NCA Software
The NCA software is free software that can be used with the free programming language R.
======VERSION 3.3.3 is available======
The main NCA specific functions are nca_analysis for conducting NCA, nca_output for printing and plotting results of the analysis, and nca_outliers for evaluating potential outliers. More information can be found on https://bookdown.org/ncabook/advanced_nca2/.
If you have installed an older version of the NCA package you can update the package as follows:
update.packages("NCA")
The NCA package uses other packages. It is possible that these packages are not installed on your computer. In that case the following error message may appear: 'There is no package called …' , where … corresponds to the name of the missing package. You then need to install the specific packages first.
install.packages("…")
If you install the package for the first time: see the Quick Start Guide. A novice user without knowledge of R or NCA can install the software on the user’s computer and perform an NCA analysis within 15 minutes.
The Quick Start Guide and a demonstration shows how NCA can be done in three steps.
The software draws ceiling lines and produces several NCA parameters (including necessity effect size). An example is shown here.
A video explanation of the bottleneck table , and a video demonstration on how to produce the bottleneck table with the NCA software are available.