<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[junjunjiang的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/junjunjiang</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; junjunjiang]]></copyright><item><title><![CDATA[JAVA绘制图像并绘制不同字体符号]]></title><link>https://blog.youkuaiyun.com/junjunjiang/article/details/100669790</link><guid>https://blog.youkuaiyun.com/junjunjiang/article/details/100669790</guid><author>junjunjiang</author><pubDate>Mon, 09 Sep 2019 18:01:16 +0800</pubDate><description><![CDATA[用JAVA实现的一段代码，绘制图像，并添加不同字体的glyph。


        String imgPath = "./data/imgs/";
	String imgName = "tryDrawFontGlyph.png";

	@Test
	public void drawingGlyph() throws IOException {
		int width = 600;
		int ...]]></description><category></category></item><item><title><![CDATA[pdfbox 创建pdf文档]]></title><link>https://blog.youkuaiyun.com/junjunjiang/article/details/98063154</link><guid>https://blog.youkuaiyun.com/junjunjiang/article/details/98063154</guid><author>junjunjiang</author><pubDate>Thu, 01 Aug 2019 15:23:09 +0800</pubDate><description><![CDATA[pdfbox创建pdf文档，hello world！

记下代码：

public class CreatPdfFile {

 /**
  * @param args
  * @throws IOException
  */
 public static void main(String[] args) throws IOException {
  P...]]></description><category></category></item><item><title><![CDATA[Save / load scipy array,sparse csr_matrix]]></title><link>https://blog.youkuaiyun.com/junjunjiang/article/details/50720982</link><guid>https://blog.youkuaiyun.com/junjunjiang/article/details/50720982</guid><author>junjunjiang</author><pubDate>Tue, 23 Feb 2016 09:58:07 +0800</pubDate><description><![CDATA[A csr_matrix has 3 data attributes that matter: .data, .indices,
 and .indptr.
 All are simple ndarrays, so numpy.save will
 work on them. Save the three arrays with numpy.save or numpy.savez,
 lo]]></description><category></category></item><item><title><![CDATA[How to concatenate two matrices in Python?]]></title><link>https://blog.youkuaiyun.com/junjunjiang/article/details/50720948</link><guid>https://blog.youkuaiyun.com/junjunjiang/article/details/50720948</guid><author>junjunjiang</author><pubDate>Tue, 23 Feb 2016 09:54:02 +0800</pubDate><description><![CDATA[The scipy.sparse module
 includes the functions hstack and vstack.


For example:


In [44]: import scipy.sparse as sp

In [45]: c1 = sp.csr_matrix([[0,0,1,0],
    ...:                     [2,0]]></description><category></category></item><item><title><![CDATA[python  矩阵随机生成]]></title><link>https://blog.youkuaiyun.com/junjunjiang/article/details/50673061</link><guid>https://blog.youkuaiyun.com/junjunjiang/article/details/50673061</guid><author>junjunjiang</author><pubDate>Tue, 16 Feb 2016 10:14:52 +0800</pubDate><description><![CDATA[Generate a sparse matrix


Generate a sparse matrix of the given shape and density
 with uniformly distributed values.

scipy.sparse.rand(m, n, density=0.01, format='coo', dtype=None, random_sta]]></description><category></category></item><item><title><![CDATA[python Sparse matrices 单位矩阵]]></title><link>https://blog.youkuaiyun.com/junjunjiang/article/details/50672840</link><guid>https://blog.youkuaiyun.com/junjunjiang/article/details/50672840</guid><author>junjunjiang</author><pubDate>Tue, 16 Feb 2016 09:44:46 +0800</pubDate><description><![CDATA[identity(n[, dtype, format]) Identity matrix in sparse format Returns an identity matrix with shape (n,n) using a given sparse format and dtype.
创建n X n单位矩阵。
format：
bsr_matrix(arg1[, shape, dtype,]]></description><category></category></item><item><title><![CDATA[awk sed等神奇使用备忘]]></title><link>https://blog.youkuaiyun.com/junjunjiang/article/details/50619036</link><guid>https://blog.youkuaiyun.com/junjunjiang/article/details/50619036</guid><author>junjunjiang</author><pubDate>Mon, 01 Feb 2016 16:06:34 +0800</pubDate><description><![CDATA[备忘]]></description><category></category></item><item><title><![CDATA[centOS邮件提醒]]></title><link>https://blog.youkuaiyun.com/junjunjiang/article/details/50480525</link><guid>https://blog.youkuaiyun.com/junjunjiang/article/details/50480525</guid><author>junjunjiang</author><pubDate>Fri, 08 Jan 2016 09:37:26 +0800</pubDate><description><![CDATA[centos下默认在收到收件是会在执行命令后显示提示 “You have new mail in /var/spool/mail/root” ， 


可以通过在~/.bashrc文件中添加如下脚本，来禁止此消息的显示：
unset MAILCHECK

他的意思就是禁用邮件检查。

可以执行source ~/.bashrc来使修改马上生效]]></description><category></category></item></channel></rss>