Plot an aerial view map (X, Y coordinates) of samples locations and optionally add a boundary polygon.

Variables to customize:

varcolX <- 1 # index of the GTD frame X coordinate
varcolY <- 2 # index of the GTD frame Y coordinate
addpolygon = TRUE # option (TRUE or FALSE) to add a polygon
titleGRAPH <- "Planta de localização" # global title of the plot

Plot an aerial view map (X, Y coordinates) of samples locations with symbol colours of a qualitative variable.

Variables to customize:

varcolX <- 1 # index of the GTD frame X coordinate
varcolY <- 2 # index of the GTD frame Y coordinate
varlistindex <- 4 # index of the GTD frame Qualitative Variable
circlesize <- 3 # size of the circle symbol
titleGRAPH <- "Representação em planta das amostras de solos" # global title of the plot
colours <- c("yellow", "red", "green", "blue", "black") # colours of each qualitative value

Plot an aerial view map (X, Y coordinates) of samples locations with symbol colours of intervals of a quantitative variable.

Variables to customize:

varcolX <- 1 # index of the GTD frame X coordinate
varcolY <- 2 # index of the GTD frame Y coordinate
varlistindex <- 4 # index of the GTD frame Quantitative Variable
circlesize <- c(1,5) # min and max size of the circle symbol
titleGRAPH <- "Representação em planta das amostras de solos" # global title of the plot
colours <- c("blue", "green", "yellow", "red")# colours of a ramp scale