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Partek ® Flow ® software provides a built-in Large File Viewer to preview files generated by tasks within a project. The file types supported by the viewer are:
.bam | .sam | .bgx |
The Large File Viewer is particularly useful when you would like to:
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The way to access the viewer is through the Task details page. Select a rectangular task node and choose the Task details in the context-sensitive menu (Figure 1). You can also access the Task details from the bottom of any Task report.
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The Output files section of the Task details page shows the different files generated by the task (Figure 2).
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Note that since some filenames created by Partek Flow are generated by appending the filename of an input file, files may contain several file name extensions. The last extension is the actual file format for the file. In the example in Figure 2, the file in the first row (SRR1020608.fastq.bam) is a BAM file generated from a FASTQ file.
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Note that only files listed in the first section of this document are compatible with the viewer. If you select a file from the table that is not compatible (such as a zip file), the file will not be not previewed, but would be downloaded to your local drive.
Once you have made your selection from the radio buttons (Figure 3), click View Data. You also have the option to Download the selected file instead of previewing it.
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For raw data, the Large File Viewer will display an Output file preview in a scrollable window showing up to 1000 lines (Figure 4). The filename, filesize, and the name of the task that generated the file are also displayed.
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For BAM files, additional options are to display the headers that were generated by the aligners (Figure 5) and the samtools SAMtools flagstat summary statistics (Figure 6).
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Previewing an Imported File
There may be situations when you wish to preview files that were originally imported into a project. However the first data node in project (known as the origin data node) does not have any task details associated with it in the context-sensitive menu (Figure 7).
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To access the task details in an import task, go to the Log tab of the project and select the Import task in the table (Figure 8). Select the top level task Import (and not the Import unaligned reads).
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Selecting the Import from the Log table reveals the Task details and the file that was successfully imported (Figure 9). Note that even though the file has just been imported, it is placed under the Output files section because it has already gone through the import process of file validation and other file checks.
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To open the Large File Viewer, simply select the filename of the file you wish to preview as explained in the previous section.
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