modify table value = In an assignment A(:) = B, the number of elements in A and B must be the same.

I get this error when trying to pad the values of one column of my table with zeros.

In an assignment A(:) = B, the number of elements in A and B must be the same.

grnd_truth_table = readtable('ground_truth.txt','Delimiter',' ','ReadVariableNames',false);
%
for i=1:size(grnd_truth_table,1)
   buf = sprintf('%06i',grnd_truth_table.Var1(i));
   grnd_truth_table.Var1(i) = buf;
end

grnd_truth_table.Var1 are all integers.

Answer 1

[Image Analyst]

If Var1 is a string variable in your table, then because you're assigning a string "buf" to it, maybe you need

grnd_truth_table(1, "Var1") = buf;  % Maybe {} instead of ()???

You forgot to attach 'ground_truth.txt' so I can't really try anything for you. Good luck though.

Can you even do this:

grnd_truth_table.Var1(i)

when you try sprintf() or does that bomb?