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Counting Values | Factors
R Introduction: Part I
course content

Contenido del Curso

R Introduction: Part I

R Introduction: Part I

1. Basic Syntax and Operations
2. Basic Data Types and Vectors
3. Factors

bookCounting Values

If you're looking to count the occurrences of each value within a vector, the summary() function is exactly what you need.

To tally the frequency of each level within a factor, use the summary() function with the factor as its argument. This will list the occurrences for each level that the factor can take. For instance:

12345
# Factor variable curr_f <- factor(c('USD', 'EUR', 'AUD', 'NOK', 'CHF', 'EUR', 'AUD', 'EUR')) # Show summary summary(curr_f)
copy

Remember, the sequence of the levels reported by summary() corresponds to the order defined when you used the factor() function. If no order is defined, it defaults to numerical or alphabetical order.

Tarea
test

Swipe to show code editor

For the grades data mentioned earlier, compute the frequency of each grade within the grades_f factor.

Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
¿Todo estuvo claro?

¿Cómo podemos mejorarlo?

¡Gracias por tus comentarios!

Sección 3. Capítulo 4
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bookCounting Values

If you're looking to count the occurrences of each value within a vector, the summary() function is exactly what you need.

To tally the frequency of each level within a factor, use the summary() function with the factor as its argument. This will list the occurrences for each level that the factor can take. For instance:

12345
# Factor variable curr_f <- factor(c('USD', 'EUR', 'AUD', 'NOK', 'CHF', 'EUR', 'AUD', 'EUR')) # Show summary summary(curr_f)
copy

Remember, the sequence of the levels reported by summary() corresponds to the order defined when you used the factor() function. If no order is defined, it defaults to numerical or alphabetical order.

Tarea
test

Swipe to show code editor

For the grades data mentioned earlier, compute the frequency of each grade within the grades_f factor.

Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
¿Todo estuvo claro?

¿Cómo podemos mejorarlo?

¡Gracias por tus comentarios!

Sección 3. Capítulo 4
toggle bottom row

bookCounting Values

If you're looking to count the occurrences of each value within a vector, the summary() function is exactly what you need.

To tally the frequency of each level within a factor, use the summary() function with the factor as its argument. This will list the occurrences for each level that the factor can take. For instance:

12345
# Factor variable curr_f <- factor(c('USD', 'EUR', 'AUD', 'NOK', 'CHF', 'EUR', 'AUD', 'EUR')) # Show summary summary(curr_f)
copy

Remember, the sequence of the levels reported by summary() corresponds to the order defined when you used the factor() function. If no order is defined, it defaults to numerical or alphabetical order.

Tarea
test

Swipe to show code editor

For the grades data mentioned earlier, compute the frequency of each grade within the grades_f factor.

Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
¿Todo estuvo claro?

¿Cómo podemos mejorarlo?

¡Gracias por tus comentarios!

If you're looking to count the occurrences of each value within a vector, the summary() function is exactly what you need.

To tally the frequency of each level within a factor, use the summary() function with the factor as its argument. This will list the occurrences for each level that the factor can take. For instance:

12345
# Factor variable curr_f <- factor(c('USD', 'EUR', 'AUD', 'NOK', 'CHF', 'EUR', 'AUD', 'EUR')) # Show summary summary(curr_f)
copy

Remember, the sequence of the levels reported by summary() corresponds to the order defined when you used the factor() function. If no order is defined, it defaults to numerical or alphabetical order.

Tarea
test

Swipe to show code editor

For the grades data mentioned earlier, compute the frequency of each grade within the grades_f factor.

Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
Sección 3. Capítulo 4
Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
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