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issue134:recherches_avec_linux

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The core of any clinical research: is this hypothesis statistically significant? I am not a biostatistician, but I am often asked for basic statistics such as standard deviation, mean, and intraclass correlation coefficient. I have a Perl batch program that fulfills these demands. However, I am limited by the batch program. I only can generate simple tables, and no graphs.

There are commercial resources like Mathematica and Matlab that can develop a deeper analysis for research data sets. Yet yearly licenses and vendor contacts are required for these products. There are two other programs available: R and Gnuplot for Linux users.

R is the continuation of a math programming code called S. It is a full language used by statisticians. It is hailed as one of the easiest and most robust languages to learn and implement for work streams. Numerous people are learning this language. Further information can be found here: https://www.r-project.org/

Gnuplot is a command line tool that can generate tables and graphs. Gnuplot does not qualify for a totally free and open software. It is free to use, but in the same vein it is similar to Vanderbilt’s REDCap. It is a closed software tool, but any researcher can use it. When I first used Linux Mint, I attempted to use a front end graphical program of Gnuplot. Yet it was not very reliable nor stable. I recently became owner to a book titled Gnuplot in Action: Understanding Data with Graphs. I am hoping that my line of research in motion capture and pressure can be turned into graphs instead of tables. I review low back pain in the lumbar region and other pelvic landmarks such as the sacrum and pubic tubercles.

The motion data is generated as a comma separated value file. The pressure is a tab separated value file. I often blend these two files into one “mega file” that I process into generate a database. I will attempt to utilize the book, and see if i can apply it to my research line.

issue134/recherches_avec_linux.1530449986.txt.gz · Dernière modification : 2018/07/01 14:59 de auntiee