I will use a genechip indentified by GSE4330m
GEO(http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi).

However the GSE1133 has 3 platforms:GPL81,GPL82,GPL83,it has 21 samples
every platform.if the GPL81 has a gene (7157) which is not including in
GPL82 and the GPL82 has a gene (7156) which is not including in
GPL81 ,however  GPL83 has both of them ,how can i caculate the pearson
coefficient
between the gene 7157 and 7156?

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