对数刻度(x轴)直方图 [英] Log scale (x axis) histogram

问题描述

我需要的是X轴以对数刻度显示的直方图.但是，我仍然希望直方图中的每个条都具有相同的宽度.

what I need is a histogram with X axis displayed on a log scale. However, I still want every bar in a histogram to be of the same width.

无论如何，我想出了(或上面)显示栏，这些栏的值较高而较窄(它们在普通刻度上具有相同的宽度，而不是对数刻度).

Whatever, I came up with (or upon) display bars with higher values as narrower ones (they are of the same width on ordinary scale and not on log scale).

这是我现在正在做的事情:

Here is what I am doing now:

edges = 10.^(c_min:0.1:c_max); 
h = histc(data, edges);
bar(edges, h); set(gca, 'Xscale', 'log');

推荐答案

由于您的钢筋应均匀分布，因此可以使用x值1,2，..绘制它们，然后更改轴标签.

Since your bars should be evenly spaced, you can plot them with x-values 1,2,.. and then change the axis labels.

edges = 10.^(c_min:0.1:c_max); 
h = histc(data, edges);

centers = sqrt(edges(1:end-1).*edges(2:end));

bar(h)

%# fix the x-labels, x-axis extents
xlim([0.5,length(centers)+0.5])
set(gca,'xticklabel',num2str(centers(:),'%5.2f'))

这篇关于对数刻度(x轴)直方图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！