6.2 Step 1 - Creating the XML Database

To create the XML database from the raw database stored into the folder data, use the command MetaDB as follows:

$java org.metaqtl.main.MetaDB -e data/experiments.csv -m data/genetic-map \ -q data/qtl-map -t data/trait_ontology.csv \ -d data/marker_dictionary.csv -o xml

Note that the command is run into the current directoy (not in the directoy data) and that the ouput XML database is created into the directoy xml (it will be created by the program). Now, if we have a look to xml we can see 19 xml files, 18 summarizing the information of the 18 input mapping experiments and one file ontology.xml which gives the XML representation of the input trait ontology. Then, we will no longer use the file in the folder data: only the XML files in xml must be used to carry out further studies with MetaQTL.