...sten Wiesel 发现了一种被称为“方向选择性细胞（Orientation Selective Cell）”的神经元细胞。当瞳孔发现了眼前的物体的边缘，而且这个边缘指向某个方向时，这种神经元细胞就会活跃。 这个发现激发了人们对于神经系统的进...

I'm compiling my C++ app using GCC 4.3. Instead of manually selecting the optimization flags I'm using -march=native , which in theory should add all optimization flags applicable to the hardware I'm compiling on. But how can I check which flags is it actually using? ...

...sten Wiesel 发现了一种被称为“方向选择性细胞（Orientation Selective Cell）”的神经元细胞。当瞳孔发现了眼前的物体的边缘，而且这个边缘指向某个方向时，这种神经元细胞就会活跃。 这个发现激发了人们对于神经系统的进...

...iping can be beautiful library(Lahman) Teams = as.data.table(Teams) # *I'm selectively suppressing the printed output of tables here* Teams Pitching = as.data.table(Pitching) # subset for conciseness Pitching = Pitching[ , .(playerID, yearID, teamID, W, L, G, ERA)] Pitching Naked .SD To illustrat...

... old answer is very slow, not accurate and has several bugs. The solution selected as correct is almost never precise. You can read more about its bugs. This solution was tested on Internet Explorer 7 (and later), iOS 5 (and later) Safari, Android 2.0 (Eclair) and later, BlackBerry, Opera Mob...

...'s associative if you want: this code takes care of sorting items, but you select the actual sort function (usort or uasort). Finally, it does not use array_multisort: while array_multisort is convenient, it depends on creating a projection of all your input data before sorting. This consumes time a...

...rve which happens to have markers. So you are expected to have to manually select the points. This subject is interesting and goes deeper, will comment more in a future post, after releasing relevant code. – Ioannis Filippidis Nov 25 '13 at 7:41 ...

... @Honey Well, the regression test suite is mostly a selection of some or all of your unit and integration tests. It's a policy thing, how much regression testing you want to do. The main difference is that Unit tests are done in active development while regression tests is mor...

... draw textured rectangles and bars with ggplot2. # Image/pattern randomly selected from README path_image <- "http://www.hypergridbusiness.com/wp-content/uploads/2012/12/rocks2-256.jpg" library(ggplot2) # devtools::install_github("clauswilke/ggtextures") ggplot(mtcars, aes(cyl, mpg)) + ggtex...

...ply specific packing. The compiler will still apply default packing if you select a pack value bigger than the one the compiler would have chosen, so if you pick a large packing value, a class can still have different packing between compilers. The solution for this is to use #pragma pack(1), which ...