that the factor can take. For instance:
Remember, the sequence of the levels reported by summary()
corresponds to the order defined when you employed the factor()
function (without a defined order, it defaults to numerical order or alphabetical order).
Tarefa
For the grades data mentioned earlier compute the frequency of each grade within the grades_f
factor.
Tudo estava claro?