segment

R plot dynamic wind direction as arrow over time

左心房为你撑大大i 提交于 2019-12-08 07:18:49
问题 I want to plot the wind over a very long time,thus a dynamic plot is a nice choice for others to choose the time range. And I want to display the wind direction as arrows ; wind speed could be line . But it will be messy if I add arrows to every line above, and it seems hard to add more date to x axis. What the final result I want to get is like this: Is it possible to plot the wind-arrow plot in R? Plus: here is the demo data for plot structure(list(date = c("2016-04-01", "2016-04-01", "2016

Why global variables are stored in heap?

。_饼干妹妹 提交于 2019-12-08 06:25:18
问题 Why in the following example the global variables are stored in the heap segment, instead of the data/bss segment? From the following output of the maps pseudo-file, the data/bss segment is the 3rd line. This is because it is read/write, and anonymous. The following 2 entries are the heap (as the label indicates). This is the output of the /proc//maps: 00400000-00405000 r-xp 00000000 08:02 17962770 myexec 00604000-00605000 r--p 00004000 08:02 17962770 myexec 00605000-00606000 rw-p 00005000 08

29.windbg-!heap(堆状态)

安稳与你 提交于 2019-12-07 23:15:42
以下以windbg启动calc为调试结果: !heap !heap 扩展显示堆使用信息,控制堆管理器中的断点,检测泄露的堆块,搜索堆块或者显示页堆(page heap)信息。 !heap -h列出当前进程的所有堆: 0:000> !heap -h Index Address Name Debugging options enabled 1: 000a0000 Segment at 000a0000 to 001a0000 (00003000 bytes committed) 2: 001a0000 Segment at 001a0000 to 001b0000 (00006000 bytes committed) 3: 001b0000 Segment at 001b0000 to 001c0000 (00003000 bytes committed) !heap -v可以观察堆的分配粒度和解除提交阈值: 0:000> !heap 000a0000 -v Index Address Name Debugging options enabled 1: 000a0000 Segment at 000a0000 to 001a0000 (00003000 bytes committed) Flags: 50000062 ForceFlags: 40000060 Granularity:

Oracle表空间、段·区·块

六眼飞鱼酱① 提交于 2019-12-07 16:45:17
在Oracle学习过程中,存储结构,表段区块可能是每个初学者都要涉及到的概念。表空间、段、分区和数据块分别表示了Oracle进行数据存储的不同层次和结构。了解清楚这几个结构,有助于我们奠定一个稳固的学习基础,而且对于理解Oracle工作原理也有重要作用。 本文采用从小到大,逐步拓展的方式介绍四个结构,并且与Schema、数据文件的区别进行对比。 数据块(Block) 数据块Block是Oracle存储数据信息的最小单位。注意,这里说的是Oracle环境下的最小单位。Oracle也就是通过数据块来屏蔽不同操作系统存储结构的差异。无论是Windows环境,还是Unix/Linux环境,他们的操作系统存储结构和方式、甚至字符排列的方式都是不同的。Oracle利用数据块将这些差异加以屏蔽,全部数据操作采用对Oracle块的操作,相当于是一个层次的抽象。 Oracle所有对数据的操作和空间分配,实际上都是针对数据块Block的操作。我们从数据表中搜索出一行,实际中Oracle就会从内存缓冲区(或者硬盘)中读取到该行所在的数据块,再返回这数据块上的指定数据行。Oracle无论是在缓冲区,还是在硬盘,进行数据操作的虽小单位也就是数据块。 数据块是有大小的,在一个数据库建立的时候,通过参数进行设置。注意,在Oracle数据库参数中,只有数据块大小的参数是建库之后不能进行修改的。数据块的大小

R plot dynamic wind direction as arrow over time

我怕爱的太早我们不能终老 提交于 2019-12-07 00:18:28
I want to plot the wind over a very long time,thus a dynamic plot is a nice choice for others to choose the time range. And I want to display the wind direction as arrows ; wind speed could be line . But it will be messy if I add arrows to every line above, and it seems hard to add more date to x axis. What the final result I want to get is like this: Is it possible to plot the wind-arrow plot in R? Plus: here is the demo data for plot structure(list(date = c("2016-04-01", "2016-04-01", "2016-04-01", "2016-04-01", "2016-04-01", "2016-04-01", "2016-04-01", "2016-04-01", "2016-04-01", "2016-04

add segments to scatter-plot

大兔子大兔子 提交于 2019-12-06 07:08:17
问题 (this follows ggplot2 loess Q for which I got a nice answer) -- leading to this plot: My R knowledge is quite limited (sorry!) I plot a scatter using data from a table data1. data1<-NaRV.omit(data[,c(2,3,7,10)]) #(2=start, 3=end, 7=value, 10=type) ylabs='E / A - ratio' p1<-ggplot(data1, aes(x=start, y=value)) + ylim(0,5) + geom_point(shape=points, col=pointcol1, na.rm=T) + geom_hline(aes(yintercept=1, col=linecol)) + geom_smooth(method="loess", span=spanv, fullrange=F, se=T, na.rm=T) + # xlab

Calculate point and circle segment collision

拟墨画扇 提交于 2019-12-06 06:16:43
If I have calculated an intersection point between a line segment and a circle, how can I tell whether or not this intersection point lies on a segment of the circle? I have the equations to tell whether or not a line segment intersects with the circle, and I also have the intersection point on that circle, but what I need to know is whether or not this collision point on the circle lies within the bounds of a specific arg segment of that circle. I have the end points of the arc segment, the circle's center & radius, and the point of collision. Transform the intersection point into polar

Troubleshooting ORA-1628 - max # extents (32765) reached for rollback segment <SEGMENT_NAME> (Doc ID 1580182.1)

孤街醉人 提交于 2019-12-06 04:45:29
Troubleshooting ORA-1628 - max # extents (32765) reached for rollback segment <SEGMENT_NAME> (Doc ID 1580182.1) APPLIES TO: Oracle Database Cloud Schema Service - Version N/A and later Oracle Database Exadata Cloud Machine - Version N/A and later Oracle Cloud Infrastructure - Database Service - Version N/A and later Oracle Database Cloud Exadata Service - Version N/A and later Oracle Database Backup Service - Version N/A and later Information in this document applies to any platform. PURPOSE Purpose of this document is to have a checklist for troubleshooting ORA-01628 errors i.e max # extents

EAST模型与seglink模型

爷,独闯天下 提交于 2019-12-06 04:43:34
EAST模型与seglink模型 一、 EAST (Efficient and Accuracy Scene Text)模型 相关资料:https://blog.csdn.net/attitude_yu/article/details/80724187(中文翻译) 论文原文:https://arxiv.org/abs/1704.03155 代码地址:https://github.com/argman/EAST 内容: 1.概述:该模型只有两个阶段: 第一个阶段是基于全卷积网络(FCN)模型,直接产生文本框预测; 第二个阶段是对生成的文本预测框(可以是旋转矩形或矩形)经过非极大值抑制(NMS,简单地说就是基于高度相关的条件下通过阈值合并相邻文本框)以产生最终结果。该模型放弃了不必要的中间步骤,进行端到端的训练和优化 2.网络结构 特征提取-特征合并-输出层 输入: 虽然这个网络中没有提输入,但是还是有必要简单了解一下,该模型的输入的图像为512x512; 此外,虽然原文用的PVANet网络,但实际运用中多采用vgg16; 特征提取: 首先,利用在ImageNet数据集上预训练的卷积网络参数初始化;然后,基于VGG16模型从特征提取阶段中提取四个级别的特征图(记为fi),其大小分别为输入图像的1/32 1/16 1/8和1/4。另外,提取了pooling-2到pooling

SRDC - ORA-1555 during Export: Checklist of Evidence to Supply (Doc ID 1682706.1)

可紊 提交于 2019-12-06 04:35:11
SRDC - ORA-1555 during Export: Checklist of Evidence to Supply (Doc ID 1682706.1) Action Plan 1. Execute srdc_db_undo_1555-1.sql as sysdba and collect the spool output. 以sysdba身份执行 --srdc_db_undo_1555-1.sql REM srdc_db_undo_1555-1.sql REM collect collect Undo parameters and Segments details. define SRDCNAME='DB_Undo_1555-1' set pagesize 200 verify off sqlprompt "" term off entmap off echo off set markup html on spool on COLUMN SRDCSPOOLNAME NOPRINT NEW_VALUE SRDCSPOOLNAME select 'SRDC_'||upper('&&SRDCNAME')||'_'||upper(instance_name)||'_'|| to_char(sysdate,'YYYYMMDD_HH24MISS') SRDCSPOOLNAME