Draw a Raster Plot based on a Data Frame in R (Example Code)

set.seed(3265343)                  # Creating example data
df <- data.frame(x = rep(1:3, each = 3),
                    y = rep(1:3, 3),
                    z = round(rnorm(9), 2))
df
#   x y     z
# 1 1 1  0.08
# 2 1 2 -0.90
# 3 1 3  0.09
# 4 2 1  0.29
# 5 2 2  0.98
# 6 2 3  1.43
# 7 3 1  0.67
# 8 3 2 -0.15
# 9 3 3  0.07

set.seed(3265343) # Creating example data df <- data.frame(x = rep(1:3, each = 3), y = rep(1:3, 3), z = round(rnorm(9), 2)) df # x y z # 1 1 1 0.08 # 2 1 2 -0.90 # 3 1 3 0.09 # 4 2 1 0.29 # 5 2 2 0.98 # 6 2 3 1.43 # 7 3 1 0.67 # 8 3 2 -0.15 # 9 3 3 0.07

install.packages("raster")         # Install raster package
library("raster")                  # Load raster package

install.packages("raster") # Install raster package library("raster") # Load raster package

df_rst <- rasterFromXYZ(df)        # Transforming data frame to raster

df_rst <- rasterFromXYZ(df) # Transforming data frame to raster

plot(df_rst)                       # Creating a raster graph

plot(df_rst) # Creating a raster graph