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Pandas conditional creation of a series/dataframe column
...', 'green', 'red')
print(df)
yields
Set Type color
0 Z A green
1 Z B green
2 X B red
3 Y C red
If you have more than two conditions then use np.select. For example, if you want color to be
yellow when (df['Set'] == 'Z') & (df['Type'] == 'A')
otherwise blu...
git log of a single revision
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edited Feb 14 '19 at 11:04
Fantastic Mr Fox
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How can I get the last day of the month in C#? [duplicate]
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edited Apr 26 '15 at 22:44
ΩmegaMan
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numpy matrix vector multiplication [duplicate]
When I multiply two numpy arrays of sizes (n x n)*(n x 1), I get a matrix of size (n x n). Following normal matrix multiplication rules, a (n x 1) vector is expected, but I simply cannot find any information about how this is done in Python's Numpy module.
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在vc中使用xtremetoolkit界面库-----安装及环境配置 - C/C++ - 清泛网 - 专...
...先当然是配置发开环境了：
我使用的是vc6.0+xtremetoolkitPro15.3.1
以下链接是xtremetoolkitPro15.3.1免费下载地址：（其中还包含了注册机，解压Crack文件下的Keygen.zip就可以得到），
http://pan.baidu.com/s/1pJvfy0F
我因为之前安装的是一个绿...
Discuz菜单栏下面广告怎么弄？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...下:
<div id="dzf" class="cl">
<style type="text/css">
#dzf{padding:15px 0;line-height:160%;text-align:left;}
#dzf p{width:321px;text-indent:70px;background:url(http://www.discuz.net/data/attachment/album/201005/14/0953351hcnq10n6w4zqnwh.png) no-repeat 10px 2px}
.dzfbl{border-left:1px solid #...
importing pyspark in python shell
... I have the same issue. (See http://geekple.com/blogs/feeds/Xgzu7/posts/351703064084736)
19 Answers
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Is there a way to iterate over a slice in reverse in Go?
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141
No there is no convenient operator for this to add to the range one in place. You'll have to d...
How do I get the YouTube video ID from a URL?
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Convert a byte array to integer in Java and vice versa
... the ByteBuffer. It can do all the work for you.
byte[] arr = { 0x00, 0x01 };
ByteBuffer wrapped = ByteBuffer.wrap(arr); // big-endian by default
short num = wrapped.getShort(); // 1
ByteBuffer dbuf = ByteBuffer.allocate(2);
dbuf.putShort(num);
byte[] bytes = dbuf.array(); // { 0, 1 }
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