ge_plot function

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.

ge_plot(
  .data,
  env,
  gen,
  resp,
  type = 1,
  values = TRUE,
  text_col_pos = c("top", "bottom"),
  text_row_pos = c("left", "right"),
  average = TRUE,
  row_col = TRUE,
  row_col_type = c("average", "sum"),
  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.

• row_col, row_col_type: Shows row/column and defines what to show. Defaults to 'average'.

• 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.

Returns

An object of class gg, ggplot.

Examples

library(metan)
ge_plot(data_ge2, ENV, GEN, PH)
ge_plot(data_ge, ENV, GEN, GY, type = 2)

Author(s)

Tiago Olivoto tiagoolivoto@gmail.com