Include all possible combinations in loop?

I want my code to compare a user input to eight values, find the ones greater than the user input and extract the corresponding columns from a matrix 'ConcreteData'. I then want it to return these columns in a new matrix called 'Sub_ConcreteData'. Presently, I am having to type a line of code for every possible combination which is very long and can accidentally omit a combination. Below Code shows what I would like it to do, whereby the code automatically searches through every possible combination from my R2 values and presents the new matrix.

CODE

%% 'ConcreteData' (matrix 1030x8)
R2_all = (value1,value2,value3,value4,value5,value6,value7,value8) %%pre-defined values
exit = false;
msg = 'Please enter an R^2 value:';
if ~exit
    data = str2double(inputdlg(msg));
    exit = (0 <= data & 1 >= data)  %%user input
    
    if ~exit
        msg = 'Input must be between the values 0-1. Please re-enter: ';
    end
    if data > R2_all %% check all 8 values against user input
        disp([]) %%return new matrix called 'Sub_ConcreteData', with any combination/number of columns from orignal matrix 'ConcreteData'
        
    end    
end

Answer 1

[Matt J]

%% 'ConcreteData' (matrix 1030x8)
R2_all = (value1,value2,value3,value4,value5,value6,value7,value8) %%pre-defined values
exit = false;
msg = 'Please enter an R^2 value:';
while ~exit
    data = str2double(inputdlg(msg));
    exit = (0 <= data & 1 >= data)  %%user input
    
    if ~exit
        msg = 'Input must be between the values 0-1. Please re-enter: ';
    end
    
end


Sub_ConcreteData=ConcreteData(:, data > R2_all)

[Lauren-Xante Claassen]

Thanks Matt, but it is a returning this error:

R2_all = (value1,value2,value3,value4,value5,value6,value7,value8);

↑

Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

Why won't it recognise my pre-defined values?

[Matt J]

I just repeated what you wrote...

[VBBV]

R2_all = [value1,value2,value3,value4,value5,value6,value7,value8];

[VBBV]

@Lauren , Use a [ ] concatenation operator for R2_all instead of () parenthesis for the matrix.

[Lauren-Xante Claassen]

Thank you both!!!