diff --git a/data-raw/ZimmermannTb12.1.txt b/data-raw/ZimmermannTb12.1.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e69c4ed8d1717b635cd4098fd75823179abf4683
--- /dev/null
+++ b/data-raw/ZimmermannTb12.1.txt
@@ -0,0 +1,43 @@
+trat	rept	prod
+CNA 7830	1	7012
+CNA 8502	1	6957
+CNA 8540	1	5738
+Epagri 108	1	7016
+Formoso	1	7471
+Metica 1	1	8120
+Supremo 1	1	6489
+CNA 7830	2	7348
+CNA 8502	2	7865
+CNA 8540	2	5554
+Epagri 108	2	6783
+Formoso	2	6892
+Metica 1	2	7894
+Supremo 1	2	6188
+CNA 7830	3	6894
+CNA 8502	3	6767
+CNA 8540	3	5848
+Epagri 108	3	7807
+Formoso	3	7517
+Metica 1	3	7181
+Supremo 1	3	6148
+CNA 7830	4	7108
+CNA 8502	4	7164
+CNA 8540	4	5370
+Epagri 108	4	6466
+Formoso	4	7773
+Metica 1	4	7052
+Supremo 1	4	6285
+CNA 7830	5	6833
+CNA 8502	5	6064
+CNA 8540	5	5811
+Epagri 108	5	6691
+Formoso	5	7544
+Metica 1	5	7654
+Supremo 1	5	6528
+CNA 7830	6	6587
+CNA 8502	6	6742
+CNA 8540	6	5554
+Epagri 108	6	6966
+Formoso	6	7280
+Metica 1	6	7814
+Supremo 1	6	6217
diff --git a/data-raw/ZimmermannTb12.2.txt b/data-raw/ZimmermannTb12.2.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cda30b60ec9276ec3cfd6cf3d68e52108c65c4a5
--- /dev/null
+++ b/data-raw/ZimmermannTb12.2.txt
@@ -0,0 +1,43 @@
+trat	rept	prod
+CNA 7830	1	7660
+CNA 8502	1	7084
+CNA 8540	1	5988
+Epagri 108	1	6520
+Formoso	1	7233
+Metica 1	1	6832
+Supremo 1	1	5920
+CNA 7830	2	6205
+CNA 8502	2	7334
+CNA 8540	2	6616
+Epagri 108	2	6162
+Formoso	2	6922
+Metica 1	2	7268
+Supremo 1	2	6132
+CNA 7830	3	6173
+CNA 8502	3	7227
+CNA 8540	3	6357
+Epagri 108	3	6535
+Formoso	3	6886
+Metica 1	3	7177
+Supremo 1	3	6868
+CNA 7830	4	7395
+CNA 8502	4	8120
+CNA 8540	4	5138
+Epagri 108	4	7697
+Formoso	4	6482
+Metica 1	4	5971
+Supremo 1	4	6422
+CNA 7830	5	6504
+CNA 8502	5	7857
+CNA 8540	5	5581
+Epagri 108	5	6617
+Formoso	5	6563
+Metica 1	5	7475
+Supremo 1	5	6039
+CNA 7830	6	6770
+CNA 8502	6	6592
+CNA 8540	6	4953
+Epagri 108	6	6838
+Formoso	6	8033
+Metica 1	6	6830
+Supremo 1	6	5724
diff --git a/data-raw/ZimmermannTb3.12.txt b/data-raw/ZimmermannTb3.12.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a1e8f6d168c949d7658d9d5b3e5bee6076d58551
--- /dev/null
+++ b/data-raw/ZimmermannTb3.12.txt
@@ -0,0 +1,76 @@
+trat	planta	vaso	prod
+1	1	1	2.17
+2	1	1	3.26
+3	1	1	0.99
+4	1	1	0.83
+5	1	1	1.57
+1	2	1	1.63
+2	2	1	1.27
+3	2	1	0.32
+4	2	1	0.93
+5	2	1	1.07
+1	3	1	4.69
+2	3	1	1.21
+3	3	1	0.02
+4	3	1	0.58
+5	3	1	0.48
+1	1	2	0.99
+2	1	2	2.19
+3	1	2	1.37
+4	1	2	0.36
+5	1	2	1.3
+1	2	2	2.21
+2	2	2	2.44
+3	2	2	1.27
+4	2	2	2.38
+5	2	2	1.11
+1	3	2	2.04
+2	3	2	1.13
+3	3	2	1.1
+4	3	2	3.97
+5	3	2	1.35
+1	1	3	2.32
+2	1	3	3.22
+3	1	3	0.64
+4	1	3	3.57
+5	1	3	1.88
+1	2	3	1.49
+2	2	3	2.95
+3	2	3	0.58
+4	2	3	1.62
+5	2	3	1.13
+1	3	3	3.63
+2	3	3	1.92
+3	3	3	0.98
+4	3	3	4.5
+5	3	3	0.92
+1	1	4	2.51
+2	1	4	1.34
+3	1	4	0.87
+4	1	4	2.18
+5	1	4	1.39
+1	2	4	3.76
+2	2	4	2.1
+3	2	4	0.47
+4	2	4	3.51
+5	2	4	1
+1	3	4	4.33
+2	3	4	1.37
+3	3	4	0.55
+4	3	4	2.91
+5	3	4	2.01
+1	1	5	3.36
+2	1	5	3.23
+3	1	5	0.34
+4	1	5	0.55
+5	1	5	1.35
+1	2	5	3.63
+2	2	5	1.15
+3	2	5	0.86
+4	2	5	0.43
+5	2	5	1.86
+1	3	5	2.37
+2	3	5	1.14
+3	3	5	2
+4	3	5	0.61
+5	3	5	2.63
diff --git a/data-raw/ZimmermannTb3.2.1.txt b/data-raw/ZimmermannTb3.2.1.txt
new file mode 100644
index 0000000000000000000000000000000000000000..52a4806ffc0a7d2ad78abe4a7468d2f70de4da47
--- /dev/null
+++ b/data-raw/ZimmermannTb3.2.1.txt
@@ -0,0 +1,33 @@
+trat	rept	prod
+1	1	6276
+2	1	7199
+3	1	6457
+4	1	7202
+1	2	6035
+2	2	6890
+3	2	6174
+4	2	7173
+1	3	6086
+2	3	6586
+3	3	6612
+4	3	7169
+1	4	5594
+2	4	7149
+3	4	6087
+4	4	6590
+1	5	6321
+2	5	6657
+3	5	5797
+4	5	6444
+1	6	6746
+2	6	6210
+3	6	5865
+4	6	6740
+1	7	5751
+2	7	6128
+3	7	6498
+4	7	6370
+1	8	6191
+2	8	6393
+3	8	6486
+4	8	7270
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