Download Quiz 2 – (5%) – Using Matlab With a vast number of genes

Quiz 2 – (5%) – Using Matlab
With a vast number of genes information produced by microarray, informative gene selection is
needed to both decrease clinical costs and mitigates the possibility of overfitting due to high intervariable correlations.
Patient
1
2
3
4
5
Status
1
1
0
1
0
GeneTypes
A,C,E,F
B,D,E,G
D,G,I,K
C,F,E,K
B,C,D,G
1. Assign the given 5 patients with their survival status (0 = survive, 1 = dead) and gene types into 2
or 3 arrays. (Use cell array for gene types). (1.5 marks)
2. Select the patients with Status =1 and display them. (1 mark)
3. Find the highly related genes which might shorter the survival time for the patients:


Compare thegenes among the selected patients and display the common gene (1.5 marks)
Get and display the genes that appeared most among the selected patients. (1 mark)
Note:
1st Q: Because the gene types are String, Cell Array is used to store strings. Normal array only can
store numeric variables.
3rd Q: The selected patients are with the Status = 1, which are patient 1,2 & 4 (From question 2).
Compare the genes among 1, 2, & 4, and display the same gene, for example: E. Then display the
gene appeared most among the 3 patients.