Directory: performance/
Examples of optimizing IDL code.
Contents
.pro files
- mg_convert_type.pro
Given two type codes, return a type code of a variable that can contain the precision of both type codes.
- mg_n_smallest.pro
Finds the n smallest elements of a data array.
- mg_sample.pro
Get nIndices random indices for an array of size nValues (without repeating an index).
- mg_where_vs_histogram.pro
This shows the IDL help is wrong when it says: For example, make the histogram of array A: H = HISTOGRAM(A, REVERSE_INDICES = R) ;Set all elements of A that are in the ith bin of H to 0. IF R[i] NE R[i+1] THEN A[R[R[I] : R[i+1]-1]] = 0 The above is usually more efficient than the following: bini = WHERE(A EQ i, count) IF count NE 0 THEN A[bini] = 0
- mgcoabstractiterator__define.pro
Define member variables.
- mgcoabstractlist__define.pro
Abstract class to define a list interface.
- mgcoarraylist__define.pro
An array list is a way to have an arbitrary length list of any particular IDL variable (but all elements must be the same type).
- mgcoarraylistiterator__define.pro
This class provides a nice way to iterate through all the elements of an array list.
- performance_chapter.pro
Batch file containing all the code intended to be typed at the command line from the "Performance" chapter.
- performance_solutions.pro