This repository provides a backend for Spectra objects that supports storage of mass spectrometry (MS) data in an SQL database. The package provides the functionality to create such databases from original (raw) MS data files (in mzML, mzXML or netCDF format) and allows to extract the data in an efficient way.
For more information see the package homepage.
By providing the connection to an SQL database, the createMsBackendSqlDatabase imports raw MS data from provided file names and stores it into the dedicated database tables created during import. While MsBackendSql supports any type of SQL database, it is currently optimized for MySQL/MariaDB databases.
MS data in a MsBackendSql database can be accessed through the Spectra package by using the MsBackendSql MS backend. Assuming the variable dbcon represents a (RDBI) database connection to a MsBackendSql, the data can be represented/used with a Spectra object by:
library(Spectra) library(MsBackendSql) sps <- Spectra(dbcon, source = MsBackendSql())
For more information see the package homepage.
The package can be installed with
install.packages("BiocManager")
BiocManager::install("MsBackendSql")
Contributions are highly welcome and should follow the contribution guidelines. Also, please check the coding style guidelines in the RforMassSpectrometry vignette.
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