Read text file and load data to an array

I have a text file contains a variable name and value as showed

variable1 0.00069444
variable2 1440.00
variable3 7200.00
variable4 0.90
variable5 -2.00
variable6 -10.00
variable7 0.0002
variable8 0.00
variable9 90.00

I would like to read this text file and store into an array, for example

A = variable1 0.00069444
    variable2 1440.00
    variable3 7200.00
    variable4 0.90
    variable5 -2.00
    variable6 -10.00
    variable7 0.0002
    variable8 0.00
    variable9 90.00

Thanks for your help

Answer 1

[Guillaume]

A lot simpler

t = readtable('C:\somewhere\somefile.ext', 'ReadVariableNames', false);

that's it. However, I'd then give the column some meaningful names, e.g.:

t.Properties.VariableNames = {'Name', 'Value'};

Answer 2

[Ameer Hamza]

If you just want to read the text, then run

data = fileread(filename);

But if you want to extract numeric data, the following code will extract it save it into an array

f = fopen(filename);
data = textscan(f,'%s');
fclose(f);
variable = str2double(data{1}(2:2:end));

instead of accessing it like variable1, variable2,... You can access by using indexing like variable(1), variable(2), .... The array style is MATLAB recommended style and is also much better as compared to giving a different name to each variable.

[Thanh Cao]

It works, thanks for your help

[Ameer Hamza]

You are welcome.

[Taylor Fulton]

No. This spits out values that look nothing like any of the numbers in the text file.

[Taylor Fulton]

f = fopen('Class15_voltage');

data = textscan(f,'%s');

fclose(f);

variable = str2double(data{1}(2:2:end));

It functioned a moment ago but spat out numbers from kirby's dreamland. Now it just spits out errors.

Answer 3

[Thanh Cao]

Thank you Guillaume, this is awesome.