plot.residuals.dfrr: QQ-plot for dfrr residuals
In asgari-fatemeh/dfrr: Dichotomized Functional Response Regression

The output gives the qq-plot of estimated measurment error.

## S3 method for class 'residuals.dfrr'
plot(x, ...)

## S3 method for class 'dfrr'
qq(x, ...)

`x`	a `residuals.dfrr`-object.
`...`	graphical parameters passed to `car::qqPlot`

N<-50;M<-24

X<-rnorm(N,mean=0)
time<-seq(0,1,length.out=M)
Y<-simulate_simple_dfrr(beta0=function(t){cos(pi*t+pi)},
                        beta1=function(t){2*t},
                        X=X,time=time)
dfrr_fit<-dfrr(Y~X,yind=time)

resid<-residuals(dfrr_fit)
plot(resid)
#qq(dfrr_fit)