Changing a a value in table column dependent on another column.

In the table I would like column e to replace the the first two 78 with 1. The 1 value should match with column d and the 2 value.

e = [ 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 78 78 78 78 78 78 78 78 78 78]
e = e'

d = [ 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 56 56 56 56 56 56 56]
d = d'

tableh = table(e, d)

OUTPUT for current Table:
tableh =

  25×2 table

    e     d 
    __    __

     1     2
     1     2
     1     2
     1     2
     1     2
     1     2
     1     2
     1     2
     1     2
     1     2
     1     2
     1     2
     1     2
     1     2
     1     2
    78     2
    78     2
    78     2
    78    56
    78    56
    78    56
    78    56
    78    56
    78    56
    78    56

Answer 1

[SungJun Cho]

You can just do

e = [ 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 78 78 78 78 78 78 78 78 78 78];
e = e';
d = [ 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 56 56 56 56 56 56 56];
d = d';

e(d==2) = 1;

tableh = table(e,d);

to have value 1 in e whenever you have value 2 in d.