Table column concat - gws_core

Typing name : TASK.gws_core.TableColumnConcat

Brick : gws_core

Concatenate two tables along the columns by merging rows

Concatenate two tables along the columns by merging rows. The total number of columns will be the sum of the two tables. The total number of rows will depend if the two table have common rows (based on name).

If the two table have the same row (based on name), the values of theses rows are concatenated (starting from the first table) into the same row.

If a row doesn't exist in the other table, it will be concatenate with value provided in the Fill empty values with parameter.

Example

Let's say you have the following tables.

Row names	1	2
A	A1	A2
B	B1	B2

Row names	3	4
A	A3	A4
C	C3	C4

Here is the result of the column concatenation.

Row names	1	2	3	4
A	A1	A2	A3	A4
B	B1	B2	NaN	NaN
C	NaN	NaN	C3	C4

NaN value are create for the B and C rows because they don't exist in the other table. You can provide another value with the Fill empty values with parameter.

The first two columns will have the tags from the first table and the last two columns will have the tags from the second.

The row tags will depend on Row tags options parameter.

Parameters

Row tags options

This parameter allows you to define what to do with the column tags. Here is the different options:

ignore: the tags are ignored and left empty
keep first: only the tags of the first table are keept
merge from first table: tags of the first and second table are merged (the first table tags override the second table tags)

Input

First table

2d excel like table

Table

Second table

2d excel like table

Table

Output

Concatenated table

2d excel like table

Table

Configuration

row_tags_options

Optional

What to do with the row tags. See doc for more info

Type : string

Default value : ignore

fill_nan

Optional

Fill empty value generated by the concat with this value

Type : string

Default value : NaN