Zuur: Chapter 5: An Introduction To Basic Plotting Tools

 

Plot Function

-          plot(Veg$BARESOIL, Veg$R)

o   1^st arg : horizontal, 2^nd arg: vertical

-          plot( x =   ,  y =   )

-          additional arguments

o   ylab, xlab, main, xlim, max

 

 

Symbols , Colours and Sizes

 

-          pch

 

 

-          Use of vector for pch

o   [come back to this]

 

-          changing colour of plotting symbols

 

o   use of a vector for col

 

-          altering size of plotting symbols

 

 

 

Adding a smoothing line

 

plot( x = Veg$BARESOIL, y = Veg$R, xlab = "Exposed soil", ylab = " Species richness", main = "Scatter Plot", xlim = c(0,45), ylim = c(4,19))

> M.Loess <- loess (R ~ BARESOIL, data = Veg)

> Fit <- fitted(M.Loess)

> lines(Veg$BARESOIL, Fit)