Add Empty Rows
Adds a certain number of empty rows with missing values
(or a constant) to the input table. This can be useful when
used in a report table to ensure that a table has a
minimum number of rows, which are then shown as blank rows.
The content of the appended rows can be defined in the dialog, the
default is to fill the corresponding cells with missing values. Note
that the reporting engine allows you to format cells containing
missing values (or any other specific value) using the "Map"
feature. For instance, if you want to format missing values (shown
as NaN in the report) as blank fields, add a map rule
isNaN(row["Column x"]), which needs to evaluate to True.
Dialog Options
- Number of rows in output
- Choose whether to add a fixed
number of rows to the input table ("Additional"), independent of the
input table's row count; or to add rows to the table only in case
there are less rows than indicated ("At least"). The latter will
not change the input table if there are already more rows than
specified in the corresponding field.
- Fill Data
- Specify the content of newly added rows. For
common base types (Double, Int, String), choose either a fixed value
or "Missing", which then fills in a missing value. Columns with
another type than listed here are always filled with missing values.
Ports
Output Ports
0 |
Input table augmented by additional rows |
This node is contained in KNIME Base Nodes
provided by KNIME GmbH, Konstanz, Germany.