add a constant value for all columns for selected rows

Hi,

I need to add a constant value (7000) to a selected rows as identified by the logical array index. But, I want to perform something like shown in the example below.

Example:

A =

1010001   10   20   30   40   50  60 
1010002  100  200  300  400  500 600
1010003    5    6    7    8    9  10    
1010004    1    2    3    4    5   6   

B =
1010002
1010004

Output = 

1010001   10     20    30    40   50   60 
1010002  7100  7200  7300  7400 7500 7600
1010003    5      6     7     8    9   10     
1010004  7001  7002  7003  7004 7005 7006

I have a code as shown below BUT this does NOT produce the output I want like in C

i1z=ismember(A(:,1),B);
A=A(i1z,:)+7000;

Answer 1

[the cyclist]

You need

A(i1z,:)=A(i1z,:)+7000;

[Damith]

Thanks. That's exactly what I want.