could anyone help me to display the values in the matrix which are greater than the average value for the following code

code:

A=[3.3734    5.1245    4.3729    2.8406    6.5283    4.8144    2.9305    6.8098    2.8633    4.2790    6.3190    5.7503    5.4061    6.0009  9.3549]
B=sum(A)
C=numel(A)
D=B/C

When i run the code the value of D is found to be 5.1179

so i want to display A such that the values present in A should be greater than 5.1179 and hence

A = [5.1245 6.5283 6.8098  6.3190    5.7503    5.4061    6.0009  9.3549]

could anyone please help me on this.

Answer 1

[Stephan]

B, C and D are not needed, if you use the inbuilt function mean:

A=[3.3734    5.1245    4.3729    2.8406    6.5283    4.8144    2.9305    6.8098    2.8633    4.2790    6.3190    5.7503    5.4061    6.0009  9.3549]
A = A(A>mean(A))

results in:

A =

  Columns 1 through 8

    3.3734    5.1245    4.3729    2.8406    6.5283    4.8144    2.9305    6.8098

  Columns 9 through 15

    2.8633    4.2790    6.3190    5.7503    5.4061    6.0009    9.3549


A =

    5.1245    6.5283    6.8098    6.3190    5.7503    5.4061    6.0009    9.3549

[jaah navi]

with respect to the above code the mean(A) is 5.1179

so I need to select the values which are greater than 5,which means values from 6 - 6.5283 6.8098 6.3190 6.0009 and values from 9-9.3549 should be selected.

Could you please help me on this.

Answer 2

[Inho Kim]

Hi Jaah,

You can use logical index.

ind = A > D;   % find indices when each value of A is bigger than D
AA = A(ind);   % extract element from A vector

Thanks,

Inho