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pet-estatistica
labestData
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a397d8a2
Commit
a397d8a2
authored
Mar 10, 2016
by
Alcides Conte Neto
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Adicionado Documentacao Tb1.5 Cap1
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Alcides50
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R/BorgesTb1.5.R
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R/BorgesTb1.5.R
data-raw/BorgesTb1.5.txt
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data/BorgesTb1.5.rda
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#' @name BorgesTb1.5
#' @title Valores de CTC direta e indereta
#'
#' @description O experimento foi realizado em quatro blocos, sendo
#' planejado para estudar o efeito da calagem sobre a CTC
#' (Capacidade de troca catiônica) do solo medida por dois métodos
#' diferentes.
#'
#' Os valores foram medidos 18 meses após a calagem incorporada ao
#' solo, segundo a dose de calcário, medida em tonelados por hectare
#' (t/ha).
#'
#' @format Um \code{data.frame} de 32 linhas e 4 colunas.
#'
#' \describe{
#'
#' \item{\code{bloco}}{Indica a qual bloco a amostra pertence.}
#'
#' \item{\code{dose}}{Indica a dose usada na referida observação.}
#'
#' \item{\code{direta}}{Indica se é valor de CTC direta (1) ou
#' indireta (0).}
#'
#' \item{\code{ctc}}{É o valor observado de CTC, medido em
#' mmol_{c}/kg.}
#'
#' }
#'
#' @keywords CTC solo
#'
#' @source Borges, C. G., Demétrio, & Zocchi, S. S. (2011).
#' Modelo de Regressão. Piracicaba, SP: USP.
#'
#' @examples
#'
#' ## Carregando pacotes necessários -----------------------------------
#'
#' library(lattice)
#'
#' ## Carregando o banco de dados --------------------------------------
#'
#' data(BorgesTb1.5)
#'
#' ## Plotando o gráfico -----------------------------------------------
#'
#' xyplot(ctc ~ dose, data = BorgesTb1.5,
#' main = "Dose VS CTC",
#' xlab = "Dose",
#' ylab = "CTC",
#' panel = function(x, y) {
#' panel.xyplot(x, y)
#' panel.abline(lm(y ~ x), col = 3)
#' })
#'
NULL
\ No newline at end of file
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data-raw/BorgesTb1.5.txt
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"bloco" "dose" "direta" "
valor
"
"bloco" "dose" "direta" "
ctc
"
1 0 0 83
2 0 0 90.7
3 0 0 85.8
...
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