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TIMP

swMATH ID: 7964
Software Authors:
Description: TIMP: an R package for modeling multi-way spectroscopic measurements. TIMP is an R package for modeling multiway spectroscopic measurements. The package allows for the simultaneous analysis of datasets collected under different experimental conditions in terms of a wide variety of parametric models. Models arising in spectroscopy data analysis often have some parameters that are intrinstically nonlinear, and some parameters that are conditionally linear on estimates of the nonlinear parameters. TIMP fits such separable nonlinear models using partitioned variable projection, a variant of the variable projection algorithm that is described here for the first time. The of the partitioned variable projection algorithm allows fitting many models for spectroscopy datasets using much less memory as compared to under the standard variable projection algorithm that is implemented in nonlinear optimization routines (e.g., the plinear option of the R function nls), as is shown here. An overview of modeling with TIMP is also given that includes several case studies in the application of the package.
Homepage: http://cran.r-project.org/web/packages/TIMP/index.html
Source Code:  https://github.com/cran/TIMP
Dependencies: R
Related Software: R; KS1SidedOneSample; Maple; ExactKS2SidedOneSample; Mathematica; EBayesThresh; ggplot2; simode; Schittkowski; MASS (R); CRAIG; LSQR; ImpuR; spectrino; FluxSimulator; rpubchem; rcdk; amsrpm; mclust; VOStat
Cited in: 3 Documents

Standard Articles

2 Publications describing the Software Year
Fluorescence Lifetime Imaging Microscopy (FLIM) Data Analysis with TIMP Link
Sergey Laptenok; Katharine Mullen; Jan Borst; Ivo van Stokkum; Vladimir Apanasovich; Antonie Visser
2007
TIMP: An R Package for Modeling Multi-way Spectroscopic Measurements Link
Katharine Mullen; Ivo van Stokkum
2007

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