purrr is package that extends R's functional programming capabilities. It brings a lot of new stuff to the table and in this post I show you some of the most useful (at least to me) functions included in purrr. Getting rid of loops with map() library…

In this blog post I share some lesser-known (at least I believe they are) tricks that use mainly functions from dplyr. Removing unneeded columns Did you know that you can use - in front of a column name to remove it from a data frame? mtcars %>% sele…

前两次的总结:testng annotation生命周期 http://www.cnblogs.com/tobecrazy/p/4579414.html testng.xml的使用和基本配置http://www.cnblogs.com/tobecrazy/p/4582173.html 在前两次的总结中,了解了一些testng基础的用法,今天了解一下使用参数的trick和使用reportng生成漂亮的测试报告 Testng 传递参数的tricks 在 http://www.cnblogs.com/…

How to Train a GAN? Tips and tricks to make GANs work 转自:https://github.com/soumith/ganhacks While research in Generative Adversarial Networks (GANs) continues to improve the fundamental stability of these models, we use a bunch of tricks to train th…

matlab tips and tricks and ... page overview: I created this page as a vectorization helper but it grew to become my annotated Matlab reading cache. In order to motivate the DSP people out there, I am showing below how one can apply a window and scal…

LoadRunner AJAX TruClient协议Tips and Trickshttp://automationqa.com/forum.php?mod=viewthread&tid=2851&fromuid=2…

原文:C# Tips & Tricks: Weak References - When and How to Use Them Sometimes you have an object which is very large and needed multiple times, but not constantly, throughout your application. For example a huge lookup table, or the contents of a large f…

神经网络训练中的Tricks之高效BP(反向传播算法) 神经网络训练中的Tricks之高效BP(反向传播算法) zouxy09@qq.com http://blog.csdn.net/zouxy09 Tricks!这是一个让人听了充满神秘和好奇的词.对于我们这些所谓的尝试应用机器学习技术解决某些问题的人,更是如此.曾记得,我们绞尽脑汁,搓手顿足,大喊“为什么我跑的模型不work?”,“为什么我实现的效果那么差?”,“为什么我复现的结果没有他论文里面说的那么好?”.有人会和你说“你不懂调参!里面有…

https://www.hex-rays.com/products/decompiler/manual/tricks.shtml First of all, read the troubleshooting page. It explains how to deal with most decompilation problems. Below is a mix of other useful information that did not fit into any other page: V…

YJC tricks time Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5276 Description YJC收到了一份神秘礼物.是一个长成这样的钟. YJC不是时间领主所以他并不能乱搞时间,但是这个钟实在是太难认了!所以他想来耍耍你. 现在YJC给你时针和分针间的夹角,让你告诉他现在是什么时候. 你将以以下格式给出可能的时间:HH:MM:SS分别表示小时,分钟…