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MATLAB如何生成如何产生两列具有相关系数为0.5的X Y 的数据。
% 定义均值和协方差矩阵 mu = [0; 0]; Sigma = [1, 0.5; 0.5, 1]; % 生成正态分布数据 N = 1000; % 定义样本数量 Z = mvnrnd(mu, Sigma, N); % 将正态分布数据转...
MATLAB如何生成如何产生两列具有相关系数为0.5的X Y 的数据。
% 定义均值和协方差矩阵 mu = [0; 0]; Sigma = [1, 0.5; 0.5, 1]; % 生成正态分布数据 N = 1000; % 定义样本数量 Z = mvnrnd(mu, Sigma, N); % 将正态分布数据转...
4 days 前 | 0
已提交
埃博拉酱 的 MATLAB 扩展 Extension
提供许多内置函数的bug修复(是的,我们有在替官方修bug)、功能升级版,以及一系列内置函数所欠缺,但却常用的增强功能(部分功能仅支持Windows系统)。例如,统一各坐标区的XYZC轴范围、斐波那契差值、全局键值对、统一Y轴范围、管线运算、串口抢夺、定点...
1 month 前 | 2 次下载 |
已提交
埃博拉酱 的 图像处理 工具箱 EbolaChan's Image Processing Toolbox
对MATLAB图像处理工具箱的扩展。为一些不支持向量化、GPU数组的内置函数,提供支持向量化、GPU的版本。拆分计算normxcorr2以提高性能。将两张图叠加成幻影坦克。
2 months 前 | 4 次下载 |
已提交
埃博拉酱 的 并行计算 Parallel Computing 工具箱
埃博拉酱的并行计算工具箱,提供一系列实用的并行计算辅助功能: 自动删除长时间卡死的并行池 为无法一次性全部读入内存的大文件,提供单线程读写、多线程计算的解决方案 替官方修复MATLAB在含有非ASCII字符的主机名的主机上不能启动并行池的bug 将指定的G...
2 months 前 | 8 次下载 |
已提交
Image5D - OIR, TIFF
快速随机读写5D图像格式,目前支持读入 Olympus OIR 和读写 OME-TIFF,比市面上流行的竞品BioFormats要快得多,80多㎇的OIR不到3s就能打开
3 months 前 | 2 次下载 |
已回答
clearing a persistent variable makes it no longer persistent
You can use deal to set multiple variables to the same value at once (such as an empty value, in your case). Using clear in a fu...
clearing a persistent variable makes it no longer persistent
You can use deal to set multiple variables to the same value at once (such as an empty value, in your case). Using clear in a fu...
4 months 前 | 0
| 已接受
已回答
Matlab got this wrong: Limit as n goes to infinity: (1+(i/n))^(n^2). Matlab says it's exp(2), which is wrong. Pls confirm.
I recommend consulting technical support. It's probably a bug.
Matlab got this wrong: Limit as n goes to infinity: (1+(i/n))^(n^2). Matlab says it's exp(2), which is wrong. Pls confirm.
I recommend consulting technical support. It's probably a bug.
4 months 前 | 0
| 已接受
已回答
how do i display text in command window matlab LiveScript?
T=toc; timer(TimerFcn=@(~,~)display(T),StartDelay=0.1).start;
how do i display text in command window matlab LiveScript?
T=toc; timer(TimerFcn=@(~,~)display(T),StartDelay=0.1).start;
4 months 前 | 0
已回答
Operator '+' is not supported for operands of type 'function_handle'.
Only symbolic functions can be added directly. You may need to refer to Symbolic Math Toolbox.
Operator '+' is not supported for operands of type 'function_handle'.
Only symbolic functions can be added directly. You may need to refer to Symbolic Math Toolbox.
1 year 前 | 0
提问
Is there a way to map the GPU number of the gpuDevice to the GPU number in Windows Task Manager?
Our GPU server is shared by multiple people. I hope to avoid using the GPU that is being used by others. The main method is to c...
1 year 前 | 1 个回答 | 1
1
个回答已回答
Cannot clear mex with an existing DesktopWindowTarget
Although I don't know the principle, I solved the problem. Simply move the resource release code into the destructor of MexFunct...
Cannot clear mex with an existing DesktopWindowTarget
Although I don't know the principle, I solved the problem. Simply move the resource release code into the destructor of MexFunct...
1 year 前 | 0
| 已接受
提问
Cannot clear mex with an existing DesktopWindowTarget
I'm trying to create a window and display a user-supplied image using the C++ MEX function: (Just a small snippet of code to ill...
1 year 前 | 1 个回答 | 0
1
个回答已回答
how can I reduce the computational time of a single for loop in a Matlab code
It seems that you are calling knnsearch twice in each loop to search for a single point in the point cloud. However, knnsearch c...
how can I reduce the computational time of a single for loop in a Matlab code
It seems that you are calling knnsearch twice in each loop to search for a single point in the point cloud. However, knnsearch c...
1 year 前 | 0
已回答
I have data for each milli second. How can I average the 1000 samples and convert in to 1 sec? I got 322 sec data. 1K samples for each second.
You may want to use imresize: Table=readmatrix('ms_to_sec.csv'); Table=imresize(Table,[322,2]); Table(:,1)=1:322;
I have data for each milli second. How can I average the 1000 samples and convert in to 1 sec? I got 322 sec data. 1K samples for each second.
You may want to use imresize: Table=readmatrix('ms_to_sec.csv'); Table=imresize(Table,[322,2]); Table(:,1)=1:322;
1 year 前 | 0
已回答
Convert negative values to positive values in the graph
It depends on the meaning of negative values and how they are generated. From your graph, your data appears to be oscillating w...
Convert negative values to positive values in the graph
It depends on the meaning of negative values and how they are generated. From your graph, your data appears to be oscillating w...
1 year 前 | 0
已回答
shannon entropy and entropy of grayscale
Entropy.m is open source, why don't you just check out its source code? edit entropy
shannon entropy and entropy of grayscale
Entropy.m is open source, why don't you just check out its source code? edit entropy
1 year 前 | 0
已回答
speed up for loop
When it comes to file I/O operations, parfor is usually not very helpful because the disk is always single-threaded. In contrast...
speed up for loop
When it comes to file I/O operations, parfor is usually not very helpful because the disk is always single-threaded. In contrast...
1 year 前 | 0
| 已接受
已回答
in this linear matrix. q_1, q_2....the input matrix are 1*11 double. all the F2y,F3x...in the out put are 1*11 double. I want to solve the Sol for each value of input ,output
Sol=cell(1,11); for a=1:11 Sol{a}=GetOneSol(q_1(a),q_2(a),q_3(a),q_4(a),q_5(a),q_6(a),q_7(a),q_8(a),q_9(a),q_10(a),q_11(a)...
in this linear matrix. q_1, q_2....the input matrix are 1*11 double. all the F2y,F3x...in the out put are 1*11 double. I want to solve the Sol for each value of input ,output
Sol=cell(1,11); for a=1:11 Sol{a}=GetOneSol(q_1(a),q_2(a),q_3(a),q_4(a),q_5(a),q_6(a),q_7(a),q_8(a),q_9(a),q_10(a),q_11(a)...
1 year 前 | 0
已回答
How to push data to a website?
It depends on how your website server is configured. No one can tell you how to push messages to the server without knowing the ...
How to push data to a website?
It depends on how your website server is configured. No one can tell you how to push messages to the server without knowing the ...
1 year 前 | 0
已回答
C++ API: How to convert ArrayElementRef to Array?
In MATLAB, an element of an array is also an array. However, in C++, an element is not an array. matlabArray[i] is taking an el...
C++ API: How to convert ArrayElementRef to Array?
In MATLAB, an element of an array is also an array. However, in C++, an element is not an array. matlabArray[i] is taking an el...
1 year 前 | 0
| 已接受
已回答
Please help to solve: Index in position 1 exceeds array bounds. Index must not exceed 1.
Your audio_signal is an 1×n row vector but you're trying to get its start_index:end_index rows.
Please help to solve: Index in position 1 exceeds array bounds. Index must not exceed 1.
Your audio_signal is an 1×n row vector but you're trying to get its start_index:end_index rows.
1 year 前 | 0