function in a script...

I am having trouble including a function in my script. It gives:

Undefined function 'PlotNewFig' for input arguments of type
'matlab.graphics.axis.Axes'. 
Error while evaluating Axes ButtonDownFcn

Here's the code:

...code to load "num" removed...
% savitzky-golay
figure
for nn = 2:ncol
    nreversal=0;
    bin= num(1,nn);
    for mm=2:nrow-1 % look for points where load increases going outboard
        if num(mm+1,nn)-num(mm,nn) > 0
            fprintf('found reversal %f kNm %d deg.\n',num(mm+1,nn),bin);
            nreversal=1;
        end
    end
    y = sgolayfilt(num(2:end,nn), 3, 27);
    h3(nn-1)=subplot(6,4,nn-1);
    if nreversal==0
        plot(num(2:end,1),num(2:end,nn),'b.',num(2:end,1),y,'w-')
        set(h3(nn-1), 'ButtonDownFcn', {'PlotNewFig', num(2:end,1),num(2:end,nn),'b.',num(2:end,1),y,'w-',strcat('sgolayfilt(3,27) bin:',num2str(round(bin,0)))})
    else
        dy=y(:)-num(2:end,nn);
        py=y(:)./num(2:end,nn)-1;
        y(:)=y(:)+(-50-min(dy));
% check 5% rule too!
        plot(num(2:end,1),num(2:end,nn),'b.',num(2:end,1),y,'r-')
        set(h3(nn-1), 'ButtonDownFcn', {'PlotNewFig', num(2:end,1),num(2:end,nn),'b.',num(2:end,1),y,'r-',strcat('sgolayfilt(3,27) bin:',num2str(round(bin,0)))})
    end
    title(bin)
end
ha = axes('Position',[0 0 1 1],'Xlim',[0 1],'Ylim',[0  1],'Box','off','Visible','off','Units','normalized', 'clipping' , 'off');
text(0.5, 0.98,'sgolayfilt(3,27)');

function m = PlotNewFig(varargin)

        figure('Name',varargin{9});
        plot(varargin{3}, varargin{4} ,varargin{5}, varargin{6},varargin{7}, varargin{8})

end

Maybe I need to declare something?

Answer 1

[Stephen23]

Do not supply the function as a string: this syntax is basically deprecated, and is discouraged in the documentation: "Defining a callback as a character vector is not recommended. The use of a function specified as function handle enables MATLAB to provide important information to your callback function."

source: https://www.mathworks.com/help/matlab/creating_plots/callback-definition.html

Use a function handle, like this:

'ButtonDownFcn', {@PlotNewFig,....}

Note that you can replace the plot call with this:

plot(varargin{3:8})

[David Pesetsky]

Thanks. That's perfect.