# HG changeset patch # User peterjc # Date 1427729003 14400 # Node ID 8e86daf42b9cc4b33e1f9a75e1a21695df759896 # Parent 2e96bf82b463af378632e1e45f6b3a56f4b132ad Uploaded with disclaimer and known issues in README diff -r 2e96bf82b463 -r 8e86daf42b9c README.rst --- a/README.rst Mon Mar 30 11:07:48 2015 -0400 +++ b/README.rst Mon Mar 30 11:23:23 2015 -0400 @@ -14,6 +14,7 @@ This is an example workflow using the Galaxy wrappers for NCBI BLAST+, see https://github.com/peterjc/galaxy_blast + Galaxy workflow for counting species of top BLAST hits ====================================================== @@ -83,6 +84,37 @@ Note the nematode count in this image was shown as a mouse-over effect. +Disclaimer +========== + +Species assignment by top BLAST hit is not suitable for any in depth +analysis. It is particularly prone to false positives where contaiminants +in public datasets are mislabled. See for example Ed Yong (2015), +"There's No Plague on the NYC Subway. No Platypuses Either.": + +http://phenomena.nationalgeographic.com/2015/02/10/theres-no-plague-on-the-nyc-subway-no-platypuses-either/ + + +Known Issues +============ + +This workflow uses the Galaxy "Count" tool, version 1.0.0, as shipped with +the current stable release (Galaxy v15.03, i.e. March 2015). + +The updated "Count" tool version 1.0.1 includes a fix not to remove spaces +in the fields being counted. In the example above, while the top hits are +not affected, minor entries like "cellular slime molds" are shown as +"cellularslimemolds" instead (look closely at the Pie Chart key).. + +The updated "Count" tool version 1.0.1 also adds a new option to sort the +output, which avoids the additional sorting step in the current version of +the workflow. + +A future update to this workflow will use the revised "Count" tool, once +this is included in the next stable Galaxy release - or migrated to the +Galaxy Tool Shed. + + Availability ============