week 2 (28 April-4 May 2014)

At the begin of this week I started to make a good summary of the publication of my chosen dataset from which I run the quality rapport with array analysis.

I also showed my quality rapport  that week together with Egon Willighagen, Bart Smeets and discuss my founded quality rapport of the array analysis. After the discussion it could be concluded that we better could delete one of the baseline subject because this one was an outliner in all the founded tables and graphs. This can also have effect on the other results (subjects). So I run the analysis again without subject B11. The quality rapport was better, but still not what we wanted.

The green dot on the botom is Baseline 11

The green one at the top is Baseline 11 

  

 

It can be seen in these MA plots that the expression of the array in Baseline 11 clearly differs from the other Baseline. As example taken Baseline 10, 12 and 13, but the rest was comparable.

 

Also in in de correlation data, baseline 11 was clearly different.

 

Later that week Lars Eijssen took a look at the rapport and further discuss it with Egon Willighagen, Bart Smeets and some other members of the department of bioinformatics at the Maastricht University. Lars advise me to split my dataset in two different groups. Because the subjects of this research came from different countries (VS and Africa) and because they also had two different project.

In this case the first dataset would contain a group from the VS that first was the baseline group and then got infected with Malaria and became the experimental group from which the pre-symptomatic effect of Malaria where compare against the baseline.

The second group would consist only subjects from Africa from which acute malaria was compared against a group with treated malaria.

At the end of this week Lars Eijsen gave a statistical lecture which all interns could (and others) from department bioinformatics could join.