MATLAB: Error using sscanf Invalid format.

error

this is my code and i am gettin the above mentioned error help would be apreciated
        % Button pushed function: SelectFileButton
        function SelectFileButtonPushed(app, event)
            [F,P] = uigetfile();
            Results1 = fullfile(P,F);
            Results2 = fopen(Results1);
            Results4 = [0,0,0];
            FlowRatePulse = [];
            Pressure = [];
            n = 0;
            Time = 0;
            while n >= 0
                n = n+1;
                Results3 = fgetl(Results2);
                Results5 = sscanf(Results3,Results4);
                Pressure(n) =((-0.2+Results5(1,1))/0.0018)/5;
                FlowRatePulse(n) = Results5(1,2)/330;
                Time = Time + Results5(1,3);
                
                
                
            end
            plot(app.UIAxes,Pressure,FlowRatePulse,'o')
            plot(app.UIAxes2,Time,Pressure,'o')
            plot(app.UIAxes3,Time,FlowRatePulse,'o')
        end

Best Answer

The sscanf documentation explains its syntax as "A = sscanf(str,formatSpec) reads data from str, converts it according to the format specified by formatSpec..." and also specifies that " formatSpec can be a character vector in single quotes, or a string scalar."
Rather than following what the documentation requires, you have defined the format specifier as the numeric vector [0,0,0]. Instead of a numeric vector, you should be providing a character vector or a string scalar, as the documentation states. The documentation also has plenty of examples of the format specifier.
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