diff --git a/_sources/math-agg-stats/abs.md b/_sources/math-agg-stats/abs.md
index c7de9c5..b316983 100755
--- a/_sources/math-agg-stats/abs.md
+++ b/_sources/math-agg-stats/abs.md
@@ -12,7 +12,7 @@ ABS(<숫자>)
 
 매개변수 명 | 설명 
 ---------|----------
- 숫자 | 절댓값을 얻고자 하는 숫자, 상수(constant)
+ 숫자 | 절댓값을 얻고자 하는 숫자, 측정값에 활용 시 상수(constant)이어야 함
 
 
 ## 반환 결과
diff --git a/math-agg-stats/abs.html b/math-agg-stats/abs.html
index a841aba..5517374 100755
--- a/math-agg-stats/abs.html
+++ b/math-agg-stats/abs.html
@@ -412,7 +412,7 @@ <h2>매개변수<a class="headerlink" href="#id2" title="Link to this heading">#
 </thead>
 <tbody>
 <tr class="row-even"><td><p>숫자</p></td>
-<td><p>절댓값을 얻고자 하는 숫자, 상수(constant)</p></td>
+<td><p>절댓값을 얻고자 하는 숫자, 측정값에 활용 시 상수(constant)이어야 함</p></td>
 </tr>
 </tbody>
 </table>
diff --git a/searchindex.js b/searchindex.js
index 7c0a623..a06cf4c 100755
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