slice.chMDB

Subset a chMDB object according to row position in one table
and return a memoMDB

Facilitate the management of data from knowledge
resources that are frequently used alone or together
in research environments.
In 'TKCat', knowledge resources are manipulated as modeled database (MDB)
objects. These objects provide access to the data tables along with a general
description of the resource and a detail data model documenting the
tables, their fields and their relationships.
These MDBs are then gathered in catalogs that can be easily
explored an shared.
Finally, 'TKCat' provides tools to easily subset, filter and combine MDBs and
create new catalogs suited for specific needs.

Patrice Godard

TKCat

Tailored Knowledge Catalog

slice.chMDB function

<dl><dt>.data</dt>
<dd>a chMDB object</dd>
<dt>...</dt>
<dd>a single argument. The name of this argument should be a table
name of x and the value of this argument should be vector of integers
corresponding to row indexes.</dd>
<dt>by</dt>
<dd>the size of the batch: number of records to slice
together (default: 10^5)</dd>
<dt>.preserve</dt>
<dd>not used</dd></dl>

Arguments

Subset a chMDB object according to row position in one table
and return a memoMDB — slice.chMDB

<dl>

<dt>.data</dt>
<dd>a chMDB object</dd>


<dt>...</dt>
<dd>a single argument. The name of this argument should be a table
name of x and the value of this argument should be vector of integers
corresponding to row indexes.</dd>


<dt>by</dt>
<dd>the size of the batch: number of records to slice
together (default: 10^5)</dd>


<dt>.preserve</dt>
<dd>not used</dd>

</dl>

slice.chMDB: Subset a chMDB object according to row position in one table and return a memoMDB

Description

Usage

Value

Arguments