Forgive me I was speaking a bit too loosely. I really meant unicode-like encoding with 2 bytes per character. I believe UTF technically has variable length encoding, which Matlab does not use. I've also heard it described as the first 2 bytes of UTF Presumably someone that really understood the finer points of unicode would be able to answer this question.
Anything that exceeded 2 bytes in the output I replaced with a special "unrepresentable" character. That seemed to be the correct behavior based on my understanding of Matlab's character encodings. Ideally we could get more clarification on this, i. We would need to come up with a test to distinguish the two cases, of "first code points" or "UTF16 encoded".
This is in fact the correct UTF16 encoding of that symbol. This tells us that at least native2unicode translates into UTF Jim Hokanson on 24 Oct More Answers 3. Steven Lord on 23 Oct For purposes of this answer, I'm going to use the word "phrase" kind of liberally to mean a chunk of textual data.
That could be a character, a word, a sentence or phrase, a book, etc. A couple of differences that make string arrays more efficient to work with than char arrays:. With a string :. Yair Altman on 24 Oct Vote 3. Edited: Yair Altman on 24 Oct MatrixDisplay, matlab. Paren, matlab. As a class object, the new strings defines 3 dozen internal class methods, such as cellstr , char , split etc. The string class is defined with class attributes Sealed and RestrictsSubclassing, to ensure that nobody can override its behavior.
Moreover, TMW was extra-careful way more that it usually is to close most of the doors that can be used to access the internals. It's no wonder that MathWorkers on this page ignore the explicit repeated requests for information about the internals. The internal string data is stored inside a class property called "data", which is private and hidden and so is not regularly accessible except via the class methods.
Stephen on 24 Oct Hopefully this will prompt more investigation. I think with Walter's answer and this one together answer my question completely. For reference, this info can be found by digging through:. Sruthi Geetha on 23 Oct Vote 2. The main difference between strings and character arrays is that strings can be considered a complete object, where as character arrays are a vector of chars. Therefore, the latter you can access individual characters via indexing whereas in the former case, you cannot.
Error: Index exceeds matrix dimensions. Stephen on 23 Oct Sruthi Geetha: this does not answer the question in any way whatsoever, as you do not clarify the "internal differences" that the title requests. Jim Hokanson already quotes the documentation in the question, so repeating information that can be gleaned from the help is hardly telling us what we all want to know: what are strings like inside : how are they stored in memory, which what encoding, how are they related to any other data types?
The difference between array and string is that an array is a data structure capable of holding variables of any data type, while a string is an object that can only deal with the char data type. An array is one of the most basic types of data structures that are present in programming. An array is a very fundamental unit in programming and is present in a lot of programs in order to deal with variables and process them, usually in an iterative manner.
However, the most important use for arrays usually is calculation purposes. Numerical values are entered one after the other, and then these values might get processed by one or more than one function, based on the program, which finally returns a zero, one, or more than one value in return. Data structures are the skeleton structure that tells us how a group of data is inserted, and exactly how will the operations in a function deal with these data items.
A few other important examples of data items are stacks, queues, linked lists, trees, etc. What is important to know is that one can treat these data structures as secondary data structures, as all of them can be created with the help of arrays only. Another important characteristic of arrays that one should know is that the size of arrays is pre-defined by the programmer or by the user before the array is actually used.
This is because arrays follow a method of iterative calculation. That is a counter moves through each object in an array to seek a certain object. Although I haven't tried it, I wouldn't expect that mex files support strings. This might be a string array question and not something specific to strings vs chars.
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