update example for purityX causing build fail

DESCRIPTION

@@ -2,8 +2,8 @@ Package: msPurity
 Type: Package
 Title: Automated Evaluation of Precursor Ion Purity for Mass Spectrometry Based
     Fragmentation in Metabolomics
-Version: 1.27.1
-Date: 2023-08-30
+Version: 1.31.1
+Date: 2024-05-09
 Authors@R: c(
     person(given = "Thomas N.", family = "Lawson",
         email = "[email protected]", role = c("aut", "cre"),
@@ -61,7 +61,7 @@ Suggests:
     RPostgres,
     RMySQL
 VignetteBuilder: knitr
-RoxygenNote: 7.2.3
+RoxygenNote: 7.3.1
 Roxygen: list(markdown = TRUE)
 biocViews: MassSpectrometry, Metabolomics, Software
 Collate: 

NEWS

@@ -1,3 +1,6 @@
+CHANGES IN VERSION 1.30.1 / 1.31.1
++ Update example for purityX causing build error
+
 CHANGES IN VERSION 1.27.1
 + createMSP fix - now uses the median precursor MZ and precursor RT in the MSP file
 

R/purityX-constructor.R

@@ -54,14 +54,12 @@
 #'
 #' @return a purityX object containing a dataframe of predicted purity scores
 #' @examples
-#' msPths <- list.files(system.file("extdata", "lcms", "mzML",
-#'                     package="msPurityData"), full.names = TRUE,
-#'                     pattern = "LCMS_")
-#' xset <- xcms::xcmsSet(msPths)
-#' xset <- xcms::group(xset)
-#' xset <- xcms::retcor(xset)
-#' xset <- xcms::group(xset)
-#' ppLCMS <- purityX(xset, cores = 1, xgroups = c(1, 2))
+#'
+#' msPths <- list.files(system.file("extdata", "lcms", "mzML", package="msPurityData"), full.names = TRUE, pattern = "LCMS_")
+#' xset <- readRDS(system.file("extdata", "tests", "xcms", "ms_only_xset_OLD.rds", package="msPurity"))
+#' xset@filepaths[1] <- msPths[basename(msPths)=="LCMS_1.mzML"]
+#' xset@filepaths[2] <- msPths[basename(msPths)=="LCMS_2.mzML"]
+#' px <- purityX(xset, singleFile = 1)
 #'
 #' @export
 purityX <- function(xset, purityType="purityFWHMmedian", offsets=c(0.5, 0.5),