我正在用直方图绘制数据 . 这是下图中的结果：

如您所见，右侧y轴未显示，我不明白为什么 .

这个情节的代码：

x = load('performances.txt');

% Get Runtimes

for i = 1:6

time_seq(1:5,i) = x((i-1)*5+1:i*5,3);

time_gpu(1:5,i) = x((i-1)*5+1:i*5,4);

speedup(1:5,i) = time_seq(1:5,i)./time_gpu(1:5,i);

end

% X axis

sizeArray = [1024 10240 102400 1024000 10240000 102400000]

figure(1);

% Get Histogram

h = bar(log10(sizeArray),log10(speedup(1:5,:)')); % get histogram

% Log10 for x-axis and xtick

set(gca,'Xtick',log10(1024):1:log10(1.024*10^8))

set(gca,'Xticklabel',10.^get(gca,'Xtick'));

set(h(1),'facecolor','b');

set(h(2),'facecolor','r');

set(h(3),'facecolor','g');

set(h(4),'facecolor','k');

set(h(5),'facecolor','m');

hPatch = findobj(h,'Type','patch');

set(hPatch,'facealpha',0.4);

grid on;

% Size of WorkGroup

h = legend('N=16','N=32','N=64','N=128','N=256');

v = get(h,'title');

set(v,'string','WorkGroup size');

% Place legend

rect = [0.6,0.3,0.2,0.2];

set(h,'Position',rect,'color','none');

hPatch = findobj(h,'Type','patch');

set(hPatch,'facealpha',0.4);

xlabel('log(Array size)');

ylabel('log(Speedup)');

我试图添加“盒子”，但这是一样的 .

另一个问题是我想在前台显示条形图，即在网格上显示条形图 . 目前，如您所见，条形图是透明的网格线 . 我怎么能这样做？用“ Layer " or " alpha ”？