recalib
(Package: sitar) :
Recalibrate x, y data using SITAR random effects
A function to recalibrate x,y data using SITAR random effects
● Data Source:
CranContrib
● Keywords:
● Alias: recalib
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BICadj
(Package: sitar) :
Ways to compare SITAR models for fit
BICadj and AICadj calculate the BIC and AIC for SITAR models, adjusting the likelihood for Box-Cox transformed y variables. varexp calculates the variance explained by SITAR models, compared to the corresponding fixed effect models.
● Data Source:
CranContrib
● Keywords: regression
● Alias: AICadj, BICadj, varexp
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A print.summary method for sitar objects.
● Data Source:
CranContrib
● Keywords:
● Alias: print.summary.sitar
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plotclean
(Package: sitar) :
Plot multiple growth curves to identify outliers
A version of mplot to plot growth curves and identify outliers. When outliers are clicked on, and if id is specified, the corresponding growth curve is highlighted. If id is not specified the selected point is highlighted. Use right-click to exit.
● Data Source:
CranContrib
● Keywords:
● Alias: plotclean
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getVarCov.sitar
(Package: sitar) :
Extract variance-covariance matrix for SITAR models
getVarCov method for sitar objects, based on getVarCov.lme.
● Data Source:
CranContrib
● Keywords:
● Alias: getVarCov.sitar
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y2plot
(Package: sitar) :
Plot with two y axes
Function to plot two y variables, y1 and y2, against a single x variable, with the y1 and y2 axes on the left and right of the plot respectively.
● Data Source:
CranContrib
● Keywords:
● Alias: y2plot
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sitar-package
(Package: sitar) :
SITAR (SuperImposition by Translation And Rotation) growth curve analysis
SITAR is a method of growth curve analysis, based on nlme, that estimates a single mean growth curve as a regression B-spline, plus a set of up to three fixed and random effects (a, b and c) defining how individual growth curves differ from the mean curve. SITAR stands for SuperImposition by Translation And Rotation.
● Data Source:
CranContrib
● Keywords: package
● Alias: sitar-package
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mplot
(Package: sitar) :
Plot multiple growth curves
Function to plot multiple growth curves indexed by subject id.
● Data Source:
CranContrib
● Keywords:
● Alias: mplot
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xaxsd
(Package: sitar) :
Par args xaxs and yaxs option d
Implements par('xaxs') and par('yaxs') option 'd'.
● Data Source:
CranContrib
● Keywords:
● Alias: xaxsd, yaxsd
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getCovariate.sitar
(Package: sitar) :
Extract Covariate from a SITAR object
getCovariate method for sitar objects.
● Data Source:
CranContrib
● Keywords:
● Alias: getCovariate.sitar
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providing 
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