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For each row in an R dataframe

...;- x[1] plateName <- x[2] wellID <- 1 print(paste(wellID, x[3], x[4], sep=",")) cat(paste(wellID, x[3], x[4], sep=","), file= output, append = T, fill = T) } > apply(d, 1, f, output = 'outputfile') share ...
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Why is there a difference in checking null against a value in VB.NET and C#?

...mparable expressions 5==null and 5!=null only the second first [updated 2014-03-02 - PG] returns false. However, in ANY environment that supports null, it is incumbent on the programmer to know the truth tables and null-propagation used by that language. Update Eric Lippert's blog articles (mentio...
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How do I split a string on a delimiter in Bash?

... 1284 You can set the internal field separator (IFS) variable, and then let it parse into an array. Wh...
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Batch file include external file for variables

... answered May 4 '10 at 8:47 JoeyJoey 304k7575 gold badges627627 silver badges640640 bronze badges ...
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Is it possible to define more than one function per file in MATLAB, and access them from outside tha

... gnovicegnovice 122k1414 gold badges245245 silver badges350350 bronze badges ...
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How to call a parent class function from derived class function?

... | edited Jan 11 '17 at 9:48 Jarek C 79244 silver badges1414 bronze badges answered Dec 10 '08 at 19:57 ...
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How to get a list of all files that changed between two Git commits?

... 240 For files changed between a given SHA and your current commit: git diff --name-only <starti...
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How to delete a row by reference in data.table?

...| edited Nov 23 '18 at 12:47 Henrik 52.1k1111 gold badges117117 silver badges134134 bronze badges answer...
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Paste in insert mode?

... 476 While in insert mode hit CTRL-R {register} Examples: CTRL-R * will insert in the conte...
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为什么你有10年经验,但成不了专家? - 杂谈 - 清泛网 - 专注C/C++及内核技术

...是工作的附属品。(当然不能所有的工作都这样做) 4、大量重复性训练 自检问题:你在多大程度上,对某一项能力进行了大量重复性训练? 练习和实战最大的不同,就在于对专项能力重复性训练的程度。 在实战中,我...