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sitar
Growth curve analysis
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Install
install.packages('sitar')
Monthly Downloads
769
Version
1.1.1
License
GPL (>= 2)
Issues
2
Pull Requests
0
Stars
13
Forks
2
Repository
https://github.com/statist7/sitar
Maintainer
Tim Cole
Last Published
March 12th, 2019
Functions in sitar (1.1.1)
Search functions
LMSfit
Estimate LMS curves from tabulated growth reference centiles
codeplot
Plot and zap velocity outliers in growth curves
dfpower
Tabulate BIC of SITAR models by degrees of freedom and xy power transformations
plot.sitar
Plot SITAR model
predict.sitar
Predict SITAR model
apv_se
Bootstrap standard errors for SITAR peak velocity and age at peak velocity
plotclean
Plot multiple growth curves to identify outliers
getData.sitar
Extract elements of fitted SITAR models
berkeley
The Berkeley Child Guidance Study
cLMS
LMS conversion to and from z-scores
print.sitar
Print SITAR model
ukwhopt
UK-WHO growth reference including preterm
BICadj
Ways to compare SITAR models for fit
heights
Serial heights measured in 12 girls
ifun
Invert an expression defining a data transformation
getPeakTrough
Identify peaks and troughs of curve
velout
Identify outliers with abnormal velocity in growth curves
dfset
Find degrees of freedom for a natural spline curve to minimise BIC or AIC
LMS2z
Convert to/from measurement from/to z-score with growth reference
funcall
Function call with optional inverse
mplot
Plot multiple growth curves
timegap
Select equally spaced ages from a vector of ages
pdLMS
Plot frequency distributions(s) for given L, M and S values in LMS method
print.summary.sitar
Print summary of SITAR model
subsample
Sample from SITAR dataset
sitar-package
SITAR (SuperImposition by Translation And Rotation) growth curve analysis
summary.sitar
Create summary of SITAR model
sitar
Fit SITAR growth curve model
uk90
UK 1990 growth reference
recalib
Recalibrate x, y data using SITAR random effects
xaxsd
Par args xaxs and yaxs option d
who06
The WHO 2006 growth standard
xyadj
Adjust x and y variables for SITAR random effects
z2cent
Express z-scores as centile character strings for plotting
anova.sitar
Compare Likelihoods of Fitted SITAR Objects
bupdate
Update the b fixed effect to minimise the b-c random effect correlation