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Converting string to numeric [duplicate]

...8 Some comments: You mention that your vector contains the characters "Down" and "NoData". What do expect/want as.numeric to do with these values? In read.csv, try using the argument stringsAsFactors=FALSE Are you sure it's sep="/t and not sep="\t" Use the command head(pitchman) to check the fir...
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Extract every nth element of a vector

...n with R, but how great could PyRon be? a = 1:120; b = [::6]. Python can't do the former, R not the latter. – bers Jul 29 at 10:56 add a comment  |  ...
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Remove and Replace Printed items [duplicate]

... It works in windows 7 basic terminal. In python 2.7, I simply use print "whatever to be removed\r", Thanks! – PhilMacKay Oct 31 '16 at 15:42 ...
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Convert the values in a column into row names in an existing data frame

...es in a column of an existing data frame into row names. Is is possible to do this without exporting the data frame and then reimporting it with a row.names = call? ...
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How to remove a key from HashMap while iterating over it? [duplicate]

...ue())){ iter.remove(); } } With Java 1.8 and onwards you can do the above in just one line: testMap.entrySet().removeIf(entry -> "Sample".equalsIgnoreCase(entry.getValue())); share | ...
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How to hide a button programmatically?

... i like your idea its actually what i do in iphone toggling single button to do multiple things.But i am new to android , can you please point me to an example on how to do this.. – Rishi May 30 '11 at 9:07 ...
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Check whether a value is a number in JavaScript or jQuery [duplicate]

... number or not. Is there any method or easy way in jQuery or JavaScript to do this? 3 Answers ...
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How to format code in Xcode? [duplicate]

I wonder how can I format my code to align it neatly? Does it have a feature similar to Eclipse's ctrl shift f ? 4 Answers...
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How to use IntelliJ IDEA to find all unused code?

... and I want to find ALL INSTANCES of such probable-unused codes. How can I do that in IntelliJ IDEA? 2 Answers ...
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Check if a string has a certain piece of text [duplicate]

...ng I import into my application has a certain piece of text. I know how to do this with jQuery, but how do I do it with straight up JavaScript? ...