Library: | graphic |
See also: | evalfd plotfd data2fd grpcp setmaskl data2fd |
Quantlet: | grfdavar | |
Description: | creates a graphical object from the variance function of a functional object fd |
Usage: | gdfvar = grfdavar(fd,evalarg,col,art,thick) | |
Input: | ||
fd | list, functional (fd) object | |
evalarg | n x 1, vector, n must equal rows(fd.ccoef) | |
col | scalar, color, parameter for setmaskl, default is 0 | |
art | scalar ,art type, parameter for setmaskl, default is 1 | |
thick | scalar, art type, parameter for setmaskl, default is 2 | |
Output: | ||
gdfvar | graphical object containing var function |
library("graphic") library("fda") y = read("dailtemp.dat") tvec=#(1:365)/365 fdb = createfdbasis("fourier", #(0,1),31,1) fdtempf31=data2fd(y,tvec,fdb) fdavarf=grfdavar(fdtempf31,grid(0,1/100,99)) di=createdisplay(1,1) show(di,1,1,fdavarf)
variance function for temperature data set is ploted