How to convert character matrix into numeric matrix ? Can you share code for that?

I have created a matrix that accepts the text file called pub.txt and content in that file is Hello word alone..and displayed it .

str=fileread('pub.txt')

str =

Hello Bava

Hi Hi

Hi Hi

Now, I want to convert this character matrix into numeric matrix ? Plz help

[Chafik Zerrouki]

Did you try with str2num() ?

It will Convert character array to numeric array.

[bavani marimuthu]

can you explain me with the example?

[bavani marimuthu]

I want it for character matrix into numeric matrix , Not for Array?

[Rik]

Apparently it is time for an important lesson every programmer must learn at some point: RT(F)M (read the manual). There are some examples you can find in the documentation for str2num. (If you're operating on scalars, use str2double instead. Use %#ok to suppress the m-lint warning.)

PS array and matrix are more or less interchangeable terms in Matlab

[Adam]

Technically a matrix is 2d and an array is nd in Matlab, but array includes matrix.

[Guillaume]

What numeric output are you hoping to get out of

 str = 
   Hello Bava
   Hi Hi
   Hi Hi

Are you looking at getting the codepoint of the characters or something else?

[bavani marimuthu]

I have created a matrix that accepts the text file called pub.txt code: str=fileread('pub.txt')

Now, I want to convert this character matrix into numeric matrix ? Plz help

[Stephen23]

@bavani marimuthu: Guillaume asked you a question. Here it is again:

"What numeric output are you hoping to get..?"

Please show us what numeric output you expect to get from those characters.

[bavani marimuthu]

The output I except is this... 100 101 0 0 0 0

[Rik]

I can't see a way the string below will result in [100 101 0 0 0 0], so you'll have to explain that.

 str = ['Hello Bava';'Hi Hi     ';'Hi Hi     '];

If your strings contain only numeric values in a char representation (like str='100 101 0 0 0 0';), then using str2num will do the trick.

[Stephen23]

"If your strings contain only numeric values in a char representation (like str='100 101 0 0 0 0';), then using str2num will do the trick."

Although using sscanf would be faster and more secure:

>> str = '100 101 0 0 0 0';
>> sscanf(str,'%f')
ans =
 100
 101
   0
   0
   0
   0

[bavani marimuthu]

Thank you..... :-)

[bavani marimuthu]

If my .txt file contains the character called 'Hello' .. Then Whether is there any possibilities to convert it into numeric matrix from character matrix which contains the character in it..

[Stephen23]

double('Hello')

will convert the char matrix into a numeric matrix.