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diff --git a/execs/R/cpdbench_changepointnp.R b/execs/R/cpdbench_changepointnp.R
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+#' ---
+#' title: Wrapper for changepoint.np package in TCPDBench
+#' author: G.J.J. van den Burg
+#' date: 2019-09-30
+#' license: See LICENSE file.
+#' copyright: 2019, The Alan Turing Institute
+#' ---
+
+library(argparse)
+library(changepoint.np)
+
+load.utils <- function() {
+    # get the name of the current script so we can load utils.R (yay, R!)
+    cmd.args <- commandArgs(trailingOnly=F)
+    file.arg <- "--file="
+    this.script <- sub(file.arg, "", cmd.args[grep(file.arg, cmd.args)])
+    this.dir <- dirname(this.script)
+    utils.script <- file.path(this.dir, 'utils.R')
+    source(utils.script)
+}
+
+parse.args <- function() {
+    parser <- ArgumentParser(description='Wrapper for changepoint.np package')
+    parser$add_argument('-i', 
+                        '--input',
+                        help='path to the input data file',
+                        required=TRUE
+    )
+    parser$add_argument('-o',
+                        '--output',
+                        help='path to the output file')
+    parser$add_argument('-p',
+                        '--penalty',
+                        choices=c(
+                                  'None',
+                                  'SIC',
+                                  'BIC',
+                                  'MBIC',
+                                  'AIC',
+                                  'Hannan-Quinn',
+                                  'Asymptotic'
+                                  ),
+                        help='Choice of penalty in the cpt function',
+                        default='MBIC'
+    )
+    parser$add_argument('-q',
+                        '--nquantiles',
+                        type='integer',
+                        help='Number of quantiles to use',
+                        default=10
+    )
+    return(parser$parse_args())
+}
+
+main <- function() {
+    args <- parse.args()
+
+    # load the data
+    data <- load.dataset(args$input)
+
+    # get the parameter list
+    defaults <- list(method='PELT',
+                     test.stat='empirical_distribution',
+                     minseglen=1)
+    params <- make.param.list(args, defaults)
+
+    if (data$origina$n_dim > 1) {
+        # changepoint.np package can't handle multidimensional data
+        exit.error.multidim(data$original, args, params)
+    }
+
+    vec <- as.vector(data$mat)
+    start.time <- Sys.time()
+
+    result <- tryCatch({
+        locs <- cpt.np(vec,
+                       penalty=params$penalty,
+                       method=params$method,
+                       test.stat=params$test.stat,
+                       minseglen=params$minseglen,
+                       nquantiles=params$nquantiles,
+                       class=FALSE
+                       )
+        list(locations=locs, error=NULL)
+    }, error=function(e) {
+        return(list(locations=NULL, error=e$message))
+    })
+    stop.time <- Sys.time()
+    runtime <- difftime(stop.time, start.time, units="secs")
+
+    if (!is.null(result$error)) {
+        exit.with.error(data$original, args, params, result$error)
+    }
+
+    # convert indices to 0-based indices
+    locations <- as.list(result$locations - 1)
+
+    exit.success(data$original, args, params, locations, runtime)
+}
+
+load.utils()
+main()