matlab

Small discrepancy in eigenvectors between NumPy and MATLAB [duplicate]

由 那年仲夏 提交于 2021-02-16 18:07:16
问题 This question already has answers here : Sign difference in eigenvectors taken form Matlab and Python (1 answer) Conflicting eigen vector outputs between Matlab and Numpy (1 answer) Matlab VS Python - eig(A,B) VS sc.linalg.eig(A,B) (1 answer) eigenvalue and eigenvectors in python vs matlab (1 answer) Closed 2 years ago . I have stiffness matrix and mass matrix. I want to calculate my structure vibration shapes and period (eigenvalue/vector) so I am using NumPy for this. Eigenvalues are the

糟心的caffe+ matlab编译路程

由 时间秒杀一切 提交于 2021-02-16 14:12:18
####配置：Ubuntu16.04+MatlabR2016b+cuda8.0+cudnn5.1+caffe 配置caffe真的不是很容易，特别是对初次接触Linux的同学，各种报错(ノ_；＼( ｀ロ´)，搞了好几天才解决 caffe安装可能出现的问题 ####可能会出现的问题 问题1."libcudart.so.8.0 cannot open shared object file: No such file or directory" 解决方法： 解决办法是将一些文件复制到/usr/local/lib文件夹下： 注意自己CUDA的版本号！ sudo cp /usr/local/cuda-8.0/lib64/libcudart.so.8.0 /usr/local/lib/libcudart.so.8.0 && sudo ldconfig sudo cp /usr/local/cuda-8.0/lib64/libcublas.so.8.0 /usr/local/lib/libcublas.so.8.0 && sudo ldconfig sudo cp /usr/local/cuda-8.0/lib64/libcurand.so.8.0 /usr/local/lib/libcurand.so.8.0 && sudo ldconfig 问题2."libcudnn.so.5 cannot

如何记笔记

由 无人久伴 提交于 2021-02-16 10:06:11
Step1. 在听讲过程中，在左侧内尽量多记有意义的论据、概念等讲课内容。 Step2. 下课以后，尽可能及早将这些论据、概念简明扼要地概括（简化）在右侧。 Step3. 把左侧遮住，只用右侧中的要点提示，尽量完满地叙述课堂上讲过的内容。 Step4. 将自己的听课收获、体会之类的内容，与讲课内容区分开，写在最下面，方便翻阅查找。 Step5. 每天花十分钟左右时间，快速复习笔记，主要是先看左侧，适当看右侧。 刚开始的时候，以单一内容为例进行训练。在这一内容不断熟练的基础上，再用于其他内容。 觉得文章不错，可以点击右上角的三个小点分享到朋友圈，让更多的人知道。 长按二维码即可关注这个微信号。 本文分享自微信公众号 - 帮你学MatLab（MatLab_helper）。 如有侵权，请联系 support@oschina.cn 删除。 本文参与“ OSC源创计划 ”，欢迎正在阅读的你也加入，一起分享。 来源： oschina 链接： https://my.oschina.net/u/3137795/blog/4597410

MATLAB textscan headerlines

由 a 夏天 提交于 2021-02-16 09:16:46
问题 When I try to use headerlines with textscan to skip the first line of the text file, all of my data cells are stored as empty. fid = fopen('RYGB.txt'); A = textscan(fid, '%s %s %s %f', 'HeaderLines', '1'); fclose(fid); This code gives 1x4 Cell [] [] [] [] Without the headerlines part and without a first line that needs to be skipped in the text file, the data is read in with no problem. It creates a 1x4 cell with data cells containing all of the information from the text file in columns. What

MATLAB textscan headerlines

由 99封情书 提交于 2021-02-16 09:16:06
问题 When I try to use headerlines with textscan to skip the first line of the text file, all of my data cells are stored as empty. fid = fopen('RYGB.txt'); A = textscan(fid, '%s %s %s %f', 'HeaderLines', '1'); fclose(fid); This code gives 1x4 Cell [] [] [] [] Without the headerlines part and without a first line that needs to be skipped in the text file, the data is read in with no problem. It creates a 1x4 cell with data cells containing all of the information from the text file in columns. What

MATLAB textscan headerlines

由 烈酒焚心 提交于 2021-02-16 09:15:11
问题 When I try to use headerlines with textscan to skip the first line of the text file, all of my data cells are stored as empty. fid = fopen('RYGB.txt'); A = textscan(fid, '%s %s %s %f', 'HeaderLines', '1'); fclose(fid); This code gives 1x4 Cell [] [] [] [] Without the headerlines part and without a first line that needs to be skipped in the text file, the data is read in with no problem. It creates a 1x4 cell with data cells containing all of the information from the text file in columns. What

MATLAB textscan headerlines

由 ぐ巨炮叔叔 提交于 2021-02-16 09:15:09
问题 When I try to use headerlines with textscan to skip the first line of the text file, all of my data cells are stored as empty. fid = fopen('RYGB.txt'); A = textscan(fid, '%s %s %s %f', 'HeaderLines', '1'); fclose(fid); This code gives 1x4 Cell [] [] [] [] Without the headerlines part and without a first line that needs to be skipped in the text file, the data is read in with no problem. It creates a 1x4 cell with data cells containing all of the information from the text file in columns. What

How to separate color errorbar matlab

由 五迷三道 提交于 2021-02-16 06:55:53
问题 Given the following example code: x = 0:pi/10:pi; y = sin(x); e = std(y)*ones(size(x)); figure errorbar(x,y,e) How are you able to color the line different compared to the horizontal lines? I tried errorbar(x,y,e,'--mo') But this changes all of them together... 回答1: Get a handle to the errorbar object. It has two children, corresponding to the data plot and error bars respectively. Then you can set the color of each separately. h = errorbar(x,y,e) %// a color spec here would affect both data

How to check if a file exists in Matlab? [closed]

由 半世苍凉 提交于 2021-02-16 06:16:12
问题 Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . Improve this question if exist('JaccardDistance', 'file')==1 load('JaccardDistance'); else % Do things end The file JaccardDistance is in the same folder where this code is being executed. The problem is that the "else" part is always being executed, which means that it is not

吴恩达《机器学习》课程笔记

由 ε祈祈猫儿з 提交于 2021-02-15 11:14:29
吴恩达《机器学习》课程笔记 吴恩达《机器学习》课程笔记——第五章：Matlab/Octave教程 摘要: 这一章的内容比较简单，主要是MATLAB的一些基础教程，如果之前没有学过matlab建议直接找一本相关书籍，边做边学，matlab的编程入门还是比较容易的。 在这里想讲一下matlab和Python的区别： 吴恩达教授在刚开始教机器学习课程的时候，主要用的是matlab/octave，他给出的理由是 阅读全文 posted @ 2019-02-24 23:13 李是李雅普诺夫的李 阅读(4) | 评论 (0) 编辑 吴恩达《机器学习》课程笔记——第四章：多变量线性回归 摘要: 4.1 多维特征 在之前的内容中，只探讨了单一特征的回归模型，也就是 m 个样本实例中，每个样本实例 x 只有一个特征，比如房价预测中的 m 个样本中，每个样本只有“房间尺寸”这一个特征。 在实际情况中，更多的是涉及到多维特征模型，比如影响房价的因素（即特征）除了房间尺寸外，还有房间数、楼层等等。这 阅读全文 posted @ 2019-02-24 19:25 李是李雅普诺夫的李 阅读(90) | 评论 (0) 编辑 吴恩达《机器学习》课程笔记——第三章：线性代数回顾 摘要: 吴恩达机器学习的课程中，关于线性代数方面的介绍比较少，而且比较简单，适合于系统学习过线性代数课程的人
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