MATLAB Programming Fundamentals - MathWorks

The Profile Summary report presents this information. Column Description Function Name List of all the functions called by the p ...

Name of the profiled function Number of times the parent function called the profiled function Time spent in the profiled funct ...

Display Option Details Show function listing Display the source code for the function, if it is a MATLAB code file. For each lin ...

Use Profiler to Determine Code Coverage When you run the Profiler on a file, some code might not run, such as a block containing ...

5 Click the Coverage link to see the Profile Detail Report for the file. See Also profile More About “Profile to Improve Perfor ...

Techniques to Improve Performance In this section... “Environment” on page 28-14 “Code Structure” on page 28-14 “Programming Pra ...

Place independent operations outside loops — If code does not evaluate differently with each for or while loop iteration, move ...

See Also More About “Measure Performance of Your Program” on page 28-2 “Profile to Improve Performance” on page 28-5 “Prealloca ...

Preallocation for and while loops that incrementally increase the size of a data structure each time through the loop can advers ...

A = int8(zeros(100)); This statement preallocates a 100-by-100 matrix of int8, first by creating a full matrix of double values, ...

Vectorization In this section... “Using Vectorization” on page 28-19 “Array Operations” on page 28-20 “Logical Array Operations” ...

The second code sample usually executes faster than the first and is a more efficient use of MATLAB. Test execution speed on you ...

NotePlacing a period (.) before the operators *, /, and ^, transforms them into array operators. Array operators also enable you ...

dimension in the other array. For more information, see “Compatible Array Sizes for Basic Operations” on page 2-19. Another area ...

Vgood = V(D >= 0); MATLAB allows you to perform a logical AND or OR on the elements of an entire vector with the functions al ...

v = 1:5; A = repmat(v,3,1) A = 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 The function repmat possesses flexibility in building matrices from ...

produces a vector that has one fewer element than x, you must add an element that is not equal to any other element in the set. ...

The find function does not return indices for NaN elements. You can count the number of NaN and Inf values using the isnan and i ...

See Also More About “Array Indexing” “Techniques to Improve Performance” on page 28-14 “Array vs. Matrix Operations” on page 2- ...

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