fix: omit deeptools_qc also for scRNA-seq in case of single samples

workflows/scRNAseq/Snakefile

@@ -46,7 +46,19 @@ def run_Trimming(trim):
 def run_bamCoverage():
     return( expand("bamCoverage/{sample}.coverage.bw", sample = samples) )
 
-
+def run_deeptools_qc():
+    file_list = [
+    expand("bamCoverage/{sample}.RPKM.bw", sample = samples),
+    expand("bamCoverage/{sample}.coverage.bw", sample = samples),
+    "deepTools_qc/plotEnrichment/plotEnrichment.png",
+    "deepTools_qc/plotEnrichment/plotEnrichment.tsv"]
+    if len(samples)>1:
+        file_list.append( ["deepTools_qc/multiBigwigSummary/coverage.bed.npz",
+                          "deepTools_qc/plotCorrelation/correlation.pearson.bed_coverage.heatmap.png",
+                          "deepTools_qc/plotCorrelation/correlation.spearman.bed_coverage.heatmap.png",
+                          "deepTools_qc/plotPCA/PCA.bed_coverage.png"] )
+    return(file_list)
+
 ### execute before workflow starts #############################################
 ################################################################################
 onstart:    
@@ -93,15 +105,7 @@ rule all:
         expand("Counts/{sample}.featureCounts_summary.txt",sample = samples),
         "Results/all_samples.gencode_genomic.coutt_merged.csv",
         "QC_report/QC_report.all_samples.libstats_reads.tsv",
-        expand("bamCoverage/{sample}.RPKM.bw", sample = samples),
-        expand("bamCoverage/{sample}.coverage.bw", sample = samples),
-        "deepTools_qc/plotEnrichment/plotEnrichment.png",
-        "deepTools_qc/plotEnrichment/plotEnrichment.tsv",
-        "deepTools_qc/multiBigwigSummary/coverage.bed.npz",
-        "deepTools_qc/plotCorrelation/correlation.pearson.bed_coverage.heatmap.png",
-        "deepTools_qc/plotCorrelation/correlation.spearman.bed_coverage.heatmap.png",
-        "deepTools_qc/plotPCA/PCA.bed_coverage.png",
-
+        run_deeptools_qc(),
 rule annot:
     input:
         "Annotation/genes.filtered.bed",