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Interactive Visualization of Needleman-Wunsch Algorithm in Javascript
the reported output alignment shows seq1 in the second row and seq2 in the first, which is kind of counterintuitive..
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The implementation present on http://experiments.mostafa.io/public/needleman-wunsch/ shows an incomplete traceback and alignment score.
e.g. try
seq1 CACCGG
seq2 AACACC
match 0
mismatch -1
gap -1
the output alignment
C A C C - -
C A C C G G
misses the leading "AA" from seq2
and reports a score of 2 (which is correct for the subalignment shown), while the DP matrix gives a global score of 0.
I guess, your traceback stops once it reaches row/col 0 and does not do the traceback to cell (0,0) as expected..
anyway, thanks a lot for the implementation! :)
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