Merge pull request #24 from SingleRust/feature-dev-random-svd

Version bump and added sparse PCA SVD selection method

Author: ianfd

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "single_algebra"
-version = "0.2.3-alpha.3"
+version = "0.3.0-alpha.0"
 edition = "2021"
 license-file = "LICENSE.md"
 description = "A linear algebra convenience library for the single-rust library. Can be used externally as well."
@@ -44,7 +44,7 @@ num-traits = "0.2.19"
 rayon = "1.10.0"
 simba = { version = "0.9.0", optional = true }
 smartcore = { version = "0.4", features = ["ndarray-bindings"], optional = true }
-single-svdlib = "0.2.0"
+single-svdlib = "0.8.0"
 parking_lot = "0.12.3"
 petgraph = { version = "0.7.1", features = ["rayon"] }
 rand = "0.9.0"

Cargo.toml

@@ -1,10 +1,28 @@
-use rayon::prelude::*;
-
 pub mod dense;
 mod sparse;
 
 mod sparse_masked;
+
+use single_svdlib::randomized::PowerIterationNormalizer;
 pub use sparse::SparsePCA;
 pub use sparse::SparsePCABuilder;
 pub use sparse_masked::MaskedSparsePCA;
 pub use sparse_masked::MaskedSparsePCABuilder;
+
+
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum SVDMethod {
+    Lanczos,
+    Random {
+        n_oversamples: usize,
+        n_power_iterations: usize,
+        normalizer: PowerIterationNormalizer,
+    },
+}
+
+impl Default for SVDMethod {
+    fn default() -> Self {
+        Self::Lanczos
+    }
+}
+