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Browse investigations or search investigations until you find an investigation, a study, or an assay in which you are interested.
The search results appear.
Click the link corresponding with the investigation, study, or assay you are interested in exploring.
The respective investigation details, study details, or assay details page appears.- You can do the following from the details pages:
- Explore the data at every level of the investigation.
- Filter the data so that you can download selected data.
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- Open a Study Details page.
In the Visualize and Select area, click one of the entities.
Info title Study Hierarchy The hierarchy of entities for studies according to the ISA-Tab standard is as follows, from less granular to more granular:
Source > Protocol > Sample
For example, click Source. Metadata for that source appears.
Info Follow this same procedure if you want to filter on Protocol or Sample instead of Source.
- From the Source Name list, click the arrow to open the list of values. Each value is a Source Name from the study file, which in this case is s_mrna.txt.
- Click one or more values in the list to select them. Each value appears immediately below the Source Name box. To clear a selection, click the value again.
- Click Filter Results.
The Source Count reduces from the 40 original values in the unfiltered study file,s_mrna.txt, to the three selected in this procedure.
- Options you have at this point include continuing to explore this data set, downloading the metadata of the three values you selected, downloading the selected data of the three values you selected (which includes the metadata), or clicking Clear Filters to filter a different entity.
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- Open an Assay Details page.
In the Visualize and Select area, click one of the entities. Note that the width of some visualizations require you to scroll by clicking the arrows at the bottom of the page.
Info title Assay Hierarchy The hierarchy of entities for assays according to the ISA-Tab standard is as follows, from less granular to more granular:
Sample > Protocol > Data File
For example, click the sample. Metadata for the sample appears.
Info Follow this same procedure if you want to filter on protocol instead of sample.
- From the Sample Name list, click the arrow to open the list of values. Each value is a Sample Name from the assay file, which in this case is a_mrna_transcription_profiling_nucleotide_sequencing.txt.
Click one or more values in the list to select them. To select multiple values, click one, wait for it to appear on the Metadata for Sample page, and then click the arrow again to select another value. To clear a selection, click that value again.
Info Some entities do not have associated metadata fields on which you can filter the study or assay. In that case, when you click the icon for that entity, you see a message letting you know that no metadata fields are available.
- Click Filter Results.
The Sample Count reduces from the 39 original values in the unfiltered assay file, a_mrna_transcription_profiling_nucleotide_sequencing.txt, to the 5 selected in this procedure.
- Options you have at this point include continuing to explore this data set, downloading the metadata of the 3 values you selected, downloading the selected data of the 3 values you selected (which includes the metadata), or clicking Clear Filters to filter a different entity.
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A detailed search results window appears. The matching term, cell, is highlighted in the metadata of each file in the ISA-Tab archive.
To close the window, click Ok at the bottom or the x in the upper-right corner of the window.
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