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The paper:Hui Zou, Trevor Hastie, and Robert Tibshirani,Sparse Principal Component Analysis,Journal of computational and Graphical Statistics, 15(2): ... 阅读全文
posted @ 2014-11-05 23:01
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1 function applyhatch(h,patterns,colorlist) 2 %APPLYHATCH Apply hatched patterns to a figure 3 % APPLYHATCH(H,PATTERNS) creates a new figure from... 阅读全文
posted @ 2014-10-17 21:22
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NaN can be produced by:1. 0/02. Inf - Inf3. Inf/Inf4. 0*Inf5. rem(x,y), where y=0 or x=Inf 阅读全文
posted @ 2014-10-11 21:40
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Hallmarks of dynamic programming#1Optimal substructure: an optimal solution to a problem (instance) contains optimal solutions to subproblems.e.g. if ... 阅读全文
posted @ 2014-09-28 22:10
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The basic problem we study in probability is:Given a data generating process, what are the properties of the outcomes?The basic problem of statistical... 阅读全文
posted @ 2014-09-16 11:55
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ceiling analysis to decide what to work on next in a machine learning pipeline 阅读全文
posted @ 2014-09-05 00:04
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undocumented sprintfc 阅读全文
posted @ 2014-08-18 15:15
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来自统计之都，感谢Ihavenothing（http://cos.name/cn/profile/81532）详情参考：http://cos.name/cn/topic/151358?replies=3#post-3025551 library(showtext)2 setEPS()3 postsc... 阅读全文
posted @ 2014-05-31 20:24
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imresize(img, 1/2) 当 img 为 uint8 时与 double 时得到不同结果。 阅读全文
posted @ 2014-05-12 15:34
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分割后的图象如果保存为 JPG 格式，物体边界会产生锯齿状的很暗的像素。 阅读全文
posted @ 2014-05-11 16:36
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