some cleanups

.github/workflows/ContinuousTesting.yml

@@ -25,7 +25,7 @@ jobs:
 
             - name: Static Type Check
               run: |
-                mypy pyssp --explicit-package-bases
+                mypy pyssp
 
             - name: Test
               run: |

pyssp/state.py

@@ -4,10 +4,10 @@
 from typing import NoReturn
 
 import numpy as np
-import numpy.typing as npt
+from numpy.typing import ArrayLike
 
 
-def convm(x: npt.ArrayLike, p: int) -> npt.NDArray[np.float64]:
+def convm(x: ArrayLike, p: int) -> np.ndarray:
     """Construct the convolution matrix of the signal x with p number of parameters.
 
     (N + p - 1) by p non-symmetric Toeplitz matrix
@@ -27,7 +27,7 @@ def convm(x: npt.ArrayLike, p: int) -> npt.NDArray[np.float64]:
     return X
 
 
-def covar(x: npt.ArrayLike, p: int) -> np.ndarray:
+def covar(x: ArrayLike, p: int) -> np.ndarray:
     """Covariance Matrix.
 
     p x p hermitian toeplitz matrix of sample covariances
@@ -40,36 +40,36 @@ def covar(x: npt.ArrayLike, p: int) -> np.ndarray:
     return R
 
 
-def normalprony(x: npt.ArrayLike, p: int, q: int) -> NoReturn:
+def normalprony(x: ArrayLike, p: int, q: int) -> NoReturn:
     """Normalized prony Systems of Equations."""
     raise NotImplementedError()
 
 
-def ywe(x: npt.ArrayLike, p: int, q: int) -> NoReturn:
+def ywe(x: ArrayLike, p: int, q: int) -> NoReturn:
     """Yuler-Walker Systems of Equations."""
     raise NotImplementedError()
 
 
-def nywe(x: npt.ArrayLike, p: int, q: int) -> NoReturn:
+def nywe(x: ArrayLike, p: int, q: int) -> NoReturn:
     """Normalized Yuler-Walker Systems of Equations."""
     raise NotImplementedError()
 
 
-def mywe(x: npt.ArrayLike, p: int, q: int) -> NoReturn:
+def mywe(x: ArrayLike, p: int, q: int) -> NoReturn:
     """Modified Yuler-Walker Systems of Equations."""
     raise NotImplementedError()
 
 
-def eywe(x: npt.ArrayLike, p: int, q: int) -> NoReturn:
+def eywe(x: ArrayLike, p: int, q: int) -> NoReturn:
     """Extended Yuler-Walker Systems of Equations."""
     raise NotImplementedError()
 
 
-def normaldeterministic(x: npt.ArrayLike, p: int, q: int) -> NoReturn:
+def normaldeterministic(x: ArrayLike, p: int, q: int) -> NoReturn:
     """Normal Determenistic Systems of Equations."""
     raise NotImplementedError()
 
 
-def wienerhopf(x: npt.ArrayLike, p: int, q: int) -> NoReturn:
+def wienerhopf(x: ArrayLike, p: int, q: int) -> NoReturn:
     """Wiener-Hopf Systems of Equations."""
     raise NotImplementedError()