fviz_add {factoextra}

Add supplementary data to a plot

Description

Add supplementary data to a plot

Usage

fviz_add(
  ggp,
  df,
  axes = c(1, 2),
  geom = c("point", "arrow"),
  color = "blue",
  addlabel = TRUE,
  labelsize = 4,
  pointsize = 2,
  shape = 19,
  linetype = "dashed",
  repel = FALSE,
  font.family = "",
  ...
)

Arguments

ggp

a ggplot2 plot.

df

a data frame containing the x and y coordinates

axes

a numeric vector of length 2 specifying the components to be plotted.

geom

a character specifying the geometry to be used for the graph Allowed values are "point" or "arrow" or "text"

color

the color to be used

addlabel

a logical value. If TRUE, labels are added

labelsize

the size of labels. Default value is 4

pointsize

the size of points

shape

point shape when geom ="point"

linetype

the linetype to be used when geom ="arrow"

repel

a boolean, whether to use ggrepel to avoid overplotting text labels or not.

font.family

character vector specifying font family.

...

Additional arguments, not used

Value

a ggplot2 plot

Author(s)

Alboukadel Kassambara [e-mail]

References

http://www.sthda.com

Examples

# Principal component analysis
data(decathlon2)
decathlon2.active <- decathlon2[1:23, 1:10]
res.pca <- prcomp(decathlon2.active,  scale = TRUE)

# Visualize variables
p <- fviz_pca_var(res.pca)
print(p)

# Add supplementary variables
coord <- data.frame(PC1 = c(-0.7, 0.9), PC2 = c(0.25, -0.07))
rownames(coord) <- c("Rank", "Points")
print(coord)
fviz_add(p, coord, color ="blue", geom="arrow")