How Do I Replace Numbers with Alphabets

I'm learning MATLAB and I want to know how i can change my code so instead of using:

n = 1:6 which displays '1, 2, 3, 4, 5, 6' and loops, for i = 1:n, which loops number sequence,

How do I substitute these with letters like "ABCDEF" or even a word such as "FORMAT"

Answer 1

[Jan]

The solution is trivial: Simply write it down using CHAR vectors (not strings, which are enclosed in double quotes):

n = 'ABCDEF'

n = 'ABCDEF'

for k = 'FORMAT'
    disp(k)
end

F
O
R
M
A
T

Answer 2

[Star Strider]

Use arrays —

w1 = {'A','B','C','D','E','F'};
w2 ='ABCDEF';
w3 = ["F","O","R","M","A","T"];

for k = 1:6
    L1{k,:} = w1{k}
end

L1 = 1×1 cell array
    {'A'}

L1 = 2×1 cell array
    {'A'}
    {'B'}

L1 = 3×1 cell array
    {'A'}
    {'B'}
    {'C'}

L1 = 4×1 cell array
    {'A'}
    {'B'}
    {'C'}
    {'D'}

L1 = 5×1 cell array
    {'A'}
    {'B'}
    {'C'}
    {'D'}
    {'E'}

L1 = 6×1 cell array
    {'A'}
    {'B'}
    {'C'}
    {'D'}
    {'E'}
    {'F'}

for k = 1:6
    L2{k,:} = w2(k)
end

L2 = 1×1 cell array
    {'A'}

L2 = 2×1 cell array
    {'A'}
    {'B'}

L2 = 3×1 cell array
    {'A'}
    {'B'}
    {'C'}

L2 = 4×1 cell array
    {'A'}
    {'B'}
    {'C'}
    {'D'}

L2 = 5×1 cell array
    {'A'}
    {'B'}
    {'C'}
    {'D'}
    {'E'}

L2 = 6×1 cell array
    {'A'}
    {'B'}
    {'C'}
    {'D'}
    {'E'}
    {'F'}

for k = 1:6
    L3{k,:} = w3(k)
end

L3 = 1×1 cell array
    {["F"]}

L3 = 2×1 cell array
    {["F"]}
    {["O"]}

L3 = 3×1 cell array
    {["F"]}
    {["O"]}
    {["R"]}

L3 = 4×1 cell array
    {["F"]}
    {["O"]}
    {["R"]}
    {["M"]}

L3 = 5×1 cell array
    {["F"]}
    {["O"]}
    {["R"]}
    {["M"]}
    {["A"]}

L3 = 6×1 cell array
    {["F"]}
    {["O"]}
    {["R"]}
    {["M"]}
    {["A"]}
    {["T"]}

Lic = cat(2,L1{:})

Lic = 'ABCDEF'

L2c = cat(2,L2{:})

L2c = 'ABCDEF'

L3c = cat(2,L3{:})

L3c = 1×6 string array
    "F"    "O"    "R"    "M"    "A"    "T"

.

[Clivano Rolle]

Wow thank you so much!

[Star Strider]

My pleasure!