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Mean of elements in a list of data.frames
Suppose I had a list of data.frames (of equal rows and columns) dat1 <- as.data.frame(matrix(rnorm(25), ncol=5))[详细]
2023-04-10 21:31 分类：问答C#: How to find tags with regex and collect a List<string>
I have a text string like this: <dt> <span> <tag:text name=\"fee\" /> </span> </dt>[详细]
2023-04-10 18:47 分类：问答Comparison of Strings [duplicate]
This question already has answers here: Closed 11 years ago. Possible Duplicate: How do I compare strings in Java?[详细]
2023-04-10 16:34 分类：问答What is idiomatic Clojure to "remove" a single instance from many in a list?
I have a list, which may contain elements that will compare as equal. I would like a similar 开发者_如何学JAVAlist, but with one element removed. So from (:a:b:c:b:d) I would like to be able to \"remo[详细]
2023-04-10 16:14 分类：问答How to build FourSquare like leaderboard (users above and below you)
I\'m looking for a way to implement Foursquare\'s style of le开发者_开发问答aderboard where instead of showing you the top 10 for example it shows the you 2 people above you and 2 people below you bet[详细]
2023-04-10 15:37 分类：问答CMFCPropertyGridProperty list of values?
Is there a standard way to hold a user editable list of values in a CMFCPropertyGridProperty?开发者_Python百科I\'m thinking a string with semi-colon delimiter (that seems to be the windows standard).I[详细]
2023-04-10 15:34 分类：问答Simply rearrange/rename array (php)
I just don\'t get it, it\'s actually so basic, but I just can\'t make it happen. I\'ve got the following array:[详细]
2023-04-10 11:46 分类：问答Filter in functional languages with original non-filtered elements?
I want to return an array that that maps some filtered elements - but I want to keep the non-filtered elements where they are.[详细]
2023-04-10 09:41 分类：问答Finding an item in a List<T>
I have the follow example: public class Commands { public int ID { get; set; } public List<string> Alias { get; set; }[详细]
2023-04-10 09:09 分类：问答Does OCaml have syntax like Haskell's ++?
I know OCaml has List.a开发者_开发技巧ppend, but does it have an operator like Haskell\'s ++?For lists:[详细]
2023-04-10 07:08 分类：问答
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