八度（MATLAB），散点图图例和填充不起作用
我正在使用Octave，它是免费的伪MATLAB。
我的问题是：我想填补散点图的气泡，以及放置一个传奇。但是当我尝试使用'填充'时我会遇到错误，当我使用图例（...）时没有传说。
我的部分代码如下所示：
%ALL SAMPLES, PHI(Signal) @ THETA(Sample)=0
figure(5)
plot( Angles(:,1)([18:27]), ALL([18:27]), 10, [1 0 1]); %Magenta
hold on
scatter(Angles(:,1)([68:76]), ALL([68:76]), 10, [0 0 0]); %Black
scatter(Angles(:,1)([86:95]), ALL([86:95]), 10, [1 0 0]); %Red
scatter(Angles(:,1)([119:127]), ALL([119:127]), 10, [0 1 0]); %Green
scatter(Angles(:,1)([133:141]), ALL([133:141]), 10, [0 0 1]); %Blue
hold off
xlabel('Signal PMT angle (Sample angle at 0)');
ylabel('Normalized (signal/monitor) intensity');
legend('Control', 'Control', '1+2','Virgin','Cycle #1', 'Location','NorthEast');
title('Plot of All Samples, "-int Intensity"')
没有找到相关结果
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2 个回复
扦帽次杏
和有问题。根据这篇文章： http://octave.1599824.n4.nabble.com/Legend-in-scatter-plot-td3568032.html 诀窍是使用函数制作散点图。我编写了以下函数来绘制同一轴上的一堆散点图。 该函数接收一堆相同长度的单元阵列。单元阵列的每个元素对应于单独的系列。该函数返回一个长度相同的单元格数组，其中包含与每个绘图关联的句柄。该函数的参数解释如下：：与x值对应的双精度数组的单元阵列。：与y值对应的双精度数组的单元阵列。：表示标记大小的双精度单元格数组。：长度为3的双数组的单元格数组，表示标记的颜色值。：表示标记形状的字符串单元格数组。function [handles] = scatter_series_set(x_vals, y_vals, sizes, colors, styles) N = length(x_vals); if ( (~ ( N == length(y_vals))) || (~ ( N == length(sizes))) || ... (~ ( N == length(colors))) || (~ ( N == length(styles))) ) error('scatter_series_set: all arguments must be cell arrays of the same length'); end %plot the first series handles = cell([N, 1]); handles{1} = plot(x_vals{1}, y_vals{1}); set(handles{1}, 'linestyle', 'none'); set(handles{1}, 'marker', styles{1}); set(handles{1}, 'markersize', sizes{1}); set(handles{1}, 'color', colors{1}); %plot additional series if present if N > 1 hold on; for ind = 2:N handles{ind} = plot(x_vals{ind}, y_vals{ind}); set(handles{ind}, 'linestyle', 'none'); set(handles{ind}, 'marker', styles{ind}); set(handles{ind}, 'markersize', sizes{ind}); set(handles{ind}, 'color', colors{ind}); end hold off; end endx1 = 0:(2*pi/100):(2*pi); x2 = 2*x1; y1 = sin(x1); y2 = cos(x1); y3 = sin(x2); y4 = cos(x2); names = {'a', 'b', 'c', 'd'}; x_vals = {x1, x1, x1, x1}; y_vals = {y1, y2, y3, y4}; sizes = {10, 10, 10, 10}; colors = {[1, 0, 0], [0, 0, 1], [0, 0, 0], [0.7071, 0, 0.7071]}; styles = {'^', 's', 'x', '+'} scatter_series_set(x_vals, y_vals, sizes, colors, styles); legend(names, 'location', 'southeast');冲汉
n = 100; x = randn(n, 1); y = randn(n, 1); S = rand(n, 1)*20; hold on scatter(x(1:50), y(1:50), S(1:50), "red", "filled") scatter(x(51:100), y(51:100), S(51:100), "green", "filled") hold off print('-depsc', 'bubbleplot.eps');