Monitoring physical activity and other factors of the patients after
administrating anesthesia is important because it can have several
effects on the body. It is also necessary to detect the time points when
the values of these variables change. In general, the total anesthesia
period is clinically divided into many phases, where the large deviation
of the values within same phase is frequently observed, specially in
pediatric patient data. The goal of varifinder is to calculate the
variability ratio index (VARI) to evaluate clinical phases in retrospective
data.
You can install the development version of varifinder from GitHub with: (noormuhammadkhan)
# install.packages("devtools")
devtools::install_github("noormuhammadkhan/varifinder")This is a basic example which shows you how to solve a common problem:
library(varifinder)
# Prepare a dummy data set
variable <- rnorm(100, 50, 5)
time <- c(seq(1,30), seq(1, 40), seq(1,20), seq(1,10))
phase <- rep(factor(c(1, 2, 3, 4)), c(30, 40, 20, 10))
# Identify the VARI
varifinder(variable, phase, time)