How to plot line on graph
显示 更早的评论
Hello. I want to plot a curve line.
When I used this, I got the graph.
I want to plot a red curve line without a blue stick. Could I get an idea to fix this code?
for i = 2:30:750
X = csvread('kth_hog2_only.csv');
Y = csvread('kth_hog2_only_class.csv');
X = X(:,1:i);
Mdl = fitcknn(X,Y,'NumNeighbors',3,...
'NSMethod','exhaustive','Distance','cosine',...
'Standardize',1);
rng(1); % For reproducibility
CVKNNMdl = crossval(Mdl, 'KFold', 5);
classAccuracy(i) = 100 - kfoldLoss(CVKNNMdl, 'LossFun', 'ClassifError')*100;
end
plot(classAccuracy)
xlabel('Number of Clusters')
ylabel('CV Sum of Squared Distances')
采纳的回答
Star Strider
2020-4-10
Without your data, providing exact code is not possible.
In the interim, try this:
[pks,locs] = findpeaks(classAccuracy);
figure
plot(locs, pks, '-r')
or this:
L = islocalmax(classAccuracy);
x = 1:numel(classAccuracy);
figure
plot(x(L), classAccuracy(L), '-r')
Both should give the same result.
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Creating, Deleting, and Querying Graphics Objects 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
