what is the difference between n={ } and n=[], and what are they?

only n={} can store string but n=[] can't?

Answer 1

[Paulo Silva]

{} is used for cells and [] for arrays (matrix) both can store strings but the arrays can't store strings and numeric values at the same time.

Square Brackets — [ ]

Square brackets are used in array construction and concatenation, and also in declaring and capturing values returned by a function

Curly Braces — { }

Use curly braces to construct or get the contents of cell arrays.

[Paulo Silva]

Look for more at Symbol Reference in your matlab documentation.

[Hello Blower]

so if I want to store both date_string and number in a single matrix, I should use the curly braces-{}.

what is the command to copy the content from arrays[] to cells{}?

should i use loop:

for i=1:10

for j=1:10

a{i,j}=b(i,j);

end

end

[Walter Roberson]

a = num2mat(b) will do the same thing as your loop.

[Hello Blower]

a is an array matrix <1241x11 double>

But,

>> z = num2mat(a)

??? Undefined function or method 'num2mat' for input arguments of

type 'double'.

>> clear z

>> z = num2mat(a)

??? Undefined function or method 'num2mat' for input arguments of

type 'double'.

[Walter Roberson]

Sorry, that should have been num2cell

[Hello Blower]

thank you