Reading a text file with variables and parentheses between

Hello everyone,

I need that MATLAB read a text file in the format below, and seperate each variables with corresponding numerics, and write it back with the format of the text file again. I want to add another variable with the same number of numerical values and write it back to its initial format to be read again by my program.

species 1
species 2
species 3
(0.1
0.2
0
)
(.02
.1
.5
)
(0.1
.2
.3
)

Then, I want to add Species 4 with some numerical values in the same format as othe variables.

Thank you so much.

Answer 1

[Walter Roberson]

S = fileread('YourFile.txt');
S = regexprep(S, '\)', '%g\n)');

newS = compose(S, ValuesForSpecies4);

fid = fopen('NewFile.txt', 'w');
fwrite(fid, newS);
fclose(fid);

My guess is that you will want to go slightly further and also insert the name of the 4th species. Possibly with something like

S = regexprep(S, '\(', 'name of species 4\n(', 'once');

[Mahdi Khademishamami]

Hi Walter,

Thank you so much for the answer. I inserted your script in MATLAB, and it give me S as a character with htis output

species 1species 2species 3(0.10.20%g)(.02.1.5%g)(0.1.2.3%g)

What I want is actually identify and seperate the variables like Species 1=[0.1,0.2,0], Species2=[0.02,.1,.5], species3=[0.1,0.2,0.3], then add species4=[0,0,0] and then put it back at the same format like below

species 1

species 2

species 3

species4

(0.1

0.2

0

)

(.02

.1

.5

)

(0.1

.2

.3

)

(0

0

0

)