Fft (#16)

* added lfilter

* Ran pre-commit

* Fixed env file

* Improved implementation

* Ran pre-commit

* Updated to reflect PR comments

* Use size_type

* Try to fix tests

* Moved one pad out

* Removed extra pad call

* Run pre-commit

* Added basic fft more work needed

* pre-commit

* Tests passing

* Updated cmake version

* Run pre=commit

* Added axis

* pre-commit

* Added check for power of 2

* Added todo

* pre-commit

* Added comment

* Added power of 2 check

* Added TBB to configuration

* Ran pre-commit

* Added comments

* Format again

* Update ghworkflow.yml

* Update fft.hpp

Added comments

* Ran pre-commit

* Run static on pr

Author: spectre-ns

Diff for: .github/workflows/static-analysis.yml

@@ -1,6 +1,11 @@
 name: Static Analysis
 
-on: push
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches: [master]
+
 
 jobs:
   pre-commit:

Diff for: include/xtensor-signal/fft.hpp

@@ -59,11 +59,11 @@ inline auto fft(E &&e) {
 } // namespace detail
 
 /**
-* @breif 1D FFT of an Nd array along a specified axis
-* @param e an Nd expression to be transformed to the fourier domain
-* @param axis the axis along which to perform the 1D FFT
-* @return a transformed xarray of the specified precision
-*/
+ * @brief 1D FFT of an Nd array along a specified axis
+ * @param e an Nd expression to be transformed to the fourier domain
+ * @param axis the axis along which to perform the 1D FFT
+ * @return a transformed xarray of the specified precision
+ */
 template <class E,
           typename std::enable_if<
               xtl::is_complex<typename std::decay<E>::type::value_type>::value,
@@ -82,11 +82,11 @@ inline auto fft(E &&e, std::ptrdiff_t axis = -1) {
 }
 
 /**
-* @breif 1D FFT of an Nd array along a specified axis
-* @param e an Nd expression to be transformed to the fourier domain
-* @param axis the axis along which to perform the 1D FFT
-* @return a transformed xarray of the specified precision
-*/
+ * @breif 1D FFT of an Nd array along a specified axis
+ * @param e an Nd expression to be transformed to the fourier domain
+ * @param axis the axis along which to perform the 1D FFT
+ * @return a transformed xarray of the specified precision
+ */
 template <class E,
           typename std::enable_if<
               !xtl::is_complex<typename std::decay<E>::type::value_type>::value,