大约有 47,000 项符合查询结果(耗时:0.0858秒) [XML]

https://stackoverflow.com/ques... 

A simple explanation of Naive Bayes Classification

...les, would receive misleadingly high scores. In general, for an example, 70% of our data can be used as training set cases. Also remember to partition the original set into the training and test sets randomly. Now I come to your other question about Naive Bayes. To demonstrate the concept of Naï...
https://stackoverflow.com/ques... 

On localhost, how do I pick a free port number?

...do I figure out which port is available? I assume I cannot listen on port 80 or 21? 5 Answers ...
https://stackoverflow.com/ques... 

Why does this code using random strings print “hello world”?

...onstructed with a specific seed parameter (in this case -229985452 or -147909649), it follows the random number generation algorithm beginning with that seed value. Every Random constructed with the same seed will generate the same pattern of numbers every time. ...
https://stackoverflow.com/ques... 

How to send a simple string between two programs using pipes?

... "/tmp/myfifo"; /* create the FIFO (named pipe) */ mkfifo(myfifo, 0666); /* write "Hi" to the FIFO */ fd = open(myfifo, O_WRONLY); write(fd, "Hi", sizeof("Hi")); close(fd); /* remove the FIFO */ unlink(myfifo); return 0; } reader.c #include <fcntl.h> #i...
https://stackoverflow.com/ques... 

How to remove space between axis & area-plot in ggplot2?

... to expand the scale by 5% on each side for continuous variables, and by 0.6 units on each side for discrete variables. The problem is thus solved by adding expand = c(0,0) to scale_x_continuous and scale_y_continuous. This also removes the need for adding the panel.margin parameter. The code...
https://stackoverflow.com/ques... 

How to check if BigDecimal variable == 0 in java?

... 10 Answers 10 Active ...
https://stackoverflow.com/ques... 

JavaScript function to add X months to a date

...getMonth() + +months); if (date.getDate() != d) { date.setDate(0); } return date; } // Add 12 months to 29 Feb 2016 -> 28 Feb 2017 console.log(addMonths(new Date(2016,1,29),12).toString()); // Subtract 1 month from 1 Jan 2017 -> 1 Dec 2016 console.log(addMonths(n...
https://stackoverflow.com/ques... 

Programmatically set left drawable in a TextView

...DrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) set 0 where you don't want images Example for Drawable on the left: TextView textView = (TextView) findViewById(R.id.myTxtView); textView.setCompoundDrawablesWithIntrinsicBounds(R.drawable.icon, 0, 0, 0); Alternatively, you can ...
https://stackoverflow.com/ques... 

Find the extension of a filename in Ruby

... That's really basic stuff: irb(main):002:0> accepted_formats = [".txt", ".pdf"] => [".txt", ".pdf"] irb(main):003:0> File.extname("example.pdf") # get the extension => ".pdf" irb(main):004:0> accepted_formats.include? File.extname("example.pdf") =...
https://stackoverflow.com/ques... 

Regular expression for first and last name

... 202 Don't forget about names like: Mathias d'Arras Martin Luther King, Jr. Hector Sausage-Hausen ...