MeltDBWiki/HowTos

Using the public MeltDB experiments

Login to the public MeltDB project using the guest account:

• guest login

To analyze the publicly available datasets in MeltDB, please select 'Browse/Analyse an existing Experiment' from the start page.

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Select the 'Three carbon sources' experiment by clicking on the folder icon to the left.

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The textual display of the experiment is presented and a number of potential actions together with their short descriptions are listed below.

Media:MeltDBWiki$$HowTos$carbon_sources.ext;

Please select 'Show PCA' to start the PCA analysis on the previously imported peaks found by Xcalibur preprocessing methods.

Select all chromatograms and a list of metabolites and click the 'Compute PCA' button. If you would like to log-transform the measured and normalized metabolite values, mark the 'log' checkbox.