diff --git a/R/ZimmermannTb5.2.R b/R/ZimmermannTb5.2.R
index 047ad97a63106c62caf1930dada90ca1abe0fad3..f4bc85c6ac7e68c380af6db7c8b5cd55e74141bd 100644
--- a/R/ZimmermannTb5.2.R
+++ b/R/ZimmermannTb5.2.R
@@ -1,5 +1,5 @@
 #' @name ZimmermannTb5.2
-#' @title Dados de produção de grãos de arroz
+#' @title Produção de Grãos de Genótipos de Arroz
 #' @description Experimento em delineamento quadrado latino cujo
 #'     objetivo foi medir a resposta em produtividade de um grupo de
 #'     oito genótipos de arroz ao ataque inicial de pragas.
@@ -31,7 +31,6 @@
 #' data(ZimmermannTb5.2)
 #'
 #' str(ZimmermannTb5.2)
-#' ZimmermannTb5.2 <- transform(ZimmermannTb5.2, geno = factor(geno))
 #'
 #' cast(ZimmermannTb5.2, linha ~ coluna, value = "geno")
 #' cast(ZimmermannTb5.2, linha ~ coluna, value = "prod")
diff --git a/data-raw/ZimmermannTb5.2.txt b/data-raw/ZimmermannTb5.2.txt
index 4e5c9ee07eb5955747fbd10ccc65679f57c1c945..38ed92795e1e18c9e5ba3922da0b0d2bbac2bf5f 100644
--- a/data-raw/ZimmermannTb5.2.txt
+++ b/data-raw/ZimmermannTb5.2.txt
@@ -1,64 +1,64 @@
-linha	coluna	prod	geno
-2	1	618.75	B
-3	1	1176.25	C
-4	1	852.5	D
-5	1	700	E
-6	1	1003.75	F
-7	1	1395	G
-8	1	1991.3	H
-1	2	1481.25	D
-2	2	1251.25	E
-3	2	1742.5	F
-4	2	1680	G
-5	2	1897.5	H
-6	2	1726.25	A
-7	2	313.75	B
-8	2	1427.5	C
-1	3	586.25	G
-2	3	822.5	H
-3	3	748.75	A
-4	3	317.5	B
-5	3	1096.25	C
-6	3	2148.75	D
-7	3	1543.75	E
-8	3	936.25	F
-1	4	708.75	C
-2	4	846.25	D
-3	4	716.25	E
-4	4	1038.75	F
-5	4	945	G
-6	4	855	H
-7	4	1421.25	A
-8	4	307.5	B
-1	5	1193.75	F
-2	5	1051.25	G
-3	5	952.5	H
-4	5	1326.25	A
-5	5	216.25	B
-6	5	487.5	C
-7	5	1627.5	D
-8	5	1202.5	E
-1	6	825	E
-2	6	1070	F
-3	6	1470	G
-4	6	1250	H
-5	6	1767.5	A
-6	6	237.5	B
-7	6	1367.5	C
-8	6	1395	D
-1	7	1856.25	H
-2	7	1126.25	A
-3	7	377.5	B
-4	7	962.5	C
-5	7	1682.5	D
-6	7	1198.75	E
-7	7	1283.75	F
-8	7	995	G
-1	8	697.5	B
-2	8	1301.25	C
-3	8	1162.5	D
-4	8	738.75	E
-5	8	1416.25	F
-6	8	1498.75	G
-7	8	1728.75	H
-8	8	1335	A
+linha	coluna	geno	prod
+2	1	B	618.75
+3	1	C	1176.25
+4	1	D	852.5
+5	1	E	700
+6	1	F	1003.75
+7	1	G	1395
+8	1	H	1991.3
+1	2	D	1481.25
+2	2	E	1251.25
+3	2	F	1742.5
+4	2	G	1680
+5	2	H	1897.5
+6	2	A	1726.25
+7	2	B	313.75
+8	2	C	1427.5
+1	3	G	586.25
+2	3	H	822.5
+3	3	A	748.75
+4	3	B	317.5
+5	3	C	1096.25
+6	3	D	2148.75
+7	3	E	1543.75
+8	3	F	936.25
+1	4	C	708.75
+2	4	D	846.25
+3	4	E	716.25
+4	4	F	1038.75
+5	4	G	945
+6	4	H	855
+7	4	A	1421.25
+8	4	B	307.5
+1	5	F	1193.75
+2	5	G	1051.25
+3	5	H	952.5
+4	5	A	1326.25
+5	5	B	216.25
+6	5	C	487.5
+7	5	D	1627.5
+8	5	E	1202.5
+1	6	E	825
+2	6	F	1070
+3	6	G	1470
+4	6	H	1250
+5	6	A	1767.5
+6	6	B	237.5
+7	6	C	1367.5
+8	6	D	1395
+1	7	H	1856.25
+2	7	A	1126.25
+3	7	B	377.5
+4	7	C	962.5
+5	7	D	1682.5
+6	7	E	1198.75
+7	7	F	1283.75
+8	7	G	995
+1	8	B	697.5
+2	8	C	1301.25
+3	8	D	1162.5
+4	8	E	738.75
+5	8	F	1416.25
+6	8	G	1498.75
+7	8	H	1728.75
+8	8	A	1335
diff --git a/data/ZimmermannTb5.2.rda b/data/ZimmermannTb5.2.rda
index 0b584c04a4d21ea4ee1f01056eb03bdacaadfd96..de11e6eb442cb8fcf2dcb3aca7601f406ec9a8a2 100644
Binary files a/data/ZimmermannTb5.2.rda and b/data/ZimmermannTb5.2.rda differ