Graphical analysis of genotype-vs-environment interaction

This function produces a line plot for a graphical interpretation of the genotype-vs-environment interaction. By default, environments are in the x axis whereas the genotypes are depicted by different lines. The y axis contains the value of the selected variable. A heatmap can also be created.

Usage

ge_plot(
  .data,
  env,
  gen,
  resp,
  type = 1,
  values = TRUE,
  text_col_pos = c("top", "bottom"),
  text_row_pos = c("left", "right"),
  average = TRUE,
  order_g = NULL,
  order_e = NULL,
  xlab = NULL,
  ylab = NULL,
  width_bar = 1.5,
  heigth_bar = 15,
  plot_theme = theme_metan(),
  colour = TRUE
)

Arguments

.data: The dataset containing the columns related to Environments, Genotypes, replication/block and response variable(s).
env: The name of the column that contains the levels of the environments
gen: The name of the column that contains the levels of the genotypes.
resp: The response variable.
type: The type of plot type = 1 for a heatmap or type = 2 for a line plot.
values: Show the values in the plot? Defaults to TRUE.
text_row_pos, text_col_pos: The position of the text in the rows and columns. The defaults show the text at left and top.
average: Show the average values for environments and genotypes? Defaults to TRUE.
order_g, order_e: A charactere vector indicating the order of the levels for genotypes and environments, respectively. This can be used to change the default ordering of rows and columns.
xlab, ylab: The labels for x and y axis, respectively.
width_bar, heigth_bar: The width and heigth of the legend bar, respectively.
plot_theme: The graphical theme of the plot. Default is plot_theme = theme_metan(). For more details,see ggplot2::theme().
colour: Logical argument. If FALSE then the plot will not be colored.

Value

An object of class gg, ggplot.

Author

Tiago Olivoto tiagoolivoto@gmail.com

Examples

# \donttest{
library(metan)
ge_plot(data_ge2, ENV, GEN, PH)

ge_plot(data_ge, ENV, GEN, GY, type = 2)

# }