| gamSim {mgcv} | R Documentation |
Function used to simulate data sets to illustrate the use of
gam and gamm. Mostly used in help files to keep down
the length of the example code sections.
gamSim(eg=1,n=400,dist="normal",scale=2)
eg |
numeric value specifying the example required. |
n |
number of data to simulate. |
dist |
character string which may be used to spcify the distribution of the response. |
scale |
Used to set noise level. |
See the source code for exactly what is simulated in each case.
Gu and Wahba 4 univariate term example.
A smooth function of 2 variables.
Example with continuous by variable.
Example with factor by variable.
An additive example plus a factor variable.
Additive + random effect.
As 1 but with correlated covariates.
Depends on eg, but usually a dataframe, which may also contain some information on
the underlying truth. Sometimes a list with more items, including a data frame for model fitting.
See source code or helpfile examples where the function is used for further information.
Simon N. Wood simon.wood@r-project.org
## see ?gam