I am very new to Galaxy and am learning about workflows with the final aim of making a workflow for RNAseq differential expression analysis.
I was wondering if someone could clarify for me the difference between a "Label" and "Dataset name".
- Is the Label the name you see for an individual dataset or collection in your history panel?
- Is the dataset name the actual "real name" that the file has?
An example might be clearer:
I have a history that looks like this:
99: FastQC on collection 79: Raw Data a list of 18 items 98: FastQC on collection 79: Webpage a list of 18 items 79: Trim Galore! on collection 40: trimmed reads a list of 18 items 42: FastQC on collection 40: RawData a list of 18 items 41: FastQC on collection 40: Webpage a list of 18 items 40: raw-fastq.gz a list of 18 items
The first item of this history, 40, was made by importing 18 fastq.gz files: sample1.fastq.gz, sample2.fastq.gz, sample3.fastq.gz etc and putting them into a simple (unpaired) collection called "raw-fastq.gz."
Now, when I click on "40: raw-fastq.gz", it shows all 18 fastq.gz files named as they were when they were imported: sample1.fastq.gz, sample2.fastq.gz etc. If I click on info (i symbol) for a given fastq.gz file, it will show "Name: sample1.fastq.gz". So far so good, all seems normal.
But when I click on 41: FastQC on collection 40: Webpage, it shows 18 files ALSO named sample1.fastq.gz.. But these files are not fastq.gz files, they are html reports! And when I click on a file, for example, sample1.fastq.gz, this time the info page will show "Name: FastQC on data 22: Webpage".
So I'm confused: are the names that appear on the history panel "Labels" and the real names of files (i.e. the ones used on the Galaxy server, let's say) found in the "Name:" entry of the info page? I find this distinction very confusing, especially when trying to build workflows in which you can change labels and names of outputs..
- When only working with simple datasets, it seems that Label = Name
- When working with collections, the Label is not always equal to the Name?