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马特·J


最后一个见面:1일전|2009 이후 활성

Professional Interests: medical image processing, optimization algorithms

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MatLab does not like my function. It says I need an 'end', but I have one.
您的if语句结束时关闭,但是在某些情况下,功能声明也需要一个。功能绘图箱...

약7시간|0

답변있음
如何独立识别每个多色。
If you download spatialgraph2D, //www.tatmou.com/matlabcentral/fileexchange/73630-spatialgraph2d?s_tid=ta_fx_results ...

약15시간|0

답변있음
如何从文档中找到一个函数的工具箱?
See the upper-left corner of the doc page. In this case, it is the Statistics and Machine Learning Toolbox.

약18시간|0

|수락됨

답변있음
How to find the optimal solution between boundary values?
The derivative of the curve is zero at x=sqrt(b/a). So, the condition is, 0

1일|0

|수락됨

답변있음
FMINCON解决方案不同的起始值
虽然该函数的输出(此处LCOE)确实很接近,但产生的输出IST的值有所不同。那意味着他们...

1일|0

|수락됨

답변있음
如何在单个绘图线中传达两条曲线MATLAB R2022A应用程序设计器。
案例“ bode -re&phase vs fq” yyaxis(app.uiaxes,'left');app.uiaxes.xscale ='log';app.uiaxes.ydir ...

1일|0

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Step function with variable number of steps
f =@(x)Interp1(网格,c,x,'pronos');

1일|0

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답변있음
避免进行多维矩阵繁殖的循环
d =重塑(d,1,1,t,2);e = vecnorm(d-y,2,4)。^2;

1일|0

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답변있음
How do I apply the if else condition on vectors correctly in this case?
您不会使用...其他情况下的条件元素。您使用逻辑索引:p_wt = zeros(length(ir),1,'gpuarray');P_W ...

1일|1

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답변있음
函数手柄中的求和
j_a = @(x)sum(abs(hpe-x(1)。*exp(-1i。*omega。*x(2))。Omega。^2)+2.*x(3)。*x(4)。*1I。

1일|0

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답변있음
我有81x2矩阵我想转换为9x9矩阵,该怎么办?
a = rand(81,2);b = rephape(a,[9,9,2]);谁是b

1일|0

답변있음
我应该使用哪种高斯拟合工具?
就个人而言,我是这个高斯拟合程序的粉丝:https://www.tatmou.com/matlabcentral/fileexchange/69116-gaussfitn

1일|0

답변있음
与数组的串联字符串
A= [23.5567, 5.34567, 23.1]; B= [-13.5357, 6.254, 2101.2]; C= [4,8,15]; formatSpec="%d-sample1-sample2-(%.2f, %.2f)"; str ...

1일|0

답변있음
我不能单击数字与他们互动并打开新图形
You could also try disableDefaultInteractivity.

1일|1

답변있음
我不能单击数字与他们互动并打开新图形
如果〜verlessthan('matlab','9.5')set(groot,'defaultfigurecreatefcn',@(fig,〜)addtoolbarexplorationbuttons(fig));...

1일|1

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답변있음
如何进行矢量投影?
In 2D Euclidean space, to project a point P=[x,y] onto a straight line, you need (1) a point on the line P0=[x0,y0] (2) a di...

1일|0

답변있음
使用优化工具箱的双参数优化
这是我的XDATA P1和YDATA P2?XDATA,YDATA是您所谓的实验和实验性。未知参数...

2일 전 | 0

답변있음
fmincon下限间隔
您无法在使用Fmincon上的变量上指定部分离散的约束,例如“ x(i)= 0或x(i)> 0.1”。处理这个...

2일 전 | 0

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답변있음
finding nonzero values in 4 matrixes which have the same indices
b =(ozone70> 0&ozone80> 0&ozone90> 0&ozone2000> 0);区域=区域(b);o70 = ozone70(b);加权尺寸=点(区域/总和(区域),o ...

3전|0

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如何拯救每一个结果从一个for循环矩阵
一种方法no_nodes = 5;a = 8;e = 1.9e6;L = 36;k = a*e/l;th = [0,pi/4,pi/2,3/4*pi];k =单元格(1,4);对于i = 1:4 ...

3전|0

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답변있음
图像检测并转换白色图像
A=imread('//www.tatmou.com/matlabcentral/answers/uploaded_files/1015940/image.png'); imshow(any(250-A,3))

3전|0

답변있음
由于自动缩放,Fmincon不会产生类似的结果?
有了这样的一般描述,只能说一般的话。但是,这里有一些说明:更重要的是,我尝试的是...

3전|0

답변있음
Optimizer (fminsearch) doesn't work as expected
It appears that you have 21 unknown variables. That is too many. fminsearch is only guaranteed to converge theoretically for one...

3전|0

답변있음
向量作为函数的输入
That should have worked. func([1,2]) function func(v) a=v(1), b=v(2), end

3전|0

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답변있음
如何找到与最高特征值相关的特征向量。
No, the output of eig() is not sorted, but the output of svd() is.

4일 전 | 1

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답변있음
创建并锁定与类中字段的结构
One way: classdef myclass properties x = struct('a',0,'b',1); end methods function obj...

4일 전 | 0

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How to optimize an objective function with strict inequality constraints?
The original problem with the unnecessary 240 term dropped is, Objective function =-70*x1-10*x2 subjected to : 3<=x(1)...

4일 전 | 0

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답변있음
calculating the mean for each column in a numerical array based on the elements in column 1
让我们调用您的矩阵A。然后,out = splitApply(@(z)均值(z,1),a,a(:,1));

5일 전 | 2

답변있음
求解方程式系统时的优化
fmincon with a nonlinear constraint would probably work, although because your constraint is non-differentiable, strictly speaki...

5일 전 | 0

답변있음
设置线性优化问题
X=rand(100,1); Y=rand(100,1); timeit(@()doOptimization(X,Y)) function doOptimization(X,Y) fun=@(M)objective(M,...

6일|0

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