平行坐標圖怎麼畫？

12-31

MATLAB,Excel,Python,R語言等都可以.
如圖

這裡有一個 MATLAB 簡單的例子，可以在此基礎上修改得到你想要的樣子：

load fisheriris labels = {"Sepal Length", "Sepal Width", "Petal Length", "Petal Width"};


data = meas;

nVar = size(meas, 2);

tickLen = .05;
figure color w

nTick = randi([3 10], 1, nVar);

[low, high] = bounds(data, 1);
cmap = num2cell(lines(numel(labels)), 2);

color = cmap(double(categorical(species)));

linePlot = line(1 : nVar, (data - low) ./ (high - low));

[linePlot.Color] = color{:};
line(repmat(1 : nVar, 2, 1), repmat([0; 1], 1, nVar), "color", "k", "lineWidth", 1)
x = repelem(1 : nVar, nTick);

y = cell2mat(arrayfun(@(k) 0 : 1 / (k - 1) : 1, nTick, "un", 0));
tickX = [x; x - tickLen; nan + x];

tickY = [y; y; nan + y];

line(tickX(:), tickY(:), "color", "k", "lineWidth", 1)
tickLabel = compose("%6.2f", y .* repelem(high - low, nTick) + repelem(low, nTick));

text(x(:) - tickLen, y(:), tickLabel(:), "HorizontalAlignment", "right")
text(1 : nVar, 1.02 + zeros(1, nVar), labels, ...

  "HorizontalAlignment", "center", "VerticalAlignment", "bottom")

axis tight off

使用最經典的數據集——fisher的iris數據集。三種顏色分別代表三種品種，四個縱坐標分別代表四個特徵變數。使用平行坐標圖就能將這三種品種大致區分開了。

MATLAB：

load fisheriris labels = {"Sepal Length","Sepal Width","Petal Length","Petal Width"}; parallelcoords(meas,"Group",species,"Labels",labels)

謝邀。

我不會。

不用寫代碼，GeoDa 可以直接生成

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