From f2c389c29e6d72c12ddd1be8629b0f154e93f1b6 Mon Sep 17 00:00:00 2001
From: Walmes Zeviani <walmeszeviani@gmail.com>
Date: Sat, 19 Sep 2015 23:33:18 -0300
Subject: [PATCH] Add dataset of a 2^3 experiment with NPK on korn yield,
 Pimentel pg 115.

---
 R/legTools.R                           |  87 +++++++++++++++++++++++--
 data-raw/kornYield.R                   |  66 +++++++++++++++++++
 data/kornYield.RData                   | Bin 0 -> 386 bytes
 data/potatoYield.RData                 | Bin 464 -> 466 bytes
 legTools.bmk                           |  77 +++++++++++++---------
 man/kornYield.Rd                       |  76 +++++++++++++++++++++
 man/plowing.Rd                         |   2 +-
 man/{potatoyield.Rd => potatoYield.Rd} |  10 +--
 man/sugarcaneYield3.Rd                 |  10 +--
 9 files changed, 280 insertions(+), 48 deletions(-)
 create mode 100644 data-raw/kornYield.R
 create mode 100644 data/kornYield.RData
 create mode 100644 man/kornYield.Rd
 rename man/{potatoyield.Rd => potatoYield.Rd} (89%)

diff --git a/R/legTools.R b/R/legTools.R
index c6b3d2b..f062b1c 100644
--- a/R/legTools.R
+++ b/R/legTools.R
@@ -353,19 +353,19 @@ NULL
 #'     experimental unit.
 #'
 #' \itemize{
-#'     \item \code{row} the rows of the latin square that controls in
+#'   \item \code{row} the rows of the latin square that controls in
 #'     one dimention. A categorical unordered factor with 6 levels.
-#'     \item \code{col} the columns of the latin square that controls in
+#'   \item \code{col} the columns of the latin square that controls in
 #'     one dimention perpendicular to the previus. A categorical
 #'     unordered factor with 6 levels.
-#'     \item \code{fertil} a categorical unordered factor with 6
+#'   \item \code{fertil} a categorical unordered factor with 6
 #'     levels that is the fertilization strategy applied. These levels
 #'     are a result of treatment cells in a three incomplete factorial
 #'     arrangrment. See detais for more information.
-#'     \item \code{yield} sugarcane yield (kg/plot).
+#'   \item \code{yield} sugarcane yield (kg/plot).
 #' }
 #'
-#' @details The levels of fetilization are in fact a combination of a
+#' @details The levels of fertilization are in fact a combination of a
 #'     \eqn{3^2} factorial experiment but not all cells are present, so
 #'     this is a (intentional) incomplete three factorial
 #'     experiment. The factors used were limestone (A: present, a:
@@ -496,3 +496,80 @@ NULL
 #'         test=adjusted(type="single-step"))
 #'
 NULL
+
+#' @name kornYield
+#'
+#' @title Korn yield as function of fertilization with NPK
+#'
+#' @description These data are from an \eqn{2^3} factorial experiment
+#'     studing the effect of Nitrogen (N), Phosporus (P) and Potassium
+#'     (K) on korn yield in a randomized block design.
+#'
+#' \itemize{
+#'   \item \code{block} a factor with 4 levels.
+#'   \item \code{N} low (-1) and high (+1) levels of nitrogen.
+#'   \item \code{P} low (-1) and high (+1) levels of phosporus.
+#'   \item \code{K} low (-1) and high (+1) levels of potassium.
+#'   \item \code{yield} korn yield (ton/ha).
+#' }
+#'
+#' @docType data
+#'
+#' @keywords datasets
+#'
+#' @usage data(kornYield)
+#'
+#' @format a \code{data.frame} with 32 records and 4 variables.
+#'
+#' @source Frederico, P. (2009). Curso de Estatística Experimental (15th
+#'     ed.). Piracicaba, São Paulo: FEALQ. (page 115)
+#'
+#' @examples
+#'
+#' library(lattice)
+#' library(latticeExtra)
+#' 
+#' data(kornYield)
+#' str(kornYield)
+#' 
+#' xyplot(yield~N|P, groups=K,
+#'        data=kornYield, type=c("p", "a"),
+#'        ylab=expression(Yield~(ton~ha^{-1})),
+#'        xlab="Nutrient level")
+#' 
+#' xyplot(yield~N, groups=interaction(P, K),
+#'        data=kornYield, type=c("p", "a"),
+#'        auto.key=list(columns=2),
+#'        ylab=expression(Yield~(ton~ha^{-1})),
+#'        xlab="Nutrient level")
+#' 
+#' m0 <- lm(yield~block+(N+P+K)^3, data=kornYield)
+#' par(mfrow=c(2,2)); plot(m0); layout(1)
+#' anova(m0)
+#' 
+#' m1 <- update(m0, .~block+N+K)
+#' par(mfrow=c(2,2)); plot(m1); layout(1)
+#' 
+#' anova(m0, m1)
+#' anova(m1)
+#' 
+#' summary(m1)
+#' 
+#' pred <- expand.grid(block="1",
+#'                     N=seq(-1, 1, by=0.1),
+#'                     K=seq(-1, 1, by=0.1))
+#' pred$mu <- predict(m1, newdata=pred)
+#' 
+#' wireframe(mu~N+K, data=pred,
+#'           scales=list(arrows=FALSE),
+#'           zlab=list(expression(Yield~(ton~ha^{-1})), rot=90),
+#'           drape=TRUE, cuts=20,
+#'           col.regions=colorRampPalette(
+#'               color=brewer.pal(n=11, name="Spectral"))(21))
+#' 
+#' levelplot(mu~N+K, data=pred, aspect=1,
+#'           main=expression(Yield~(ton~ha^{-1})),
+#'           col.regions=colorRampPalette(
+#'               color=brewer.pal(n=11, name="Spectral")))
+#'
+NULL
diff --git a/data-raw/kornYield.R b/data-raw/kornYield.R
new file mode 100644
index 0000000..bca2a49
--- /dev/null
+++ b/data-raw/kornYield.R
@@ -0,0 +1,66 @@
+##----------------------------------------------------------------------
+## Data generation.
+
+kornYield <- expand.grid(block=gl(4, 1), N=c(-1,1), P=c(-1,1),
+                         K=c(-1,1), KEEP.OUT.ATTRS=FALSE)
+kornYield$yield <- c(1.32, 2.12, 1.75, 2.35, 1.80, 2.20, 2.95, 2.96,
+                     1.66, 2.66, 1.73, 2.58, 1.72, 3.85, 2.62, 3.00,
+                     2.58, 3.56, 2.86, 2.75, 2.72, 3.20, 2.25, 2.75,
+                     2.26, 2.08, 1.95, 2.70, 2.95, 3.28, 2.40, 3.35)
+str(kornYield)
+
+save(kornYield, file="../data/kornYield.RData")
+
+##----------------------------------------------------------------------
+## Examples.
+
+library(lattice)
+library(latticeExtra)
+
+data(kornYield)
+str(kornYield)
+
+xyplot(yield~N|P, groups=K,
+       data=kornYield, type=c("p", "a"),
+       ylab=expression(Yield~(ton~ha^{-1})),
+       xlab="Nutrient level")
+
+xyplot(yield~N, groups=interaction(P, K),
+       data=kornYield, type=c("p", "a"),
+       auto.key=list(columns=2),
+       ylab=expression(Yield~(ton~ha^{-1})),
+       xlab="Nutrient level")
+
+m0 <- lm(yield~block+(N+P+K)^3, data=kornYield)
+par(mfrow=c(2,2)); plot(m0); layout(1)
+anova(m0)
+
+m1 <- update(m0, .~block+N+K)
+par(mfrow=c(2,2)); plot(m1); layout(1)
+
+anova(m0, m1)
+anova(m1)
+
+summary(m1)
+
+pred <- expand.grid(block="1",
+                    N=seq(-1, 1, by=0.1),
+                    K=seq(-1, 1, by=0.1))
+pred$mu <- predict(m1, newdata=pred)
+
+wireframe(mu~N+K, data=pred,
+          scales=list(arrows=FALSE),
+          zlab=list(expression(Yield~(ton~ha^{-1})), rot=90),
+          drape=TRUE, cuts=20,
+          col.regions=colorRampPalette(
+              color=brewer.pal(n=11, name="Spectral"))(21))
+
+levelplot(mu~N+K, data=pred, aspect=1,
+          main=expression(Yield~(ton~ha^{-1})),
+          col.regions=colorRampPalette(
+              color=brewer.pal(n=11, name="Spectral")))
+
+rm(list=ls())
+load("../data/kornYield.RData")
+ls()
+str(kornYield)
diff --git a/data/kornYield.RData b/data/kornYield.RData
new file mode 100644
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diff --git a/data/potatoYield.RData b/data/potatoYield.RData
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diff --git a/legTools.bmk b/legTools.bmk
index bb8d9f9..93387a0 100644
--- a/legTools.bmk
+++ b/legTools.bmk
@@ -2,18 +2,31 @@
 ;;; This format is meant to be slightly human-readable;
 ;;; nevertheless, you probably don't want to edit it.
 ;;; -*- End Of Bookmark File Format Version Stamp -*-
-(#1=(#("wgpigs2" 0 7
+(#1=(#("kornYield" 0 9
       (bmkp-full-record #1#))
     (filename . "~/GitLab/legTools/R/legTools.R")
     (buffer-name . "legTools.R")
-    (front-context-string . "@name wgpigs2\n#'")
-    (rear-context-string . "an)\n#'\nNULL\n\n#' ")
+    (front-context-string . "@name kornYield\n")
+    (rear-context-string . "\"))\n#'\nNULL\n\n#' ")
     (front-context-region-string)
     (rear-context-region-string)
     (visits . 0)
-    (time . #2=(22014 2449 877392 862000))
+    (time . #2=(22014 6386 355822 993000))
     (created . #2#)
-    (position . 14008))
+    (position . 16336))
+#1=(#("wgpigs2" 0 7
+      (bmkp-full-record #1#))
+    (end-position . 14001)
+    (filename . "~/GitLab/legTools/R/legTools.R")
+    (buffer-name . "legTools.R")
+    (front-context-string . "@name wgpigs2\n#'")
+    (rear-context-string . "an)\n#'\nNULL\n\n#' ")
+    (front-context-region-string)
+    (rear-context-region-string)
+    (visits . 3)
+    (time 22014 6373 782337 593000)
+    (created 22014 2449 877392 862000)
+    (position . 14001))
 #1=(#("sugarcaneYield3" 0 15
       (bmkp-full-record #1#))
     (filename . "~/GitLab/legTools/R/legTools.R")
@@ -22,9 +35,9 @@
     (rear-context-string . "an)\n#'\nNULL\n\n#' ")
     (front-context-region-string)
     (rear-context-region-string)
-    (visits . 0)
-    (time . #2=(22014 2438 565160 262000))
-    (created . #2#)
+    (visits . 2)
+    (time 22014 6373 622489 1000)
+    (created 22014 2438 565160 262000)
     (position . 11050))
 #1=(#("sugarcaneYield2" 0 15
       (bmkp-full-record #1#))
@@ -34,9 +47,9 @@
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     (front-context-region-string)
     (rear-context-region-string)
-    (visits . 0)
-    (time . #2=(22014 2428 365189 950000))
-    (created . #2#)
+    (visits . 1)
+    (time 22014 6373 470955 812000)
+    (created 22014 2428 365189 950000)
     (position . 9217))
 #1=(#("sugarcaneYield" 0 14
       (bmkp-full-record #1#))
@@ -46,9 +59,9 @@
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     (front-context-region-string)
     (rear-context-region-string)
-    (visits . 0)
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+    (visits . 1)
+    (time 22014 6373 318366 504000)
+    (created 22014 2414 357030 236000)
     (position . 8152))
 #1=(#("cassavaYield" 0 12
       (bmkp-full-record #1#))
@@ -58,9 +71,9 @@
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-    (visits . 0)
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 #1=(#("defoliation" 0 11
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@@ -70,9 +83,9 @@
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     (position . 3566))
 #1=(#("plowing" 0 7
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     (position . 2330))
 #1=(#("potatoYield" 0 11
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 #1=(#("wgpigs" 0 6
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 #1=(#("legTools.R" 0 10
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 #1=(#("DESCRIPTION" 0 11
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diff --git a/man/kornYield.Rd b/man/kornYield.Rd
new file mode 100644
index 0000000..be35646
--- /dev/null
+++ b/man/kornYield.Rd
@@ -0,0 +1,76 @@
+% Generated by roxygen2 (4.1.1): do not edit by hand
+% Please edit documentation in R/legTools.R
+\docType{data}
+\name{kornYield}
+\alias{kornYield}
+\title{Korn yield as function of fertilization with NPK}
+\format{a \code{data.frame} with 32 records and 4 variables.}
+\source{
+Frederico, P. (2009). Curso de Estatística Experimental (15th
+    ed.). Piracicaba, São Paulo: FEALQ. (page 115)
+}
+\usage{
+data(kornYield)
+}
+\description{
+These data are from an \eqn{2^3} factorial experiment
+    studing the effect of Nitrogen (N), Phosporus (P) and Potassium
+    (K) on korn yield in a randomized block design.
+
+\itemize{
+  \item \code{block} a factor with 4 levels.
+  \item \code{N} low (-1) and high (+1) levels of nitrogen.
+  \item \code{P} low (-1) and high (+1) levels of phosporus.
+  \item \code{K} low (-1) and high (+1) levels of potassium.
+  \item \code{yield} korn yield (ton/ha).
+}
+}
+\examples{
+library(lattice)
+library(latticeExtra)
+
+data(kornYield)
+str(kornYield)
+
+xyplot(yield~N|P, groups=K,
+       data=kornYield, type=c("p", "a"),
+       ylab=expression(Yield~(ton~ha^{-1})),
+       xlab="Nutrient level")
+
+xyplot(yield~N, groups=interaction(P, K),
+       data=kornYield, type=c("p", "a"),
+       auto.key=list(columns=2),
+       ylab=expression(Yield~(ton~ha^{-1})),
+       xlab="Nutrient level")
+
+m0 <- lm(yield~block+(N+P+K)^3, data=kornYield)
+par(mfrow=c(2,2)); plot(m0); layout(1)
+anova(m0)
+
+m1 <- update(m0, .~block+N+K)
+par(mfrow=c(2,2)); plot(m1); layout(1)
+
+anova(m0, m1)
+anova(m1)
+
+summary(m1)
+
+pred <- expand.grid(block="1",
+                    N=seq(-1, 1, by=0.1),
+                    K=seq(-1, 1, by=0.1))
+pred$mu <- predict(m1, newdata=pred)
+
+wireframe(mu~N+K, data=pred,
+          scales=list(arrows=FALSE),
+          zlab=list(expression(Yield~(ton~ha^{-1})), rot=90),
+          drape=TRUE, cuts=20,
+          col.regions=colorRampPalette(
+              color=brewer.pal(n=11, name="Spectral"))(21))
+
+levelplot(mu~N+K, data=pred, aspect=1,
+          main=expression(Yield~(ton~ha^{-1})),
+          col.regions=colorRampPalette(
+              color=brewer.pal(n=11, name="Spectral")))
+}
+\keyword{datasets}
+
diff --git a/man/plowing.Rd b/man/plowing.Rd
index 66fc799..30c69ca 100644
--- a/man/plowing.Rd
+++ b/man/plowing.Rd
@@ -29,7 +29,7 @@ These data are from an experiment done by the engineer
 }
 \examples{
 library(lattice)
-data(potatoyield)
+data(plowing)
 
 xyplot(yield~plow|block, data=plowing, type=c("p", "a"),
        ylab=expression(Yield~(t~ha^{-1})),
diff --git a/man/potatoyield.Rd b/man/potatoYield.Rd
similarity index 89%
rename from man/potatoyield.Rd
rename to man/potatoYield.Rd
index 441fce5..3a07526 100644
--- a/man/potatoyield.Rd
+++ b/man/potatoYield.Rd
@@ -1,8 +1,8 @@
 % Generated by roxygen2 (4.1.1): do not edit by hand
 % Please edit documentation in R/legTools.R
 \docType{data}
-\name{potatoyield}
-\alias{potatoyield}
+\name{potatoYield}
+\alias{potatoYield}
 \title{Potato variety competition experiment}
 \format{a \code{data.frame} with 32 records and 3 variables.}
 \source{
@@ -10,7 +10,7 @@ Frederico, P. (2009). Curso de Estatística Experimental (15th
     ed.). Piracicaba, São Paulo: FEALQ. (page 76)
 }
 \usage{
-data(potatoyield)
+data(potatoYield)
 }
 \description{
 These data are from an experiment done by the engineer
@@ -27,9 +27,9 @@ These data are from an experiment done by the engineer
 }
 \examples{
 library(lattice)
-data(potatoyield)
+data(potatoYield)
 
-plot(yield~variety, data=potatoyield,
+plot(yield~variety, data=potatoYield,
      groups=block, type="o",
      ylab=expression(Yield~(t~ha^{-1})),
      xlab="Variety")
diff --git a/man/sugarcaneYield3.Rd b/man/sugarcaneYield3.Rd
index b7418bf..048af7a 100644
--- a/man/sugarcaneYield3.Rd
+++ b/man/sugarcaneYield3.Rd
@@ -18,20 +18,20 @@ These data are from an experiment done in a latin square
     experimental unit.
 
 \itemize{
-    \item \code{row} the rows of the latin square that controls in
+  \item \code{row} the rows of the latin square that controls in
     one dimention. A categorical unordered factor with 6 levels.
-    \item \code{col} the columns of the latin square that controls in
+  \item \code{col} the columns of the latin square that controls in
     one dimention perpendicular to the previus. A categorical
     unordered factor with 6 levels.
-    \item \code{fertil} a categorical unordered factor with 6
+  \item \code{fertil} a categorical unordered factor with 6
     levels that is the fertilization strategy applied. These levels
     are a result of treatment cells in a three incomplete factorial
     arrangrment. See detais for more information.
-    \item \code{yield} sugarcane yield (kg/plot).
+  \item \code{yield} sugarcane yield (kg/plot).
 }
 }
 \details{
-The levels of fetilization are in fact a combination of a
+The levels of fertilization are in fact a combination of a
     \eqn{3^2} factorial experiment but not all cells are present, so
     this is a (intentional) incomplete three factorial
     experiment. The factors used were limestone (A: present, a:
-- 
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