x axis labels not properly working

I am having trouble getting the x axis tick marks and labels to display when I attempt to plot. Here is my code I am using. Everything else seems to work fine. The labels on the bottom x axis should be -0.08, -0.04, 0, 0.04, and 0.08.

%% Plotting section
        figure;
        %plot total hydrometeor mixing ratio differences
        h1=plot((qr_diff(1,:)+qs_diff(1,:)+qg_diff(1,:)+qh_diff(1,:)).*1000,[1:50],'k-','LineWidth',4);

Unrecognized function or variable 'qr_diff'.

        hold on;
        %add a text label
        text(-0.06,42,'d) total q','FontSize',42,'FontWeight','bold');

        %axes properties
        xlim([-0.08 0.08]);
        xticks([-0.8:0.4:0.8]);
        xticklabels({'-0.8';'-0.4';'0';'0.4';'0.8'});
        xlabel('g kg^{-1}','FontSize',22,'FontWeight','bold');
        aa = get(gca,'XTickLabel'); set(gca,'XTickLabel',aa,'FontSize',22,'FontWeight','bold');
        ylim([0 50]);
        yticks([0:10:50]);
        yticklabels({'0';'10';'20';'30';'40';'50'});
        ylabel('Model Level','FontSize',22,'FontWeight','bold');
        bb = get(gca,'YTickLabel'); set(gca,'YTickLabel',bb,'FontSize',22,'FontWeight','bold');

        set(gca,'TickDir','out');
        set(gcf,'units','pixels','outerposition',[1 1 900 900],'windowstyle','normal')
        % set inner position (plot box); force it square
        set(gca,'units','normalized','position',[0.1300 0.1100 0.7750 0.8150],'plotboxaspectratio',[1 1 1])
        saveas(gcf,[times(t,:),'_stincre_totq_vprof_',exps{nex},'.png'])
        close

Answer 1

[Walter Roberson]

You used

 xticks([-0.8:0.4:0.8]);

Instead of

  xticks([-0.08:0.04:0.08]);