Download Development of a protein quantification algorithm for data analysis

The problem of this idea was that sometimes this algorithm cut the real start
and end of the peptide as can be seen below:
Figure 33: Peptide’s Light (red) and Heavy (blue) peak in time on the left
image, and their ppm variance and ppm score (green) on the right image.
The orange line indicates the ppm score limit, this is the point where the
score goes from negative to positive. In these images can be seen that the
peptide’s bounds are smaller than what should be.
Algorithm 2: Priority on tendency
As in the first algorithm the boundings sometimes were established before
time, a change in the PPM Score algorithm was introduced. Now, the difference between the actual peak and its adjacent peaks will have more priority
than the difference between the other label counterparts.
As can be seen in figure 34, in most cases a better result than in the first
algorithm was obtained:
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