**The Matlab application ASIRA: operational structure and technical notes.**

ASIRA is an acronym of Automated System of InfraRed Analysis and consists of Matlab© code subdivided into five independent processing steps (step01.m, step02.m, step03.m, step04.m, step05.m) that can be easily managed by a graphic user interface (asira\_gui.m). Moreover, additional Matlab© scripts and libraries are needed to ASIRA functionalities. Figure A1 shows screen-captures of different tabs of the graphics interface representative of five processing steps and automation settings.


**Figure A1.** Tabs of the Automated System of InfraRed Analysis (ASIRA) graphics interface representative of five processing steps and automation settings. Numbers inside the red circles are the IDs reported in the technical sheets of Appendix A.

Below are reported synthetic technical sheets of functionalities and type of input and output data of the different processing steps and of the graphic user interface.

**Table A1.** Technical specifications of functionality and input/output data type of graphic interface.


#### **Table A2.** Technical specifications of functionality and input/output data type of STEP 1.


**Table A3.** Technical specifications of functionality and input/output data type of STEP 2.


#### **Table A4.** Technical specifications of functionality and input/output data type of STEP 3.


**Table A5.** Technical specifications of functionality and input/output data type of STEP 4.



**Table A6.** Technical specifications of functionality and input/output data type of STEP 5.

Although the processing steps can be managed separately, the processing chain needs data to be analyzed by the first three steps in sequential way. The Operative Manual of ASIRA is available as Supplementary Materials together with Matlab© scripts and Open Source Toolboxes and functions. Matlab© scripts code is widely commented in order to understand the features and the functionality.

#### **References**


© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
