What does corelation mutation matrix indicates?

Question

[xxxxxxxx]

                     MU101188     MU101310  MU101326    MU1045462
    MU101188            1             -0.006     -0.006     -0.006
    MU101310       -0.006              1         -0.006      0.006
   MU101326        -0.006         -0.006          1         -0.006
    MU1045462           1          -0.006        -0.006          1

What does these negative,positive and 1 correlation means?

[WouterDeCoster]

If your question fits in one sentence then you probably did not explain it sufficiently. Please elaborate on how you obtained this matrix.

[Benn]

Try to search wiki first, correlation is well explained there.