Plot line-chart on the left axis uper the bar-chart on the right axis

Question

In a graph with two y axis, one for a line plot (left) and one for a bar-chart (right), I would like that the bar-chart get under the line chart for a better visibility inst

Answer 1

Wrapping @Kouichi C. Nakamura's excellent answer up in a convenient function that applies this to all lines of an axis, gets:

function ax = setZData(ax,val)
    ax = arrayfun(@(x)setZData_ax(x,val),ax);

    function ax = setZData_ax(ax,val)
        ax.ZData = val*ones(size(ax.XData));
    end
end

Or a complete wrapper

function varargout = plotLeftOverRitht(LR,varargin)
% wrapper to plot the left axis of dual-axis plot over the right axis

%% process input
% input string
if strcmpi(LR,'left')
    LR = 'left';
    val = 1;
elseif strcmpi(LR,'right')
    LR = 'right';
    val = 0;
else
    error('plotLeftOverRitht:Input:LR',"The first input must be either 'left' or 'right'.")
end

% input: axis handle?
if isa(varargin{1},'matlab.graphics.axis.Axes')
    ax = varargin{1};
    varargin = varargin(2:end);
else
    ax = gca;
end

%% main function
% activate left axis
yyaxis( ax, LR);
% call plot
lines = plot(   ax, varargin{:});
% set height
setZData(lines,val);
% set sorting order
set(ax, 'SortMethod', 'depth')

%% output
if nargout > 0
    varargout = ax;
end
end

This changes example above to be

days = 0:5:35;
conc = [515 420 370 250 135 120 60 20];

figure
plotLeftOverRitht('left', days,conc, 'LineWidth',4)
plotLeftOverRitht('right', days,fliplr(conc), 'LineWidth',4)