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Accuri2svg is a command line program for the conversion of Accuri .c6 flow cytometry data files to the standard .fcs format.

Basic usage

Usage is not exactly straightforward, however it is quite powerful. The best approach is to gradually build up the matching regular expressions to get to your target files. If your sample naming is particularly weird, you might need to do >1 run.

In it's standard configuration it will find all .c6 files in the current directory, match every sample name outputting .fcs files named [filename.c6]_[row|column].fcs. This is probably perfectly fine for most uses.

Usage: [options]

  -h, --help            show this help message and exit
  -f FILE.c6, --filename=FILE.c6
                        match to find filename(s) to convert supports
  -n NAME_REGEXP, --name-regexp=NAME_REGEXP
                        regexp pattern match to split Sample Name (customise
                        this together with output path pattern to file in
                        pattern for resulting output path (based on named
                        strings in -n regexp)
                        pattern for resulting output filename (based on named
                        strings in -n regexp)
  -t TARGET, --target=TARGET
                        target folder in current folder to copy resulting fcs
  -d DIRECTION, --direction=DIRECTION
                        process data (c)olumn wise or (r)ow wise
  --fill                fill in data from previous column/row contents (e.g.
                        header will apply to all subsequent in column)
  --fill-all            fill in data from any previous cell (first header will
                        apply to all subsequent)
  --discard             discard samples where no name regex matches

More complicated usage

Named regular expression matching can be used to extract variables from the Sample Names. For example, you may want to search for a particular condition and then use this for the destination folder of the resulting .fcs file, or to build the output file name.

Additionally, you can use the fill options together with direction, to pre-fill data not present for a given sample. This is useful if you've labelled your first sample in a row but then only labelled subsequent changes.

A few examples are listed below (indented for clarity)

    -n '^(?P<treatment>\d+TT)\s+?(?P<patient>SI?R?[0-9]+)\s+?(?P<timepoint>Pre Op\d+|D\d+|M\d+|\d+)$'
    --op '%(patient)s'
    --on '%(treatment)s_%(timepoint)s_(%(id)s)_%(file)s.fcs'
    -t '/Volumes/USB-HDD/MM/fcs'
    -f '*.c6' 

0TT  S32 D14

In the above example we get all .c6 files in the current folder. We match possible variables in the target sample names, extracting 3 variables 'treatment', 'patient' and 'timepoint'. The patient identifier is used for the output path, the treatment and timepoint (together with the row/column identifier e.g. A6 from the Accuri file and the origin filename - two always available variables). Non-matching samples are discarded (rather than moved to a 'everything else' folder) on the target volume.

While it looks horrendous, if you build it up bit by bit it's really very logical.


GPML2SVG is available free for any use under the New BSD license.


Accuri2svg is a command line program for the conversion of Accuri .c6 flow cytometry data files to the standard .fcs format.




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