大约有 19,601 项符合查询结果（耗时：0.0291秒） [XML]
Show AlertDialog in any position of the screen
...and then had to get the displays width and height and then set the X and Y based on a percentage of those values, that way the layout scaled nicely. developer.android.com/guide/topics/ui/dialogs.html#CustomDialog
– Roloc
May 23 '11 at 16:46
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Reshape three column data frame to matrix (“long” to “wide” format) [duplicate]
...x"
## a b c
## x 1 2 3
## y 3 3 2
Using reshape:
You can also use the base R function reshape, as suggested here: Convert table into matrix by column names, though you have to do a little manipulation afterwards to remove an extra columns and get the names right (not shown).
reshape(tmp, idva...
Tool to convert Python code to be PEP8 compliant
...ed by autopep8.
As an example, I applied this technique to the pandas code base.
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How to remove last n characters from every element in the R vector
...of functions whose names are most consistent and descriptive than those in base R (in fact I always google for "how to get the number of characters in R" as I can't remember the name nchar()).
library(stringr)
str_sub(iris$Species, end=-4)
#or
str_sub(iris$Species, 1, str_length(iris$Species)-3)
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Is modern C++ becoming more prevalent? [closed]
... make C++ highly backwards compatible with C because of the huge installed base of C coders. Very similar to MS's successful strategy of always maintaining backwards compatibility with DOS. (See Raymond Chen's excellent blog for the often painful lengths they went to...)
– j_...
Why is Scala's immutable Set not covariant in its type?
EDIT : Re-written this question based on original answer
3 Answers
3
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How do I call setattr() on the current module?
...ted are not. The values I'm generating are always the same, and determined based on further "constants", to save on arithmetic and typing on my part.
– Matt Joiner
May 29 '10 at 5:20
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Print function log /stack trace for entire program using firebug
...t this would be useful. I am stepping in to take ownership of a large code base and something that can generate a running trace of all function calls would certainly help get a sense of the flow/shape of the code and detect dead code.
– Matthew Nichols
Mar 7 '1...
Convert HTML to PDF in .NET
... and had a bunch of hurdles.
I personally would avoid using wkhtmltopdf - based solutions on Hosted Enterprise applications for the following reasons.
First of all wkhtmltopdf is C++ implemented not C#, and you will
experience various problems embedding it within your C# code,
especially while sw...
Is it possible for a computer to “learn” a regular expression by user-provided examples?
...ok up the specification for product codes and write the regular expression based on the specification, rather than trying to infer the regex from a limited set of sample product codes (regardless of whether a person or a program is trying to infer the regex).
– Jan Goyvaerts
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