Fix rank-0 coord select guard and fbe doc typo

dascore/core/coords.py

@@ -347,7 +347,7 @@ def _select_by_sample_array(self, array):
             msg = "Using an array input for select with samples requires integer dtype."
             raise CoordError(msg)
         # Filter out bad indices
-        if self.ndim > 1:
+        if self.ndim != 1:
             msg = "Select only works on 1D coords."
             raise CoordError(msg)
         inds = np.arange(len(self))

dascore/transform/fbe.py

@@ -41,8 +41,8 @@ def fbe(
         can be used for downsampling of the resulting patch.
         See also [rolling](`dascore.Patch.rolling`)
     db
-        Return patch data in decibel [dB] instead of orginal units.
-        Decibel is calculated as 20 * log10( sqrt(mean(x^2))) ).
+        Return patch data in decibel [dB] instead of original units.
+        Decibel is calculated as 20 * log10( sqrt(mean(x^2)) ).
     **kwargs
         Used to specify the dimension and asociated frequency, wavelength, or
         equivalent limits. For example time=(1, 100) applies a time-dimension bandpass

tests/test_core/test_coords.py

@@ -2104,6 +2104,13 @@ def test_select_sample_array_2d_raises(self, coord_2d):
         with pytest.raises(CoordError, match="1D coords"):
             coord_2d.select(np.array([0, 1]), samples=True)
 
+    def test_select_sample_array_0d_raises(self):
+        """A rank-0 coord must also be rejected, not just >1D."""
+        coord_0d = CoordPartial(shape=())
+        assert coord_0d.ndim == 0
+        with pytest.raises(CoordError, match="1D coords"):
+            coord_0d.select(np.array([0, 1]), samples=True)
+
     def test_get_sample_count_2d_raises(self, coord_2d):
         """get_sample_count requires a 1D coord."""
         with pytest.raises(CoordError, match="1D coords"):