Upgrade ensmallen to 2.18.1 (#46)

Co-authored-by: coatless <[email protected]>

Author: github-actions[bot]

ChangeLog

@@ -1,3 +1,10 @@
+2021-11-20  James Balamuta  <[email protected]>
+
+	* DESCRIPTION (Version): Release 2.18.1
+	* NEWS.md: Update for Ensmallen release 2.18.1
+	* inst/include/ensmallen_bits: Upgraded to Ensmallen 2.18.1
+	* inst/include/ensmallen.hpp: ditto
+
 2021-10-22  James Balamuta  <[email protected]>
 
 	* DESCRIPTION (Version): Release 2.18.0 and increase RcppArmadillo requirement

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: RcppEnsmallen
 Title: Header-Only C++ Mathematical Optimization Library for 'Armadillo'
-Version: 0.2.18.0.1
+Version: 0.2.18.1.1
 Authors@R: c(
     person("James Joseph", "Balamuta", email = "[email protected]", 
            role = c("aut", "cre", "cph"), 

NEWS.md

@@ -1,3 +1,13 @@
+# RcppEnsmallen 0.2.18.1.1
+
+- Upgraded to ensmallen 2.18.1: "Fairmount Bagel" (2021-11-20)
+  - Accelerate SGD test time
+    ([#330](https://github.com/mlpack/ensmallen/pull/300)).
+  - Fix potential infinite loop in CMAES
+    ([#331](https://github.com/mlpack/ensmallen/pull/331)).
+  - Fix SCD partial gradient test
+    ([#332](https://github.com/mlpack/ensmallen/pull/332)).
+
 # RcppEnsmallen 0.2.18.0.1
 
 - Upgraded to ensmallen 2.18.0: "Fairmount Bagel" (2021-10-21)

inst/include/ensmallen_bits/cmaes/cmaes_impl.hpp

@@ -159,7 +159,7 @@ typename MatType::elem_type CMAES<SelectionPolicyType>::Optimize(
     // add a small value and try again.
     BaseMatType covLower;
     while (!arma::chol(covLower, C[idx0], "lower"))
-      C[idx0].diag() += 1e-16;
+      C[idx0].diag() += std::numeric_limits<ElemType>::epsilon();
 
     for (size_t j = 0; j < lambda; ++j)
     {

inst/include/ensmallen_bits/ens_version.hpp

@@ -16,16 +16,16 @@
 // The minor version is two digits so regular numerical comparisons of versions
 // work right.  The first minor version of a release is always 10.
 #define ENS_VERSION_MINOR 18
-#define ENS_VERSION_PATCH 0
+#define ENS_VERSION_PATCH 1
 // If this is a release candidate, it will be reflected in the version name
 // (i.e. the version name will be "RC1", "RC2", etc.).  Otherwise the version
 // name will typically be a seemingly arbitrary set of words that does not
 // contain the capitalized string "RC".
 #define ENS_VERSION_NAME "Fairmount Bagel"
 // Incorporate the date the version was released.
 #define ENS_VERSION_YEAR "2021"
-#define ENS_VERSION_MONTH "10"
-#define ENS_VERSION_DAY "20"
+#define ENS_VERSION_MONTH "11"
+#define ENS_VERSION_DAY "19"
 
 namespace ens {
 

tools/HISTORYold.md

@@ -1,3 +1,14 @@
+### ensmallen 2.18.1: "Fairmount Bagel"
+###### 2021-11-19
+ * Accelerate SGD test time
+   ([#330](https://github.com/mlpack/ensmallen/pull/300)).
+
+ * Fix potential infinite loop in CMAES
+   ([#331](https://github.com/mlpack/ensmallen/pull/331)).
+
+ * Fix SCD partial gradient test
+   ([#332](https://github.com/mlpack/ensmallen/pull/332)).
+
 ### ensmallen 2.18.0: "Fairmount Bagel"
 ###### 2021-10-20
  * Add gradient value clipping and gradient norm scaling callback