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R package. Fit unidimensional item response theory (IRT) models to mixture of dichotomous and polytomous data, calibrate online item parameters, estimate examinees' latent abilities, and examine the IRT model-data fit on item-level in different ways as well as provide useful functions related to unidimensional IRT.
RStudio IDE (or RStudio) is an integrated development environment for R, a programming language for statistical computing and graphics. It is available in two formats: RStudio Desktop is a regular desktop application while RStudio Server runs on a remote server and allows accessing RStudio using a web browser.
XLfit is a Microsoft Excel add-in that can perform regression analysis, curve fitting, and statistical analysis. It is approved by the UK National Physical Laboratory and the US National Institute of Standards and Technology [ 1 ] XLfit can generate 2D and 3D graphs and analyze data sets.
Genedata – software for integration and interpretation of experimental data in the life science R&D; GenStat – general statistics package; GLIM – early package for fitting generalized linear models; GraphPad InStat – very simple with much guidance and explanations; GraphPad Prism – biostatistics and nonlinear regression with clear ...
IGOR Pro is a scientific data analysis software, numerical computing environment and programming language that runs on Windows or Mac operating systems. It is developed by WaveMetrics Inc., and was originally aimed at time series analysis, but has since then evolved and covers other applications such as curve fitting and image processing.
[21] JMP 9 in 2010 added a new interface for using the R programming language from JMP and an add-in for Excel. [22] [23] The main screen was rebuilt and enhancements were made to simulations, graphics and a new Degradation platform. [24] In March 2012, version 10 made improvements in data mining, predictive analytics, and automated model building.
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Data filtering: Use either R code or a drag-and-drop GUI to select cases of interest. Full data editing with one-click recoding; full undo / redo functionality, Compute columns via R code (e.g. via row-wise functions like rowMean, rowMeanNaRm, rowSum, rowSD ...) or a drag-and-drop GUI to create new variables or compute them from existing ones.