Replace String in Character Array with complete Character Array (100x100)

I have following string in a 1x287000 character array:

I would like to replace the String "coordIndex" with a complete 100x100 character array.

With strrep I have to specify the string I'd like to insert:

new_str = strrep(new_str,'coordIndex','something_else');

I tried this but that doesn't work obviously (u is the 100x100 character array):

new_str = strrep(new_str,'coordIndex', u );

I couldn't find any solution to this problem so far.

Answer 1

[Image Analyst]

You cannot insert a 100x100 2-D matrix into a 1x287000 row vector.

You can only insert it into a matrix that has at least 100 rows, not into a vector of only a single row. I mean, where would the lower 99 rows go???

You can turn that 100x100 into a row vector also and then insert it. Would that be acceptable?

output = [vec1(1:index), vec2(:)', vec1(index+1, end)];

index is the index after which you wish to insert the other elements. Would the above be acceptable?

[Daniel Rohrer]

Yeah that would be acceptable. Somehow I cannot follow you with the index part, do I have to create a variable first? I get following errors:

>> p = new_str(1:coordIndex);
Undefined function or variable 'coordIndex'.
 
>> p = new_str(1:'coordIndex');
Error using  : 
For colon operator with char operands, first and last operands must be char.
 
>> p = new_str(1:"coordIndex");
Undefined operator ':' for input arguments of type 'string'.

I'm not that adept with MATLAB^^

[Image Analyst]

You need your vector, and your 2-D matrix. What are the names of those two variables? I just assumed they were vec1 and vec2. Replace them with whatever your names are. You also have to define coordIndex. Maybe try

coordIndex = [0, 1, 2, 3, -1;...
    4, 5, 6, 7, -1];
index = strfind(vec1, coordIndex(:)');

[Daniel Rohrer]

My vector and matrix are named as following:

I defined now the coordIndex like this (extracted from new_str):

coordIndex = extractBetween(new_str,"coordIndex [","]");

Now the code should look like this:

index = strfind(new_str, coordIndex(:)');

With this my index is basically empty:

------------------------------------------------------------------------------------------------------------------------------------

I have another issue with the creation of the vector from the matrix, yesterday it somehow worked, but now I cleared the workspace and loaded it newly, but the vector is not what I intend:

output = u(:).';

I tried following code but same result:

n = size(u);
output = reshape(u,[1,(n(1:1)*n(2:2))]);