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#function to do exploratory data analysis of object array
#histogram, boxplot, density and quartile plots constructed
"eda.shape" = function(x,qq=TRUE,main=NULL,xlab,...)
{
oldpar<-par(no.readonly = TRUE) #get current plot parameters
on.exit(par(oldpar))
par(mfrow = c(2, 2))
#extract name of array as default label
#ann=FALSE will suppress labels in boxplot
nm<- deparse(substitute(x))
# to suppress main, x, y label defaults pass ann=FALSE at call
if(is.null(main))main=""# to prevent default main titles, explicitly provide null string
lhist<-function(...,notch,axes,log,ylab,ylim,cex.label,frame.plot) hist(...)
lboxplot<-function(...,axes,log,xlab,xlim,cex.label) boxplot(...)
lplot<-function(...,notch,axes,ylab,cex.label,frame.plot) plot(...)
lqqnorm<-function(...,notch,xlab,ylab,log,axes,xlim,ylim,cex.label) qqnorm(...)
if(missing(xlab))
lhist(x,main=main,xlab=nm,...)
else
lhist(x,main=main,xlab=xlab,...)
if(missing(xlab))
lboxplot(x, main=main,ylab=nm,plot = TRUE,border=1,
staplelty = 1, staplewex = 1,
staplehex = 1, outchar = TRUE, outpch = NA, outline = TRUE, outwex
= 1,...)
else
lboxplot(x,main=main,ylab=xlab,plot = TRUE,border=1,
staplelty = 1, staplewex = 1,
staplehex = 1, outchar = TRUE, outpch = NA, outline = TRUE, outwex
= 1,...)
iqd <- summary(x)[5] - summary(x)[2] #interquartile range ... not used
if(missing(xlab))
lplot(density(x,na.rm = TRUE),main=main,xlab=nm,...)
else
lplot(density(x,na.rm = TRUE),main=main,xlab=xlab,...)
if(qq){lqqnorm(x,main=main,...)}
if(qq){qqline(x)}
invisible()
}
#function to spit out summary stats, skewness and kurtosis
"eda.stats" = function(x)
{
summary<-summary(x)
skew<-timeDate::skewness(x)#point to timeDate function for skew and kurtosis
kurt<-timeDate::kurtosis(x)
return(list("summary"=summary,"skew"=skew,"kurt"=kurt))
}
#function to do quantiles for 0.001 to 0.999
#and return interquartile range
"quart" = function(x)
{
q<-quantile(x, c(0.001, 0.01, 0.05, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7,
0.8, 0.9, 0.95, 0.99, 0.999))
d<-diff(quantile(x, c(.25, .75)))
return(list("quantiles"=q,"inter"=d))
}
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