6f33d5f0a7
Fix incorrect usage of "ROSENBROCK" test function (unit tests).
2021-08-27 18:35:47 +02:00
cc5ae51f98
Favouring the "expanded" simplex over the "reflected" one.
...
This modification decreases the number of function evaluations in several
test cases. Note however that the original description of the algorithm
uses the strict inequality...
2021-08-27 17:24:51 +02:00
f1ad9d1b00
Simplex search in higher-dimensional cases (unit test).
2021-08-27 05:37:49 +02:00
ca826ba76b
Add (back) "POwELL" standard test function for optimizers.
2021-08-26 23:56:42 +02:00
f58da4abf5
Use default SA setup in "SimplexOptimizerTest" (unit test).
...
A single additional search finds the optimum of the test functions.
2021-08-26 02:05:15 +02:00
06ec7ad0bc
MATH-1622: Simulated annealing entails at least one additional search.
...
Also ensure that the "best list" contains at least two points.
2021-08-26 01:39:46 +02:00
677f5f7a3f
Input files for "SimplexOptimizerTest" (unit tests).
2021-08-25 01:51:34 +02:00
2ccdf8d002
MATH-1622: Simulated annealing variant of "NelderMeadTransform".
2021-08-25 01:50:28 +02:00
80a7eb1832
Change how simulated annealing affects the transformed simplex (cf. MATH-1622).
...
Compared with commit 97462b1a1b
2021-08-24 15:46:10 +02:00
c21a810558
Useless local variable.
2021-08-24 04:09:42 +02:00
f8d7476614
Input files for "SimplexOptimizerTest" (unit tests).
2021-08-24 01:28:43 +02:00
97462b1a1b
MATH-1622: Simulated annealing variant of "MultiDirectionalTransform".
2021-08-24 01:18:16 +02:00
47904caeb8
Update exception fr locale to match changes to en locale
2021-08-23 07:40:55 +01:00
21f8008108
MATH-1627: Throw an exception when column or row sums are zero.
2021-08-22 21:43:52 +01:00
991314d461
Remove incorrect localization format for zero exception
2021-08-22 21:43:52 +01:00
dc639967c2
Fix localization formats used by ZeroException.
...
The ZeroException preprends zero to the arguments. The {0} corresponds
to zero. All arguments to be formatted must start at {1}.
2021-08-22 21:43:52 +01:00
fb314ef3df
Spurious "throws" clauses.
2021-08-22 03:46:25 +02:00
9bb5791906
Redundant inner class.
2021-08-22 03:28:37 +02:00
f466637d82
Merge branch 'master' of https://gitbox.apache.org/repos/asf/commons-math
2021-08-22 02:32:10 +02:00
78fbc5f07c
Update script for visual check of "SimplexOptimizerTest" debugging output.
...
Allow displaying negative values of the objective function.
2021-08-22 02:30:01 +02:00
1e7bce134f
Adapt input files for "SimplexOptimizerTest" (unit tests).
...
The current tests are "baseline" (2D) cases.
Further work should check degradation with increased dimensionality.
2021-08-22 02:14:53 +02:00
14ebd93426
Relax expected number of evaluations (unit test).
...
Optimization is sensitive to the change from "AccurateMath" to "Math"
for computing the "pow" function used in "TestFunction.SUM_POW".
2021-08-22 01:10:04 +02:00
bdb4160b00
Add variance tests for zero weights
...
Update javadoc for the behaviour when input weights are zero.
This issue was found when checking the sonar report for the variance
class which has a potential divide by zero if the weights sum to zero.
2021-08-21 14:37:13 +02:00
033c7e2c39
Correct verification of zero length values and weights
...
This bug was found when checking the sonar report for the variance class
which uses MathArrays.verifyValues.
2021-08-21 14:37:13 +02:00
5245a685a0
sonar fix: Handle variance=0 in skewness computation for input array
2021-08-21 14:37:13 +02:00
30aa597f1e
sonar fix: Ensure checkFeasableCount is not negative.
...
Change loop condition to 'i <= checkFeasableCount' from 'i <
checkFeasableCount + 1'
This ensures the loop to identify a new feasible column (RealMatrix
arxk) always executes at least once even with checkFeasibleCount at the
limit of 0 or Integer.MAX_VALUE.
2021-08-21 14:37:13 +02:00
228a832532
Javadoc typo
2021-08-21 14:37:13 +02:00
75c7377e47
Only restore interrupted state if necessary
2021-08-21 14:37:13 +02:00
26e4a737f7
Javadoc typo
2021-08-21 14:37:13 +02:00
1bdb310ffa
Sonar fix: restore thread interrupted state
2021-08-21 14:37:13 +02:00
3ba0221c26
Simplify data format for "SimplexOptimizerTest" (randomized) input.
...
This commit also makes the following changes (unit tests):
* Add/remove/rename/rewrite test functions.
2021-08-21 14:33:30 +02:00
569e35ddbe
Add variance tests for zero weights
...
Update javadoc for the behaviour when input weights are zero.
This issue was found when checking the sonar report for the variance
class which has a potential divide by zero if the weights sum to zero.
2021-08-21 10:04:49 +01:00
a2efd4fad5
Correct verification of zero length values and weights
...
This bug was found when checking the sonar report for the variance class
which uses MathArrays.verifyValues.
2021-08-21 09:58:13 +01:00
3f7de0eb1e
sonar fix: Handle variance=0 in skewness computation for input array
2021-08-21 09:11:05 +01:00
1fdd55981d
sonar fix: Ensure checkFeasableCount is not negative.
...
Change loop condition to 'i <= checkFeasableCount' from 'i <
checkFeasableCount + 1'
This ensures the loop to identify a new feasible column (RealMatrix
arxk) always executes at least once even with checkFeasibleCount at the
limit of 0 or Integer.MAX_VALUE.
2021-08-21 08:16:20 +01:00
69bab476a5
Javadoc typo
2021-08-20 22:23:58 +01:00
5201f2c5fa
Only restore interrupted state if necessary
2021-08-20 21:19:23 +01:00
7ee70ef474
Javadoc typo
2021-08-20 13:44:15 +01:00
09dd29e56d
Sonar fix: restore thread interrupted state
2021-08-20 13:38:10 +01:00
7813ecb115
Update plugin order in pom
...
checkstyle
spotbugs
pmd
2021-08-19 00:35:58 +01:00
86624912ff
Update distribution source archive specification
...
Copy from commons-rng multi-module project
2021-08-19 00:29:56 +01:00
b6acad285d
Remove checksum from installed artifacts
...
This creates md5 and sha1 checksums for the dist-archive pom in the
local maven repository. It is not required.
2021-08-19 00:19:54 +01:00
c8b45d43fa
Add jars to dist archive
2021-08-19 00:19:54 +01:00
6e1e402ed6
Remove plugin checks from default goal
...
These plugins already run using executions:
apache-rat:check (validate)
checkstyle:check (verify)
Added to verify using executions:
pmd:check
spotbugs:check
2021-08-19 00:09:46 +01:00
e693b4d264
Use JUnit 5 Assertions for exact double equality
...
Fix checkstyle
2021-08-18 23:33:00 +01:00
56b7b12c2a
Simplify atan2 expressions when y is non-zero
2021-08-18 23:16:01 +01:00
7cb883c54b
sonar fix: avoid division by zero in atan2 when y=0
2021-08-18 23:02:55 +01:00
f06bb2aa3f
Update atan2 special cases test
...
Enumerate all combinations of 0, infinity and another value (0.1) with
+/- for each. Results are the same with java.lang.Math.
2021-08-18 23:02:55 +01:00
f6fe96b23f
Sonar fix: Replace x != x with Double.isNaN
2021-08-18 18:30:53 +01:00
e97c3288a5
Sonar fix: Cast operands to double before assigning result to double
2021-08-18 16:41:10 +01:00
Gilles Sadowski
Alex Herbert