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sitar
Growth curve analysis
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Install
install.packages('sitar')
Monthly Downloads
684
Version
1.1.2
License
GPL (>= 2)
Issues
2
Pull Requests
0
Stars
13
Forks
2
Repository
https://github.com/statist7/sitar
Maintainer
Tim Cole
Last Published
February 17th, 2020
Functions in sitar (1.1.2)
Search functions
codeplot
Plot and zap velocity outliers in growth curves
berkeley
The Berkeley Child Guidance Study
apv_se
Bootstrap standard errors for SITAR peak velocity and age at peak velocity
anova.sitar
Compare Likelihoods of Fitted SITAR Objects
mplot
Plot multiple growth curves
cLMS
LMS conversion to and from z-scores
cdc2000
The CDC 2000 growth reference
BICadj
Ways to compare SITAR models for fit
funcall
Function call with optional inverse
bupdate
Update the b fixed effect to minimise the b-c random effect correlation
LMSfit
Estimate LMS curves from tabulated growth reference centiles
getData.sitar
Extract elements of fitted SITAR models
getPeakTrough
Identify peak or trough on curve
pdLMS
Plot frequency distributions(s) for given L, M and S values in LMS method
dfset
Find degrees of freedom for a natural spline curve to minimise BIC or AIC
dfpower
Tabulate BIC of SITAR models by degrees of freedom and xy power transformations
LMS2z
Convert to/from measurement from/to z-score with growth reference
predict.sitar
Predict SITAR model
heights
Serial heights measured in 12 girls
subsample
Sample from SITAR dataset
xyadj
Adjust x and y variables for SITAR random effects
print.sitar
Print SITAR model
sitar
Fit SITAR growth curve model
sitar-package
SITAR (SuperImposition by Translation And Rotation) growth curve analysis
plot.sitar
Plot SITAR model
timegap
Select equally spaced ages from a vector of ages
summary.sitar
Create summary of SITAR model
plotclean
Plot multiple growth curves to identify outliers
xaxsd
Par args xaxs and yaxs option d
z2cent
Express z-scores as centile character strings for plotting
who0607
The WHO 2006 growth standard and WHO 2007 growth reference
ukwhoterm
UK-WHO growth reference omitting preterm data
ukwhopt
UK-WHO growth reference including preterm
velout
Identify outliers with abnormal velocity in growth curves
ifun
Invert an expression defining a data transformation
print.summary.sitar
Print summary of SITAR model
recalib
Recalibrate x, y data using SITAR random effects
iotf
IOTF international body mass index reference
who06
The WHO 2006 growth standard
uk90
UK 1990 growth reference