大约有 48,000 项符合查询结果(耗时:0.0993秒) [XML]

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Printing everything except the first field with awk

...1 = ""; print $0, first; }' You can also find the number of columns in NF and use that in a loop. share | improve this answer | follow | ...
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Cluster analysis in R: determine the optimal number of clusters

..., calinski.best, "\n") # 5 clusters! Four. Determine the optimal model and number of clusters according to the Bayesian Information Criterion for expectation-maximization, initialized by hierarchical clustering for parameterized Gaussian mixture models # See http://www.jstatsoft.org/v18/i06/pap...
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Good scalaz introduction [closed]

...to the library. Seems that scalaz incorporates a lot of ideas from haskell and mathematics. Most articles that I found assume that you already feel comfortable with these concepts. ...
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How to pass arguments and redirect stdin from a file to program run in gdb?

... Pass the arguments to the run command from within gdb. $ gdb ./a.out (gdb) r < t Starting program: /dir/a.out < t share | improve this answer ...
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Why is '+' not understood by Python sets?

...'t have an implementation for the + operator. You can use | for set union and & for set intersection. Sets do implement - as set difference. You can also use ^ for symmetric set difference (i.e., it will return a new set with only the objects that appear in one set but do not appear in both se...
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Extract a regular expression match

... wraps all the existing regular expression operates in a consistent syntax and adds a few that are missing: library(stringr) str_locate("aaa12xxx", "[0-9]+") # start end # [1,] 4 5 str_extract("aaa12xxx", "[0-9]+") # [1] "12" ...
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Unstaged changes left after git reset --hard

... I had the same problem and it was related to the .gitattributes file. However the file type that caused the problem was not specified in the .gitattributes. I was able to solve the issue by simply running git rm .gitattributes git add -A git rese...
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Advantages of using prototype, vs defining methods straight in the constructor? [duplicate]

...ondering if there are any advantages of using any of these over the other, and which way should I go? 3 Answers ...
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Is there a way to 'uniq' by column?

...eed the ,1 in -k1,1? why not just -k1? – hello_there_andy Nov 24 '14 at 20:10 19 @hello_there_and...
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Javascript fuzzy search that makes sense

...arch JavaScript library to filter an array. I've tried using fuzzyset.js and fuse.js , but the results are terrible (there are demos you can try on the linked pages). ...