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Sumario Intro RStudio (interfaz, funciones, graficos, data management) $15.49   Add to cart

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Sumario Intro RStudio (interfaz, funciones, graficos, data management)

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Manual introductorio al programa para manejo de datos R / RStudio. Incluye explicacion de la interfaz, funciones, gráficos, data management, data wrangling, etcetera.

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  • November 11, 2024
  • 21
  • 2024/2025
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Intro a RStudio - Farias Malena
Manual de uso para RStudio realizado por Malena Farias
para el curso “Análisis de Datos para Ciencias Sociales” en
la Universidad Torcuato Di Tella, dictada por Camila Navajas
Ahumada.

Introducción
Interfaz




Intro a RStudio - Farias Malena 1

, Set Working Directory
Setear working directory
setwd("/")


Ver working directory
getwd()


O puedo hacer Session > Set Working Directory > Choose Directory


Console Window
Código en azul → comando correctamente ejecutado.

Signo >| con la barra parpadeando, indica que R está listo para procesar
nuevas instrucciones.


Objetos
Una base de datos

Un subset de esa base de datos

Un número

Un texto string

Una función

Cargar base de datos
CSV

nombre <- read.csv("archivo.csv")


RData

nombre <- load("archivo.RData")


DTA




Intro a RStudio - Farias Malena 2

, nombre <- load("archivo.dta")


XLSX (Excel)

library(readxl)
nombre <- read_excel("archivo.xlsx")

Guardar base de datos
CSV

write.csv(nombre, file = "archivo.csv")


RData

save(nombre, file = "archivo.RData")


Data Frames
Es una colección de vectores

Funciones útiles para usar con data frames

names(): muestra un vector con el nombre de las varia
nrow(): muestra el número de filas
ncol(): muestra el número de columnas
dim(): combina ncol() y nrow() en un solo vector
summary(): produce un summary de la data
head(): muestra las primeras 6 observaciones
tail(): muestra las últimas 6 observaciones


Uso [] para extraer fragmentos de bases de datos

Primeras 3 obs de una variable
objeto[1:3, "variable2"]
objeto[1:3, 2]

Primeras 3 obs de todas las variables



Intro a RStudio - Farias Malena 3

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