MATLAB: How to convert a string contains number seperated by commas into a matrix of numbers

matrix

if a string s='6,7,8,9,19' how can i convert it as matrix=[6 7 8 9 19]

Best Answer

s='6,7,8,9,19' ;
matrix = str2num(s);

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MATLAB: How to generate a nearly symmetric matrix

Just generate first a symettric matrix then perturb a "the overwhelming minority" of elements.

Whatever that definnition means.

>> T=randi(9,10,10);
>> T=randi(9,10,10);
>> S=T+T'
S =
     4    13     4     9    10    10    11     9    12    16
    13     2    12    18     8     9     9    13     4    11
     4    12     2     9    12    17     4    12    10    13
     9    18     9     6     7    11    12     7     7     6
    10     8    12     7     8     6     4     3     9     8
    10     9    17    11     6    10     6    11     6     5
    11     9     4    12     4     6    18    15    10     6
     9    13    12     7     3    11    15    14    12    10
    12     4    10     7     9     6    10    12    16     9
    16    11    13     6     8     5     6    10     9    16
 
>> S(randperm(numel(S),10))=randi(10,1,10)
S =
     4    13     4     9    10    10    11     9    12    16
    13    10    10    18     8     9     9    13     4    11
     4    12     2     9    12    17     4    12    10    13
     9    18     9     6     7    11    12     7     7     6
    10     8    12     7     8     6     4     3     9     8
    10     9    10    11     6    10     6    11     6     5
    11     9     4    12     5     6    18    15    10     6
     9    13     5     7     3    11    15    14    12    10
    12     4    10     7     9     6     2    12    16     9
    16    11     2     3     8     4     6    10     9     5

MATLAB: How to fill the area between these two curves? I tried using fill function along with the flipud and fliplr function but the problem is both the curves have different x and y value.s.

Try this:

figure
plot(x1, y1,    x2, y2)
hold on
patch([x1; flipud(x2)], [y1; flipud(y2)], 'g')
hold off

They are column vectors, so you need to concatenate ‘x1’ with the flipped version of ‘x2’, and the same for ‘y1’ and ‘y2’ (where (x1,y1) are the first curve, and (x2,y2) the second curve).

EDIT — Added plot image.

Best Answer

Related Solutions

MATLAB: How to generate a nearly symmetric matrix

MATLAB: How to fill the area between these two curves? I tried using fill function along with the flipud and fliplr function but the problem is both the curves have different x and y value.s.

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