NOTE: This response contains a reference to a third party World Wide Web site.Microsoft is providing this information as a convenience to you. According to Halstead, Volume is the count of number of mental comparisons needed to generate a program [Menzies et al.2002]. Work fast with our official CLI. echo "Program Length:"; Hello, I did not use any Halstead Metric tools, does a third part tool, like, Resource Standard Metrics help? echo "Difficulty:"; Site Design Copyright 2003 Jones, Connors and Lamb Bjorn Reppen Bjorn Reppen. $totalops += substr_count ( $code, "/"); Calculation of Halstead metrics - Measurement of Halstead Metrics. For a software development effort, one can use the following metrics to characterize the level of complexity of developing the software: η 1 = the number of distinct operators It is quite hard to count that in language like Java, which is not procedural but object oriented. Die Halstead-Metrik ist eine 1977 von Maurice Howard Halstead vorgestellte Softwaremetrik. These are language dependent; CppDepend uses the following definitions when computing Halstead metrics for C and C++. @Salman: Halstead metrics are based on number of operators and operands. "; I am looking for free software that can be used to measure software code complexity by using the mentioned metrics. Some software measures are still not widely used in industry, despite the fact that they were defined many years ago, and some additional insights might be gained by revisiting them today with the benefit of recent lessons learned about how to analyze their design. { // now explode it into an array seperated by spaces of any length $operators[3]="/"; } Some software measures are still not widely used in industry, despite the fact that they were defined many years ago, and some additional insights might be gained by revisiting them today with the benefit of recent lessons learned about how to analyze their design. The measures were developed by the late Maurice Halstead as a means of determining a quantitative measure of complexity directly from the operators and operands in the module. The information provided by these calculators is intended for illustrative purposes only and is not intended to purport actual user-defined parameters. Halstead made the observation that metrics of the software should reflect the implementation or expression of algorithms in different languages, but be independent of their execution on a specific platform. $volume = $progLength * (log($progVoc) / log(2));   Help echo ""; Note that the -isystem option is here to avoid conflicts with gcc installations. $totalops -= substr_count ( $code, "--"); Halstead Metrics. Halstead’s metrics depends upon the actual implementation of program and its measures, which are computed directly from the operators and operands from source code, in static manner. echo "$difficulty"; It is used in several automated software metric tools, including the Microsoft Visual Studio 2010 development environment, which uses a shifted scale (0 to 100) derivative. // now we knokw total operators. $distinctops++; 1 branch 0 tags. $totalands = $totalands + substr_count ( $code, "--") + substr_count ( $code, "++"); To install Perl::Metrics::Halstead, copy and paste the appropriate command in to your terminal. $totalands = $totalands * 2; // 2 operands for each operator Halstead's Software Metrics. THE METRICS WHICH ARE CALCULATED HALSTEAD'S MEASURES DESCRIPTION OF THE AVAILABLE MEASURES THE HISTORY OF SOFTWARE METRICS REFERENCES RESTRICTIONS SEE ALSO NAME nag_metrics - NAGWare f77 Tools Metrics DESCRIPTION nag_metrics is the NAGWare f77 Tools Fortran 77 complexity measurement tool. for ($i = 0; $i // lets find distinct operators 0"); Take for example the volume metric, I suppose that is interesting for you, it basically says, that programs grow linearly with their lenght and logarithmically with its vocabulary. echo "Volume:"; Halstead complexity measures are software metrics introduced by Maurice Howard Halstead in 1977 as part of his treatise on establishing an empirical science of software development. if (substr_count ($code, $operators[$i]) > 0 )

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