For the more complex case shown later, this will be essential. What we have here is the 2 for 360 degrees, which may depend on what one tries to achieve. T_map = linspace(0,lines*pi*2,lines*degrees*2) Now, let us generate some linear, equally-spaced points: The following sets some values of interest:
#GNU OCTAVE LFAT CODE#
Here are some code samples for those trying to achieve it. Of possible commands.Ccasionally, in numerical programming, one may wish to plot or instantiate a grid of a circular (or spiral) nature. That can be used to explore the call-tree. Profile ( "info"), this command opens an interactive prompt Interactively explore hierarchical profiler output.Īssuming data is the structure with profile data returned by
The attribute column shows ‘ R’ for recursive functions and nothingįunction File: profexplore () Function File: profexplore ( data) Than n included in the profile, those will not be shown. Sorted in descending order by total time spent in them. Specifies the number of functions to show in the profile functions are This command prints out profiler data as a flat profile. Furthermore, it is shown how often the function was calledĪnd the profiler also records that it is recursive.įunction File: profshow ( data) Function File: profshow ( data, n) ‘ myfib’, and some minor proportion evaluating the listed binary This shows that most of the run time was spent executing the function Profile as input and prints a flat profile, for instance: This function takes the profiler data returned by Has an index into the FunctionTable identifying the function itĬorresponds to as well as data fields for number of calls and time spentĪn easy way to get an overview over the collected data is Hierarchical contains the hierarchical call-tree. The flat profile is returned in the field FunctionTable which is anĪrray of structures, each entry corresponding to a function which was calledĪnd for which profiling statistics are present. Return the collected profiling statistics in the structure T.
At the moment, the only field is ProfilerStatus Return a structure filled with certain information about the current status Restart profiling without cleaning up the old data and insteadĪll newly collected statistics are added to the already existing ones. The collected data can later be retrieved and examined Start the profiler, clearing all previously collected data if there The data is returned in an Octave data structure which can then beĮxamined or further processed by other routines or tools.Ĭommand: profile on Command: profile off Command: profile resume Command: profile clear Function File: S = profile ("status") Function File: T = profile ("info") Start or stop the profiler and also to query collected data afterwards. The main command for profiling is profile, which can be used to Up a lot of computation time and are the best targets to spend Is in particular helpful for finding “hot spots” in the code which use
After that, this data can aid in analyzing the code behavior, and Octave code and anonymous functions) is recorded while running OctaveĬode. Operators, functions in oct- and mex-files, user-defined functions in Profiling is enabled, each call to a function (supporting built-ins, Octave supports profiling of code execution on a per-function level. Next: Profiler Example, Previous: Call Stack, Up: Debugging
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