Matlab 非结构阵列参考场的尝试——训练svm模型
嗨,世界 因此,我试图通过svm训练模型运行一些数据,遇到以下错误:Matlab 非结构阵列参考场的尝试——训练svm模型,matlab,libsvm,undefined-function,Matlab,Libsvm,Undefined Function,嗨,世界 因此,我试图通过svm训练模型运行一些数据,遇到以下错误: Undefined function or variable 'bestc'. Error in train_svm_model_sh (line 28) cmd = ['-s 0 -t 0 -c', num2str(bestc), '-g', num2str(bestg)]; 我最初的剧本是: bestcv = 0; for log2c = -10:10, for log2g = -10:10, cmd
Undefined function or variable 'bestc'.
Error in train_svm_model_sh (line 28)
cmd = ['-s 0 -t 0 -c', num2str(bestc), '-g', num2str(bestg)];
我最初的剧本是:
bestcv = 0;
for log2c = -10:10,
for log2g = -10:10,
cmd = ['-s 0 -t 0 -v 20 -c', num2str(2^log2c), '-g', num2str(2^log2g) '-q'];
cv = svmtrain(labels, data, cmd);
if (cv > bestcv),
bestcv = cv; bestc = 2^log2c; bestg = 2^log2g;
fprintf('%g %g %g (best c = %g, g = %g, rate = %g)\n', log2c, log2g, cv, bestc, bestg, bestcv);
end
end
end
cmd = ['-s 0 -t 0 -c', num2str(bestc), '-g', num2str(bestg)];
运行中出现问题的线路是:
cmd = ['-s 0 -t 0 -c', num2str(bestc), '-g', num2str(bestg)];
这是因为我只在if循环中定义了变量
bestc
和bestg
?我如何解决这个问题 我猜cv
永远不会大于bestcv
。要帮助调试,您可以执行以下操作:
bestc = []; bestg = [];
然后检查它们是否isempty