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transformations:sandbox [2016/06/12 15:34] (current)
dmitry created
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 +===== Sandbox =====
 +Creates a temporary table which is typically used for one-time calculations. Sandboxes can be populated with result data of any transformation, or pasted from the clipboard.
 +Data in sandboxes survives reloads -- sandbox contents doesn't change on partial or full reloads. Although, it doesn't survive re-opening the project. When a project with a Sandbox transformation is opened all its sandboxes are empty.
 +Besides ad hoc calculations, sandboxes can be used in a few more cases:
 +  * Together with [[transformations:either|Either table]] transformation Sandbox can be used to safely insert an arbitrary dataset into any point of a transformation chain, which can be useful for debugging and development purposes. In this scenario insert [[transformations:either|Either table]] and point its second input to a table created using Sandbox transformation.
 +  * Sandboxes can be used to create an empty table as a starting point for further transformations. Some transformations (e.g. [[transformations:runprogram|Run external program]] might not need an input dataset, but they don't create a table. In this case a generic empty table can be created using Sandbox, and then [[transformations:runprogram|Run external program]] can be inserted after it. 
 +Sandbox transformation has no parameters.
 +**See also**
 +  * [[http://| Tutorial: Data analysis]]
 +  * [[transformations:either|Either table]]
transformations/sandbox.txt · Last modified: 2016/06/12 15:34 by dmitry