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R es un lenguaje y entorno de programación para análisis estadístico y gráfico. Se trata de un proyecto de software libre, resultado de la implementación GNU del clásico lenguaje científico S-Plus. R y S-Plus son, probablemente, los dos lenguajes más utilizados en investigación por la comunidad estadística, siendo además muy populares en el campo de la investigación biomédica, la bioinformática y las matemáticas financieras. A esto contribuye la posibilidad de cargar diferentes bibliotecas o paquetes con finalidades específicas de cálculo o gráficos. R se distribuye bajo la licencia GNU GPL y está disponible para los sistemas operativos Windows, Macintosh, Unix y GNULinux. El contenido esencial del libro es el siguiente: IMPORTANDO Y EXPORTANDO DATOS EL LENGUAJE R. NÚMEROS, OPERADORES, VARIABLES Y FUNCIONES REALES NÚMEROS ENTEROS Y FUNCIONES DE VARIABLE ENTERA NÚMEROS REALES Y FUNCIONES DE VARIABLE REAL FUNCIONES TRIGONOMÉTRICAS FUNCIONES HIPERBÓLICAS FUNCIONES EXPONENCIALES Y LOGARÍTMICAS FUNCIONES ESPECÍFICAS DE VARIABLE NUMÉRICA VARIABLES SIMPLES VARIABLES VECTORIALES ELEMENTOS DE VARIABLES VECTORIALES FUNCIONES DE VARIABLES VECTORIALES VARIABLES MATRICIALES ELEMENTOS DE VARIABLES MATRICIALES FUNCIONES MATRICIALES ESPECÍFICAS FUNCIONES DE VARIABLES MATRICIALES OPERADORES VARIABLES Y FUNCIONES DE CADENA SECUENCIAS Y MARCOS DE DATOS DEFINICIÓN DE FUNCIONES A MEDIDA FUNCIONES MATAMATICAS PREDEFINIDAS EN R FUNCIONES MATEMÁTICAS ELEMENTALES DE VARIABLE REAL FUNCIONES MATEMÁTICAS ESPECIALIZADAS DE VARIABLE REAL FUNCIONES DE ANÁLISIS ESTADÍSTICO BÁSICO EL LENGUAJE DE R. VARIABLE COMPLEJA NÚMEROS COMPLEJOS OPERACIONES BÁSICAS CON NÚMEROS COMPLEJOS FUNCIONES GENERALES DE VARIABLE COMPLEJA FUNCIONES TRIGONOMÉTRICAS DE VARIABLE COMPLEJA FUNCIONES HIPERBÓLICAS DE VARIABLE COMPLEJA FUNCIONES EXPONENCIALES Y LOGARÍTMICAS DE VARIABLE COMPLEJA FUNCIONES ESPECÍFICAS DE VARIABLE COMPLEJA FUNCIONES BÁSICAS CON ARGUMENTO UN VECTOR COMPLEJO FUNCIONES GENERALES CON ARGUMENTO UNA MATRIZ COMPLEJA FUNCIONES TRIGONOMÉTRICAS DE VARIABLE MATRIZ COMPLEJA FUNCIONES HIPERBÓLICAS DE VARIABLE MATRIZ COMPLEJA FUNCIONES EXPONENCIALES Y LOGARÍTMICAS DE VARIABLE MATRIZ COMPLEJA FUNCIONES ESPECÍFICAS DE VARIABLE MATRICIAL COMPLEJA ALGEBRA MATRICIAL ESPACIOS VECTORIALES APLICACIONES LINEALES FORMAS CUADRATICAS OPERACIONES MATRICIALES CON MATRICES REALES OPERACIONES CON MATRICIALES COMPLEJAS CURVAS Y SUPERFICIES EN R GRAFICOS BÁSICOS EN R. EL COMANDO PLOT PARA GRÁFICOS DE SECUENCIA Y DISPERSIÓN CURVAS PLANAS EN COORDENADAS PARAMÉTRICAS POLÍGONOS Y RECTÁNGULOS GRÁFICOS CON FLECHAS Y SEGMENTOS PUNTOS, LINEAS, TEXTOS, LEYENDAS, TÍTULOS, EJES Y CAJAS EN LOS GRÁFICOS CURVAS PLANAS EN COORDENADAS EXPLÍCITAS CURVAS PLANAS EN COORDENADAS POLARES GRAFICOS DE SUPERFICIES VENTANAS GRÁFICAS EN R PARÁMETROS GRÁFICOS