misc documentation updates

man/ansari.wheat.uniformity.Rd

@@ -24,12 +24,12 @@
   "Wheat was sown over an area of 180 ft. x 243 ft. with 324 rows on a
   field of average fertility. It had wheat during 1938-39 rabi and was
   fallow during 1939-40 kharif. The seed was sown behind desi plough in
-  rows 9 in. apart, the length of each row being 180 ft".
+  rows 9 inches apart, the length of each row being 180 feet".
 
-  "At the time of harvest, 18 rows on both sides and 10 ft. at the end of
+  "At the time of harvest, 18 rows on both sides and 10 feet at the end of
   the field were discarded to eliminate border effects and an area of
-  160 ft. x 216 ft. with 288 rows was harvested in small units, each
-  being 2 ft. 3 in. broad with three rows 20 ft. long. There were 96
+  160 feet x 216 feet with 288 rows was harvested in small units, each
+  being 2 feet 3 inches broad with three rows 20 feet long. There were 96
   units across the rows and eight units along the rows. The total number
   of unit plots thus obtained was 768. The yield of grain for each unit
   plot was weighed and recorded separately and is given in the appendix."

man/arankacami.groundnut.uniformity.Rd

@@ -26,7 +26,7 @@
   Ira Arankacami, R. Rangaswamy. (1995).
   A Text Book of Agricultural Statistics.
   New Age International Publishers.
-  Table 19.1.
+  Table 19.1. Page 237.
   https://www.google.com/books/edition/A_Text_Book_of_Agricultural_Statistics/QDLWE4oakSgC
 }
 \references{

man/bailey.cotton.uniformity.Rd

@@ -29,11 +29,18 @@
   Add 1.5m for irrigation channel.
   Center-to-center distances 15m x 8.5m.
 
-  Chart 1: Sakha 1921, 8 x 20. Length 20 ridges * .75 m = 15m. Width = 7m.
+  Charts 3 & 5 show yield of "Selected Average Plants". These data are
+  not used here.
+
+  Chart 1: Sakha 1921, 8 x 20. Bed yield in rotls. Length 20 ridges * .75 m = 15m. Width = 7m.
 
   Chart 2: Gemmeiza 1921, 8 x 20.
+
+  Chart 3: Total S.A.P. yield in grams. (not used here)
 
   Chart 4: Gemmeiza 1922, 8 x 20.
+
+  Chart 5: Total S.A.P. yield in grams. (not used here)
 
   Layout at Giza (page 10)
 

man/baker.strawberry.uniformity.Rd

@@ -11,23 +11,35 @@
 \format{
   A data frame with 700 observations on the following 4 variables.
   \describe{
-    \item{\code{trial}}{a factor with levels \code{T1} \code{T2}}
-    \item{\code{row}}{a numeric vector}
-    \item{\code{col}}{a numeric vector}
-    \item{\code{yield}}{a numeric vector}
+    \item{\code{trial}}{Factor for trial}
+    \item{\code{row}}{row ordinate}
+    \item{\code{col}}{column ordinate}
+    \item{\code{yield}}{yield per plant/plot in grams}
   }
 }
 \details{
-  In trial T1, 200 plants were grown in two double-row beds at Davis,
-  CA, in 1946. The rows were 1 foot apart. The beds were 42 inches
+
+  Trial T1:
+
+  200 plants were grown in two double-row beds at Davis,
+  California, in 1946. The rows were 1 foot apart. The beds were 42 inches
   apart. The plants were 10 inches apart within a row, each row
   consisting of 50 plants.
 
   Field length: 50 plants * 10 inches = 500 inches.
 
-  Field width: 12 in + 42 in + 12 in =
+  Field width: 12 in + 42 in + 12 in = 66 inches.
+
+  The layout of the experiment in Table 1 shows 4 columns.
+  There is 12 inches between column 1 and column 2, then 42 inches,
+  then 12 inches between column 3 and column 4.
+  For the data in this R package, we added 3 to the right two columns
+  index values to indicate this layout.
+  (Should be 3.5, but we want to have an integer).
 
-  In trial T2, 500 plants were grown in single beds. The beds were 30
+  Trial T2:
+
+  500 plants were grown in single beds. The beds were 30
   inches apart. Each bed was 50 plants long with 10 inches between
   plants.
 
@@ -57,15 +69,12 @@ libs(dplyr)
 dat <- group_by(dat, trial)
 summarize(dat, mn=mean(yield), cv=sd(yield)/mean(yield))
 
-dat <- mutate(dat, col = ifelse(trial=="T1" & col==4, 7, col),
-                   col = ifelse(trial=="T1" & col==3, 6, col))
-
 libs(desplot)
 desplot(dat, yield ~ col*row, subset=trial=="T1",
-        flip=TRUE, aspect=500/(5*12),
+        flip=TRUE, aspect=500/66, tick=TRUE,
         main="baker.strawberry.uniformity - trial T1")
 desplot(dat, yield ~ col*row, subset=trial=="T2",
-        flip=TRUE, aspect=500/300,
+        flip=TRUE, aspect=500/300, tick=TRUE,
         main="baker.strawberry.uniformity - trial T2")
 
 }

man/bancroft.peanut.uniformity.Rd

@@ -13,7 +13,7 @@
   \describe{
     \item{\code{row}}{row}
     \item{\code{col}}{column}
-    \item{\code{yield}}{yield, pounds}
+    \item{\code{yield}}{yield, pounds per plot}
     \item{\code{block}}{block}
   }
 }

man/batchelor.uniformity.Rd

@@ -19,7 +19,7 @@
   \describe{
     \item{\code{row}}{row}
     \item{\code{col}}{column}
-    \item{\code{yield}}{yield per tree (pounds)}
+    \item{\code{yield}}{yield per tree in pounds}
   }
 }
 \details{
@@ -29,6 +29,7 @@
 
   The following details are from Batchelor (1918).
 
+
   \bold{Jonathan Apples}
 
   "The apple records were obtained from a 10-year old
@@ -64,6 +65,7 @@
 
   Field length: 26 trees * 24 feet = 624 feet
 
+
   \bold{Navel 1 at Arlington}
 
   These records were of the 1915-16 yields of one thousand 24-year-old
@@ -82,6 +84,7 @@
 
   Field length: 50 trees * 22 feet = 1100 feet
 
+
   \bold{Navel 2 at Antelope}
 
   The navel-orange grove later referred to as the Antelope Heights
@@ -95,6 +98,7 @@
 
   Field length: 33 trees * 22 feet = 726 feet
 
+
   \bold{Valencia Orange}
 
   The Valencia orange grove is composed of 240 15-year-old trees,
@@ -105,6 +109,7 @@
 
   Field length: 20 rows * 22 feet = 440 feet
 
+
   \bold{Walnut}
 
   The walnut (Juglans regia) yields were obtained during the seasons of

man/bose.multi.uniformity.Rd

@@ -15,7 +15,7 @@
     \item{\code{crop}}{crop}
     \item{\code{row}}{row ordinate}
     \item{\code{col}}{column ordinate}
-    \item{\code{yield}}{plot yield, grams}
+    \item{\code{yield}}{yield per plot in grams}
   }
 }
 \details{

man/bradley.multi.uniformity.Rd

@@ -72,7 +72,8 @@
   P. L. Bradley (1941).
   A study of the variation in productivity over a number of fixed plots in field 2.
   Dissertation: The University of the West Indies. Appendix 1a, 1b, 1c, 1d.
-  https://hdl.handle.net/2139/41264
+  https://uwispace.sta.uwi.edu/items/e874561d-52e5-4e39-8416-ff8c1756049c
+  https://hdl.handle.net/2139/41259
 
   The data are repeated in:
   C. E. Wilson.

man/bryan.corn.uniformity.Rd

@@ -19,8 +19,8 @@
 }
 \details{
   Three varieties of corn were planted.
-  Each experiment was 48 rows, each row 48 hills long, .65 acres.  (A
-  "hill" is a single hole with possibly multiple seeds).
+  Each experiment was 48 rows, each row 48 hills long, .65 acres.
+  A "hill" is a single hole with possibly multiple seeds.
   Spacing between the hills would be sqrt(43560 sq ft * .64) / 48 = 3.5 feet.
 
   In the experiment code, K=Krug, I=Iodent, M=McCulloch (varieties of

man/coombs.rice.uniformity.Rd

@@ -13,7 +13,7 @@
   \describe{
     \item{\code{row}}{row}
     \item{\code{col}}{column}
-    \item{\code{yield}}{yield in gantangs}
+    \item{\code{yield}}{yield in gantangs per plot}
   }
 }
 \details{

man/day.wheat.uniformity.Rd

@@ -13,8 +13,8 @@ Uniformity trial of wheat in 1903 in Missouri.
   \describe{
     \item{\code{row}}{row}
     \item{\code{col}}{col}
-    \item{\code{grain}}{grain weight, grams}
-    \item{\code{straw}}{straw weight, grams}
+    \item{\code{grain}}{grain weight, grams per plot}
+    \item{\code{straw}}{straw weight, grams per plot}
   }
 }
 

man/ducker.groundnut.uniformity.Rd

@@ -2,7 +2,7 @@
 \alias{ducker.groundnut.uniformity}
 \docType{data}
 \title{
-Uniformity trial of groundnut.
+Uniformity trial of groundnut
 }
 \description{
 Uniformity trial of groundnut.

man/evans.sugarcane.uniformity.Rd

@@ -18,6 +18,7 @@
 }
 \details{
   A field of ratoon canes was harvested in 20-hole plots.
+
   Described in a letter to Frank Yates written 21 May 1935.
 
   Field length: 5 plots x 50 feet (20 stools per plot; 30 inches between stools) = 250 feet

man/garber.multi.uniformity.Rd

@@ -14,7 +14,7 @@
   \describe{
     \item{\code{row}}{row}
     \item{\code{col}}{column}
-    \item{\code{oats}}{yield of oat hay, pounds}
+    \item{\code{oats}}{yield of oat hay, pounds per acre}
     \item{\code{wheat}}{yield of wheat grain, bu}
   }
 }
@@ -24,41 +24,60 @@
   all sides, the harvested area was 61 feet x 14 feet. The plots were
   laid out in doubles with a 14-foot roadway between the plots.
 
-  Note: The orientation of the plots is a guess.
+  Note: The orientation of the plots (68x21) is an educated guess.
+  If the orientation was 21x68, the field would be extremely narrow and
+  long.
 
   Field width: 6 plots * 68 feet + 14 ft/roadway * 2 = 436 feet
 
   Field length: 45 plots * 21 feet/plot = 945 feet
 
-  In 1923 the field was planted to oats and harvested as hay.
-
-  In 1924 the field was planted to wheat and harvested for grain.
-
-  Garber: "Plots 211 to 214, and 261 to 264, [note, these are rows
+  Garber said: "Plots 211 to 214, and 261 to 264, [note, these are rows
   11-14, columns 5-6] inclusive, were eliminated from this study because
   of the fact that a few years ago a straw stack had stood on or in the
   vicinity...which undoubtedly accounts for the relatively high yields
   on plots 261 to 264, inclusive."
 
-  Note: The source document contained mean-subtracted yields.  The oat
+
+  1923 results
+
+  In 1923 the field was planted to oats and harvested as hay.
+
+  The data for the oat hay was given in Table 5 as mean-subtracted
+  yields in pounds per acre for each plot. The oat
   yield in row 22, column 5 was given as +59.7.  This is obviously
   incorrect, since the negative yields all end in '.7' and positive
   yields all ended in '.3'.  We used -59.7 as the centered yield value
-  and added the mean of 1883.7 to all centered yields to obtain absolute
-  yields.
+  and added the mean of 1883.7 (p. 259) to all centered yields to obtain
+  absolute yields.
 
-  Note: Another paper by these authors,
-  "A Method of Laying Out Experimental Plats", contains three additional
-  years of uniformity trials, with each crop expressed as a percentage.
-  https://archive.org/details/in.ernet.dli.2015.229753?q=method+of+laying+out+experiment+plats
+
+  1924 results
+
+  In 1924 the field was planted to winter wheat and harvested for grain.
+
+  The data for the wheat was given in bushels per acre, expressed as
+  deviations from the mean yield (15.6 bu).
+  We added the mean to all plot data.
+
+
+  Note, Garber et al (1926) and Garber et al (1931) describe uniformity
+  trials from the same field, but the experimental plot numbers in the
+  two papers are different, indicating different parts of the field.
+
 }
 \source{
   Garber, R.J. and Mcllvaine, T.C. and Hoover, M.M. 1926.
   A study of soil heterogeneity in experiment plots.
   Jour Agr Res, 33, 255-268. Tables 3, 5.
   https://naldc.nal.usda.gov/download/IND43967148/PDF
 }
-
+\references{
+  Garber, R. J. and T. C. McIlvaine and M. M. Hoover (1931).
+  A Method of Laying Out Experimental Plats.
+  Journal of the American Society of Agronomy, 23, 286-298,
+  https://archive.org/details/in.ernet.dli.2015.229753/page/n299
+}
 \examples{
 \dontrun{
 

man/gregory.cotton.Rd

@@ -11,7 +11,7 @@
 \format{
   A data frame with 144 observations on the following 6 variables.
   \describe{
-    \item{\code{yield}}{a numeric vector}
+    \item{\code{yield}}{yield}
     \item{\code{year}}{year}
     \item{\code{nitrogen}}{nitrogen level}
     \item{\code{date}}{sowing date}

man/grover.diallel.Rd

@@ -11,7 +11,7 @@
 \format{
   A data frame with 144 observations on the following 5 variables.
   \describe{
-    \item{\code{yield}}{a numeric vector}
+    \item{\code{yield}}{yield value}
     \item{\code{rep}}{a character vector}
     \item{\code{parent1}}{a character vector}
     \item{\code{parent2}}{a character vector}

man/hansen.multi.uniformity.Rd

@@ -29,6 +29,7 @@
   https://en.wikipedia.org/wiki/Alen_(unit_of_length) The Danish alen =
   62.77 cm.
 
+
   Field A2:
 
   Based on the map, the field is approximately 60 alen x 70 alen (38 m x
@@ -44,6 +45,7 @@
   excess lay in row 3 and eventually it was decided to reduce plots 3c
   to 96 and 3f to 84.
 
+
   Field E2:
 
   Field is approximately 120 alen x 200 alen (76m x 125m).  Plots are

man/haritonenko.sugarbeet.uniformity.Rd

@@ -18,15 +18,11 @@
 }
 \details{
 
-  Roemer (1920) says: Haritonenko (36), Versuch der landwirtschaftlichen
-  Versuchsstation Iwanowskoje, Gouvernement Nowgorod. Versuchsfläche 5
-  ha 68 a mit 416 Teilstücken zu 136,5 qm. Die Reihe 1 weist erheblich
-  geringeren Boden auf als die drei anderen Reihen.
-
-  Translated: Haritonenko (36), experiment at Ivanovskoye Agricultural
-  Experimental Station, Novgorod Governorate. Test area 5.68 ha with
-  416 sections (plots) of 136.5 square meters. Row 1 has significantly
-  less soil than the other three rows.
+  Roemer (1920) says: Haritonenko (36), experiment at Ivanovskoye Agricultural
+  Experimental Station, Novgorod Governorate.
+  The test area was 5.68 ha with 416 sections (plots) of 136.5 square
+  meters.
+  Row 1 has significantly less soil than the other three rows.
 
   Based on the heatmap, 'Row 1' is the left column.
 

man/harris.multi.uniformity.Rd

@@ -32,10 +32,10 @@
 
   Field length: 23 plots * 23.3 feet = 536 feet
 
-  All yields are given in pound per plot.
+  All yields here are given in pound per plot.
   The original data in Harris (1920) for the 1911 sugarbeet yields were
   in tons/ac,  (Harris 1920, table 3 footnote), but these were converted
-  to pounds/plot for the purpose of this dataset.  given in tons per acre.
+  to pounds/plot for the purpose of this dataset.
 
   Harris (1928) shows a map of the location on page 16.
 
@@ -119,12 +119,14 @@
   Jour. Agr. Res, 20, 335-356.
   https://naldc.nal.usda.gov/catalog/IND43966236
   https://www.google.com/books/edition/Journal_of_the_American_Society_of_Agron/Zwz0AAAAMAAJ?hl=en&gbpv=1&pg=PA257
+  This has the data for 1911-1919.
 
   Harris, J Arthur and Scofield, CS. (1928).
   Further studies on the permanence of differences in the plots of an
   experimental field.
   Jour. Agr. Res, 36, 15--40.
   https://naldc.nal.usda.gov/catalog/IND43967538
+  This has the data for 1920-1925.
 }
 
 \examples{