FIX: Notch frequencies may be specified by three numbers

bids-standard · Sep 8, 2023 · 861fb1f · 861fb1f
1 parent fc98780
commit 861fb1f
Showing 1 changed file with 4 additions and 6 deletions.
diff --git a/src/schema/objects/columns.yaml b/src/schema/objects/columns.yaml
@@ -302,13 +302,11 @@ notch:
   display_name: Notch frequencies
   description: |
     Frequencies used for the notch filter applied to the channel, in Hz.
+    If the low and high frequencies are supplied in addition to the center
+    frequency, it is RECOMMENDED that they take the form `[low, center, high]`,
+    for example `[60, 120, 180]`.
     If no notch filter applied, use `n/a`.
-  anyOf:
-    - type: number
-      unit: Hz
-    - type: string
-      enum:
-        - n/a
+  type: string
 onset:
   name: onset
   display_name: Event onset