Mercurial > repos > prog > lcmsmatching
diff MassbankEntry.R @ 6:f86fec07f392 draft default tip
planemo upload commit c397cd8a93953798d733fd62653f7098caac30ce
author | prog |
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date | Fri, 22 Feb 2019 16:04:22 -0500 |
parents | fb9c0409d85c |
children |
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--- a/MassbankEntry.R Wed Apr 19 10:00:05 2017 -0400 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,129 +0,0 @@ -########################### -# MASSBANK SPECTRUM CLASS # -########################### - -MassbankEntry <- methods::setRefClass("MassbankEntry", contains = "BiodbEntry") - -########### -# FACTORY # -########### - -createMassbankEntryFromTxt <- function(contents, drop = TRUE) { - - entries <- list() - - # Define fields regex - regex <- character() - regex[[BIODB.ACCESSION]] <- "^ACCESSION: (.+)$" - regex[[BIODB.MSDEV]] <- "^AC\\$INSTRUMENT: (.+)$" - regex[[BIODB.MSDEVTYPE]] <- "^AC\\$INSTRUMENT_TYPE: (.+)$" - regex[[BIODB.MSTYPE]] <- "^AC\\$MASS_SPECTROMETRY: MS_TYPE (.+)$" - regex[[BIODB.MSPRECMZ]] <- "^MS\\$FOCUSED_ION: PRECURSOR_M/Z (.+)$" - regex[[BIODB.NB.PEAKS]] <- "^PK\\$NUM_PEAK: ([0-9]+)$" - regex[[BIODB.MSPRECANNOT]] <- "^MS\\$FOCUSED_ION: PRECURSOR_TYPE (.+)$" - regex[[BIODB.CHEBI.ID]] <- "^CH\\$LINK: CHEBI\\s+(.+)$" - regex[[BIODB.KEGG.ID]] <- "^CH\\$LINK: KEGG\\s+(.+)$" - regex[[BIODB.INCHI]] <- "^CH\\$IUPAC:\\s+(.+)$" - regex[[BIODB.INCHIKEY]] <- "^CH\\$LINK: INCHIKEY\\s+(.+)$" - regex[[BIODB.CHEMSPIDER.ID]] <- "^CH\\$LINK: CHEMSPIDER\\s+(.+)$" - regex[[BIODB.CAS.ID]] <- "^CH\\$LINK: CAS\\s+(.+)$" - regex[[BIODB.FORMULA]] <- "^CH\\$FORMULA:\\s+(.+)$" - regex[[BIODB.SMILES]] <- "^CH\\$SMILES:\\s+(.+)$" - regex[[BIODB.MASS]] <- "^CH\\$EXACT_MASS:\\s+(.+)$" - regex[[BIODB.PUBCHEMCOMP.ID]] <- "^CH\\$LINK: PUBCHEM\\s+.*CID:([0-9]+)" - regex[[BIODB.PUBCHEMSUB.ID]] <- "^CH\\$LINK: PUBCHEM\\s+.*SID:([0-9]+)" - - for (text in contents) { - - # Create instance - entry <- MassbankEntry$new() - - if ( ! is.null(text) && ! is.na(text)) { - - # Read text - lines <- strsplit(text, "\n") - for (s in lines[[1]]) { - - # Test generic regex - parsed <- FALSE - for (field in names(regex)) { - g <- stringr::str_match(s, regex[[field]]) - if ( ! is.na(g[1,1])) { - entry$setField(field, g[1,2]) - parsed <- TRUE - break - } - } - if (parsed) - next - - # Name - if (is.na(entry$getField(BIODB.NAME))) { - g <- stringr::str_match(s, "^CH\\$NAME:\\s+(.+)$") - if ( ! is.na(g[1,1])) - entry$setField(BIODB.NAME, g[1,2]) - } - - # PubChem - g <- stringr::str_match(s, "^CH\\$LINK: PUBCHEM\\s+([0-9]+)$") - if ( ! is.na(g[1,1])) - entry$setField(BIODB.PUBCHEMSUB.ID, g[1,2]) - - # MS MODE - g <- stringr::str_match(s, "^AC\\$MASS_SPECTROMETRY: ION_MODE (.+)$") - if ( ! is.na(g[1,1])) { - entry$setField(BIODB.MSMODE, if (g[1,2] == 'POSITIVE') BIODB.MSMODE.POS else BIODB.MSMODE.NEG) - next - } - - # PEAKS - if (.parse.peak.line(entry, s)) - next - } - } - - entries <- c(entries, entry) - } - - # Replace elements with no accession id by NULL - entries <- lapply(entries, function(x) if (is.na(x$getField(BIODB.ACCESSION))) NULL else x) - - # If the input was a single element, then output a single object - if (drop && length(contents) == 1) - entries <- entries[[1]] - - return(entries) -} - -################### -# PARSE PEAK LINE # -################### - -.parse.peak.line <- function(entry, line) { - - peaks <- BIODB.PEAK.DF.EXAMPLE - - # Annotation - g <- stringr::str_match(line, "^\\s+([0-9][0-9.]*) ([A-Z0-9+-]+) ([0-9]+) ([0-9][0-9.]*) ([0-9][0-9.]*)$") - if ( ! is.na(g[1,1])) - peaks[1, c(BIODB.PEAK.MZ, BIODB.PEAK.FORMULA, BIODB.PEAK.FORMULA.COUNT, BIODB.PEAK.MASS, BIODB.PEAK.ERROR.PPM)] <- list(as.double(g[1,2]), g[1,3], as.integer(g[1,4]), as.double(g[1,5]), as.double(g[1,6])) - - # Peak - g <- stringr::str_match(line, "^\\s+([0-9][0-9.]*) ([0-9][0-9.]*) ([0-9]+)$") - if ( ! is.na(g[1,1])) - peaks[1, c(BIODB.PEAK.MZ, BIODB.PEAK.INTENSITY, BIODB.PEAK.RELATIVE.INTENSITY)] <- list(as.double(g[1,2]), as.double(g[1,3]), as.integer(g[1,4])) - - if (nrow(peaks) > 0) { - - # Get curent peaks and merge with new peaks - current.peaks <- entry$getField(BIODB.PEAKS) - if ( ! is.null(current.peaks)) - peaks <- rbind(current.peaks, peaks) - - entry$setField(BIODB.PEAKS, peaks) - - return(TRUE) - } - - return(FALSE) -}