Three evaluations over time and the potato yield when applying several treatments.

data(disease)

Format

A data.frame with 21 observations on the following 7 variables.

@details

  • plots plots

  • rep rep

  • trt a factor with levels T0, T1, T2, T3, T4, T5, T6

  • E2 E2

  • E5 E5

  • E7 E7

  • yield yield

Source

Experimental data.

References

International Potato Center. CIP - Lima Peru.

Examples

library(agricolae) data(disease) str(disease)
#> 'data.frame': 21 obs. of 7 variables: #> $ plots: int 101 102 103 104 105 106 107 201 202 203 ... #> $ rep : int 1 1 1 1 1 1 1 2 2 2 ... #> $ trt : Factor w/ 7 levels "T0","T1","T2",..: 2 3 4 5 6 7 1 2 3 4 ... #> $ E2 : int 4 3 3 0 0 2 7 6 3 2 ... #> $ E5 : int 9 6 4 0 0 2 14 12 7 3 ... #> $ E7 : int 10 7 6 2 2 4 23 14 14 5 ... #> $ yield: int 16 11 24 27 28 23 11 14 18 26 ...