diff --git a/R/greedyPopMix.R b/R/greedyPopMix.R
new file mode 100644
index 0000000..cb8c660
--- /dev/null
+++ b/R/greedyPopMix.R
@@ -0,0 +1,88 @@
+#' @title Clustering of pop individuals
+#' @param data data file
+#' @param format Data format. Format supported: "FASTA", "VCF" ,"BAM", "GenePop"
+#' @param verbose if \code{TRUE}, prints extra output information
+#' @param partitionCompare a properly-named list. Proper names include
+#' "partitions"
+#' @importFrom utils read.delim
+#' @importFrom vcfR read.vcfR
+#' @importFrom Rsamtools scanBam
+#' @importFrom adegenet read.genepop .readExt
+#' @references Samtools: a suite of programs for interacting
+#' with high-throughput sequencing data. <http://www.htslib.org/>
+#' @export
+greedyPopMix <- function(data, format, partitionCompare = NULL, verbose = TRUE) {
+  # Replacing original file reading code with greedyMix()
+  greedyMix(data, format, verbose)
+  # TODO: find out where the elements above come from. Maybe greedyMix should create them?
+  c <- list()
+  c$data <- data
+  c$rows <- rows
+  c$alleleCodes <- alleleCodes
+  c$noalle <- noalle
+  c$adjprior <- adjprior
+  c$priorTerm <- priorTerm
+  c$dist <- dist
+  c$Z <- Z
+  c$rowsFromInd <- rowsFromInd
+  #  partition compare
+  if (!is.null(partitionCompare)) {
+    nsamplingunits <- size(rows, 1)
+    partitions <- partitionCompare$partitions
+    npartitions <- size(partitions, 2)
+    partitionLogml <- zeros(1, npartitions)
+    for (i in 1:npartitions) {
+      # number of unique partition lables
+        npops <- length(unique(partitions[, i]))
+        partitionInd <- zeros(rows(end), 1)
+        partitionSample <- partitions[, i]
+        for (j in 1:nsamplingunits) {
+          partitionInd[c$rows[j, 1]:c.rows[j, 2]] <- partitionSample[j]
+        }
+        partitionLogml[i] <- initialCounts(
+          partitionInd, data[, 1:(ncol(data) - 1)], npops, c$rows, noalle,
+          adjprior
+        )
+    }
+    # return the logml result
+    partitionCompare$logmls <- partitionLogml
+  }
+  data = data(:,1:end-1);
+  data <- data[, 1:(ncol(data) - 1)]
+  changesInLogml <- writeMixtureInfoPop(
+    logml, rows, data, adjprior, priorTerm,
+    outp, inp, partitionSummary, popnames, fixedK
+  )
+  talle <- questdlg(
+    'Do you want to save the mixture populations so that you can use them later in admixture analysis?',
+    'Save results?', c('Yes', 'No'), 'Yes'
+  )
+  if (isequal(talle, 'Yes')) {
+    waitALittle()
+    filename_pathname <- uiputfile()
+    if (rowsFromInd == 0) {
+      # BAPS format was used, rowsFromInd is not known.
+      popnames_rowsFromInd <- findOutRowsFromInd(popnames, rows)
+      popnames_rowsFromInd$popnames -> popnames
+      popnames_rowsFromInd$rows -> rows
+      rm(popnames_rowsFromInd)
+    }
+    groupPartition <- PARTITION
+    fiksaaPartitioYksiloTasolle(rows, rowsFromInd)
+    c$PARTITION <- PARTITION
+    c$COUNTS <- COUNTS
+    c$SUMCOUNTS <- SUMCOUNTS
+    c$alleleCodes <- alleleCodes
+    c$adjprior <- adjprior
+    c$rowsFromInd <- rowsFromInd
+    c$popnames <- popnames
+    c$data <- data
+    c$npops <- npops
+    c$noalle <- noalle
+    c$mixtureType = 'popMix'
+    c$groupPartition <- groupPartition
+    c$rows <- rows
+    c$logml <- logml
+    c$changesInLogml <- changesInLogml
+  }
+}
diff --git a/R/waitALittle.R b/R/waitALittle.R
new file mode 100644
index 0000000..f448afc
--- /dev/null
+++ b/R/waitALittle.R
@@ -0,0 +1,4 @@
+waitALittle <- function() {
+  A <- rand(500)
+  invisible(gammaln(A))
+}