Difference between revisions of "LXMerge"
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==Purpose of LXMerge== | ==Purpose of LXMerge== | ||
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| + | LXMerge aligns and merges result files coming from LipidXplorer. The columns to be aligned are assigned by the user. Also, the output columns as well as their order are assigned by the user. | ||
===Use case one: using specific occupation threshold settings=== | ===Use case one: using specific occupation threshold settings=== | ||
| − | + | Often you have samples groups coming from different sources, for example from different phenotypes of a particular organism. Every phenotype is analysed including biogical and technical repeats leading to groups of samples assigned to each phenotype, respectively. | |
| − | To have an accurate lipid identfication the occupation threshold option from the import settings of LipidXplorer can be used to assert that a peak is present in a given percentage of samples. The problem is, that there could be lipids which are not present in some samples | + | To have an accurate lipid identfication the occupation threshold option from the import settings of LipidXplorer can be used to assert that a peak is present in a given percentage of samples. The problem is, that there could be lipids which are not present in some samples. An occupation threshold setting for all samples would give an incomplete result. |
| − | With LXMerge one can overcome this issue | + | With LXMerge one can overcome this issue. For this use case it would make sense to import every sample group in an own MasterScan with a stringend occupation threshold setting. Then use LXMerge to align the results by an unique key, which is a column with enties which do not repeat. The result at the end is a merged file containing the aligned results. |
Revision as of 16:03, 8 October 2010
Purpose of LXMerge
LXMerge aligns and merges result files coming from LipidXplorer. The columns to be aligned are assigned by the user. Also, the output columns as well as their order are assigned by the user.
Use case one: using specific occupation threshold settings
Often you have samples groups coming from different sources, for example from different phenotypes of a particular organism. Every phenotype is analysed including biogical and technical repeats leading to groups of samples assigned to each phenotype, respectively.
To have an accurate lipid identfication the occupation threshold option from the import settings of LipidXplorer can be used to assert that a peak is present in a given percentage of samples. The problem is, that there could be lipids which are not present in some samples. An occupation threshold setting for all samples would give an incomplete result.
With LXMerge one can overcome this issue. For this use case it would make sense to import every sample group in an own MasterScan with a stringend occupation threshold setting. Then use LXMerge to align the results by an unique key, which is a column with enties which do not repeat. The result at the end is a merged file containing the aligned results.
