MantisBT - MEGA
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IDProjectCategoryView StatusDate SubmittedLast Update
0006543MEGADistance Data Explorerpublic2024-04-11 09:222024-04-11 09:22
Reporterguest 
Assigned To 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusnewResolutionopen 
PlatformPCOSLinuxOS VersionRedHat
Product VersionMEGA 11 (Graphical Interface version) 
Target VersionFixed in Version 
First NameNitish
Last NameNarula
Emailnitish.narula@nih.gov
Confirm Emailnitish.narula@nih.gov
Summary0006543: Line Too Long error
DescriptionWe have a distance matrix in a .meg file created using megacc. The number of taxa is 9860. When importing it into the MEGA 11 GUI, we get an error saying "Line Too Long (in line 9895)".

Checking this line, 9895 is actually a blank line between the taxa labels section and the distance matrix section. But the next line, the first line of the matrix section, is a comment (in square brackets) with the column numbers or taxa numbers for the matrix. If we remove this line and try to open the meg file again, the same error shows up but the line number highlighted is 18984. Checking the number of characters in this line, it has 99988 characters. The next line has 99999 characters.

It looks like MEGA cannot read long lines and the limit is somewhere between 99988 and 99999 characters
Steps To ReproduceYou can download a gzipped distance matrix in meg format from google drive here: https://drive.google.com/file/d/1iKzb7xdXfXvterod9Jk4A8pfQISE2jCB/view?usp=sharing [^]

Note that this meg file does not have the comment line which shows the column number of the matrix in the matrix section.
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2024-04-11 09:22guestNew Issue

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