SVILD: Summaries of Variability of Irregularly Spaced Longitudinal...

In SVILD: Summaries of Variability of Irregularly Spaced Longitudinal Data

Description

Read raw data into R and create a list to store all variables of patients

Usage

	SVILD(id, ...)

	## Default S3 method:
SVILD(id, time,y, timeFormat = "%d%b%y:%H:%M:%S", ...)
	## S3 method for class 'SVILD'
print(x, ...)
	## S3 method for class 'SVILD'
summary(object, ...)
	## S3 method for class 'SVILD'
plot(object, n=12, ...)

Arguments

id	a numeric vector of patients.
time	a date time vector.
y	a numeric vector of response glucose.
timeFormat	format of date time used.
object	an object of class SVILD.
n	number of patients plotted.
x	an object
...	not used.

Value

An object of class is a list including basic elements:

ID	unique ID
y	response y
lag.y	lagged y values
diff.y	difference between two sequence time
fmttime	formatted date time
time	rescaled number of time
lag.time	lagged time
diff.time	difference between two sequence time

Note

Additional indices will add soon

Author(s)

Dongsheng Yang, Anne S. Tang

Examples

id = c(17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 21, 21, 21, 21, 21, 21, 21, 
30, 30, 30, 30, 30, 30, 30)

y = c(110, 137, 142, 129, 102, 113, 195, 168, 192, 156, 178, 186, 116, 105, 
111, 86, 113, 115, 106, 113, 115, 106, 97, 103)
	  
time = c("05JUL07:15:10:00", "05JUL07:16:15:00", "05JUL07:17:15:00", 
"05JUL07:18:15:00", "05JUL07:19:15:00", "05JUL07:20:00:00", "05JUL07:21:10:00", 
"05JUL07:21:40:00", "05JUL07:22:10:00", "05JUL07:22:40:00", "10MAY07:08:15:00", 
"10MAY07:09:15:00", "10MAY07:10:15:00", "10MAY07:10:30:00", "10MAY07:11:00:00", 
"10MAY07:11:30:00", "10MAY07:12:20:00", "12JUL07:08:15:00", "12JUL07:08:20:00", 
"12JUL07:09:15:00", "12JUL07:09:20:00", "12JUL07:10:15:00", "12JUL07:10:20:00", 
"12JUL07:11:10:00")
	
mylist = SVILD(id = id, time = time, y = y, timeFormat = "%d%b%y:%H:%M:%S")
print(mylist)
summary(mylist)
plot(mylist, n = 5)

SVILD documentation built on May 2, 2019, 5:56 p.m.