首页 \ 问答 \ 保持矩阵中对角线的最大值(Keeping maximum values on diagonals in matrix)

保持矩阵中对角线的最大值(Keeping maximum values on diagonals in matrix)

假设我有一个表示高程值的矩阵A:

A = matrix(c(100,105,106,109,101,101,106,104,107,106,101,102,105,106,108,102,102,104,110,104),
           nrow=5, ncol=4)

我想创建一个新的矩阵,创建出A矩阵的对角线分析。 从前开始 左上角我想分析每个对角线并逐步保持最大值。 预期结果应如下:

B = matrix(c(100,105,106,109,101,101,106,105,107,109,101,102,106,106,108,102,102,102,110,106),
           nrow=5, ncol=4)

有人可以帮我吗?


Let's say I have a matrix A which represents elevation values:

A = matrix(c(100,105,106,109,101,101,106,104,107,106,101,102,105,106,108,102,102,104,110,104),
           nrow=5, ncol=4)

I would like to create a new matrix created out diagonal analysis of the A matrix. Starting in ex. the upper-left corner I want to analyse each diagonal and keeping the maximum values step by step. The expected results should be as following:

B = matrix(c(100,105,106,109,101,101,106,105,107,109,101,102,106,106,108,102,102,102,110,106),
           nrow=5, ncol=4)

Does anyone could help me with that?


原文:https://stackoverflow.com/questions/44259448
更新时间:2022-04-06 11:04

最满意答案

MarkerMangager显示的标记不是您创建的标记(并作为参数提供给mgr.addMarker() ),MarkerManager创建新实例,当您删除存储在markersArray的标记时,这些实例不会被删除(什么不是有任何视觉效果,因为markersArray中存储的标记不可见)

您可以在deleteOverlays()调用mgr.clearMarkers()来删除MarkerManager创建的实例,但不需要使用markersArray的完整方法。 你根本不需要这个数组,只需调用mgr.clearMarkers()来删除可见的标记。


The markers displayed by the MarkerMangager are not the markers you create (and supply as argument to mgr.addMarker() ), the MarkerManager creates new Instances and these Instances will not be deleted when you delete the Markers stored in markersArray(what doesn't have any visual effect, because the markers stored in markersArray are not visible)

You may call mgr.clearMarkers() in deleteOverlays() to delete also the Instances created by the MarkerManager, but the complete approach with the markersArray is unnecessary. You don't need this array at all, simply call mgr.clearMarkers() to remove the visible Markers.

相关问答

更多

相关文章

更多

最新问答

更多
  • 获取MVC 4使用的DisplayMode后缀(Get the DisplayMode Suffix being used by MVC 4)
  • 如何通过引用返回对象?(How is returning an object by reference possible?)
  • 矩阵如何存储在内存中?(How are matrices stored in memory?)
  • 每个请求的Java新会话?(Java New Session For Each Request?)
  • css:浮动div中重叠的标题h1(css: overlapping headlines h1 in floated divs)
  • 无论图像如何,Caffe预测同一类(Caffe predicts same class regardless of image)
  • xcode语法颜色编码解释?(xcode syntax color coding explained?)
  • 在Access 2010 Runtime中使用Office 2000校对工具(Use Office 2000 proofing tools in Access 2010 Runtime)
  • 从单独的Web主机将图像传输到服务器上(Getting images onto server from separate web host)
  • 从旧版本复制文件并保留它们(旧/新版本)(Copy a file from old revision and keep both of them (old / new revision))
  • 西安哪有PLC可控制编程的培训
  • 在Entity Framework中选择基类(Select base class in Entity Framework)
  • 在Android中出现错误“数据集和渲染器应该不为null,并且应该具有相同数量的系列”(Error “Dataset and renderer should be not null and should have the same number of series” in Android)
  • 电脑二级VF有什么用
  • Datamapper Ruby如何添加Hook方法(Datamapper Ruby How to add Hook Method)
  • 金华英语角.
  • 手机软件如何制作
  • 用于Android webview中图像保存的上下文菜单(Context Menu for Image Saving in an Android webview)
  • 注意:未定义的偏移量:PHP(Notice: Undefined offset: PHP)
  • 如何读R中的大数据集[复制](How to read large dataset in R [duplicate])
  • Unity 5 Heighmap与地形宽度/地形长度的分辨率关系?(Unity 5 Heighmap Resolution relationship to terrain width / terrain length?)
  • 如何通知PipedOutputStream线程写入最后一个字节的PipedInputStream线程?(How to notify PipedInputStream thread that PipedOutputStream thread has written last byte?)
  • python的访问器方法有哪些
  • DeviceNetworkInformation:哪个是哪个?(DeviceNetworkInformation: Which is which?)
  • 在Ruby中对组合进行排序(Sorting a combination in Ruby)
  • 网站开发的流程?
  • 使用Zend Framework 2中的JOIN sql检索数据(Retrieve data using JOIN sql in Zend Framework 2)
  • 条带格式类型格式模式编号无法正常工作(Stripes format type format pattern number not working properly)
  • 透明度错误IE11(Transparency bug IE11)
  • linux的基本操作命令。。。