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--- transformations:keeptop [2015/04/10 12:45] – elenap
+++ transformations:keeptop [2023/10/05 00:34] (current) – removed dmitry
@@ Line 1: / Line 1: @@
-===== Keep Top Rows =====
-This transformation keeps only first N rows and removes all other rows.
-If you need to remove bottom rows -- add line numbers using [[transformations:enumerate|Enumerate Rows]], sort backwards by row numbers using [[transformations:sort|Sort]] and then apply Keep Top Rows.
-EXAMPLE
-**Source table:** The longest rivers in the world
-^  River  ^  Length (km)  ^  Continent  ^
-| Nile  |  6650  |  Africa  |
-| Amazon  |  6400  |  South America  |
-| Yangtze  |  6300  |  Asia  |
-| Mississippi  |  6275  |  North America  |
-| Yenisei  |  5539  |  Asia  |
-| Yellow River  |  5464  |  Asia  |
-| Ob  |  5410  |  Asia  |
-| Paraná  |  4880  |  South America  |
-**Objective:** Keep the three top rows in the table
-**Transformation parameters:**
-  * Number of rows: 3
-**Output table:**
-^  River  ^  Length (km)  ^  Continent  ^
-| Nile  |  6650  |  Africa  |
-| Amazon  |  6400  |  South America  |
-| Yangtze  |  6300  |  Asia  |