The main features of the Calibration Curve Computing (CCC) Software, a tool for regression analysis developed at the INRIM, the Italian National Metrology Institute, are described in this paper. The first release of the software tool, version 1.3, has been available on the INRIM website for free download since 2015. It was developed under a Matlab environment and distributed as an executable file. The software tool featured a friendly graphical user interface, to encourage even non-Matlab users to use it. The software is able to perform regression fitting according to ordinary,weighted and weighted total least square models and it can be applied to datasets that can be characterized by uncertainties and covariances in both the dependent and the independent variable. The curves that can be fitted to the data are fractional polynomials with positive and negative exponents up to the fifth order. Recently, version 2.0 of the CCC Software has been developed and tested and will be upl...

中文翻译：

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校准曲线计算（CCC）软件v2.0：INRIM回归工具的新版本

本文描述了校准曲线计算（CCC）软件的主要功能，该软件是由意大利国家计量学会INRIM开发的一种用于回归分析的工具。自2015年以来，该软件工具的第一个版本1.3版已可在INRIM网站上免费下载。它是在Matlab环境下开发的，并作为可执行文件分发。该软件工具具有友好的图形用户界面，甚至可以鼓励非Matlab用户使用它。该软件能够根据普通的，加权的和加权的总最小二乘模型执行回归拟合，并且可以应用于因变量和自变量均具有不确定性和协方差特征的数据集。可以拟合到数据的曲线是分数多项式，其正负指数最高为五阶。最近，已经开发和测试了CCC软件的2.0版，并将逐步更新。