Data arrangement in vector - matlab

Question

I have the following vector:
Here is the code to produce this vector:
A = [11 115 167 44 51 5 6];
B = [100 1 1 87];
C = [2000 625];
D = [81 623 45 48 6 14 429 456 94];
E = [89];
F = [44 846 998 2035 498 4 68 4 1 89];
G = {A,B,C,D,E,F};
[max_val, idx] = max(cellfun(#numel, G)); % Find max sizes of vectors
% Create vector with zeros filling open matrix space
LeftIndented = zeros(idx,max_val);
for k = 1:numel(G), LeftIndented(k,1:numel(G{k})) = G{k}; end
I would like to have a vector with:
Data to the right (zeros to the left)
Centered data (surrounded with zeros)
(Notice that if data cannot be exactly centered, it is ok if it is off by one vector space to the left)
How can I achieve this?

Answer 1

You can pad each vector with zeros:
A = [11 115 167 44 51 5 6];
B = [100 1 1 87];
C = [2000 625];
D = [81 623 45 48 6 14 429 456 94];
E = [89];
F = [44 846 998 2035 498 4 68 4 1 89];
G = {A,B,C,D,E,F};
[max_val, idx] = max(cellfun(#numel, G)); % Find max sizes of vectors
% Create vector with zeros filling open matrix space
LeftIndented = zeros(idx,max_val);
Centered = zeros(idx,max_val);
RightAligned = zeros(idx,max_val);
for k = 1:numel(G)
LeftIndented(k,1:numel(G{k})) = G{k};
l = length(G{k});
padding = max_val - l;
leftPadding = floor(padding / 2);
Centered(k, :) = [zeros(1, leftPadding), G{k}, zeros(1, padding - leftPadding)];
RightAligned(k, :) = [zeros(1, padding), G{k}];
end
This is equivalent to
A = [11 115 167 44 51 5 6];
B = [100 1 1 87];
C = [2000 625];
D = [81 623 45 48 6 14 429 456 94];
E = [89];
F = [44 846 998 2035 498 4 68 4 1 89];
G = {A,B,C,D,E,F};
[max_val, idx] = max(cellfun(#numel, G)); % Find max sizes of vectors
% Create vector with zeros filling open matrix space
LeftIndented = zeros(idx,max_val);
Centered = zeros(idx,max_val);
RightAligned = zeros(idx,max_val);
for k = 1:numel(G)
LeftIndented(k,1:numel(G{k})) = G{k};
l = length(G{k});
padding = max_val - l;
leftPadding = floor(padding / 2);
Centered(k, 1 + leftPadding:leftPadding + l) = G{k};
RightAligned(k, 1 + padding:end) = G{k};
end
but in the second code the values of the vectors are written into the correct position in a zero vector.

Answer 2

A solution using strjust:
A = [11 115 167 44 51 5 6];
B = [100 1 1 87];
C = [2000 625];
D = [81 623 45 48 6 14 429 456 94];
E = [89];
F = [44 846 998 2035 498 4 68 4 1 89];
G = {A,B,C,D,E,F};
data = [G{:}];
N = cellfun(#numel, G);
M = max(N);
idx = char((N.' >= (1:M))+32);
Le = strjust(idx, 'left');
Ri = strjust(idx, 'right');
Ce = strjust(idx, 'center');
LeftAdjusted = zeros(M, N);
RightAdjusted = zeros(M, N);
Centered = zeros(M, N);
LeftAdjusted(Le.' ~= ' ') = data;
RightAdjusted(Ri.' ~= ' ') = data;
Centered(Ce.' ~= ' ') = data;
LeftAdjusted = LeftAdjusted.';
RightAdjusted = RightAdjusted.';
Centered = Centered.';