error in using svm

2012 3 5
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i am using 2011b,i get the following error
plz hemp
Error using svmtrain (line 391) The kernelcachelimit argument must be a positive scalar.
Error in smo (line 22) svmModel= svmtrain(Training,Group, 'Kernel_Function','linear','Method','SMO','kernelcachelimit','1000')

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Wayne King
Wayne King 2012-3-5

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You have entered the 'kernelcachelimit' as a string variable, please use a positive scalar.
svmModel= svmtrain(Training,Group, 'Kernel_Function','linear','Method','SMO','kernelcachelimit',1000);

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