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userguide:contextcomparisons [2011/02/01 14:54] 132.168.74.230 |
userguide:contextcomparisons [2011/02/01 14:57] 132.168.74.230 |
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===== Compare several contexts to their union ===== | ===== Compare several contexts to their union ===== | ||
- | Main steps: | + | Main steps realized in algorithm: |
- Retrieve selected contexts to compare | - Retrieve selected contexts to compare | ||
- | - Know if they are all the children of an existing parent context. If not, create a virtual union parent context that group selected contexts and run eptide/protein grouping | + | - Know if they are all the children of an existing parent context. If not, create a virtual union parent context (see details in following section) that group selected contexts and run peptide/protein grouping |
- | - Compare selected contexts to their union (virtual or existing) | + | - Compare selected contexts to their union (virtual or existing parent) |
==== Is there a need to create a "virtual" union parent context ? ==== | ==== Is there a need to create a "virtual" union parent context ? ==== | ||
- | There are 2 possibilities, either the parent union already exists or the parent union needs to be created.\\ | + | There are 2 situations, either the parent union already exists or the parent union needs to be created. In the image below: |
- | In the image below: | + | |
* the union parent must be created in **case 1**: it is called //**virtual**// as it is only created in-memory for the process | * the union parent must be created in **case 1**: it is called //**virtual**// as it is only created in-memory for the process | ||
* the union parent already exists in **case 2** | * the union parent already exists in **case 2** |