index = find(array==2,2,'last')输出：[行，列] = 查找（x）要在 3 维数组中查找元素的索引，您可以使用语法[row,col] = find(x)这将为您提供元素所在的行和列。例子：MATLAB % MATLAB code for Finding an index % of an element in a 3-D array array = [1 2 3; 4 5 6; 7 8 9]% ...
[row,col,V] = find():返回包含非零元素的向量 V 现在让我们看看如何在示例的帮助下使用find()函数查找数组中任何元素的索引。 找到(x) find(X) 返回一个向量,其中包含 数组 X 中每个非零元素的线性索引。 示例1: MATLAB % MATLAB code for find an index of any % element in an array using the ...
How to find the position of a number in an array?. Learn more about find(), double, find indices, floating-point
[yPeaks,xPeaksIdx] = findpeaks(y); [yRPeaks,xRPeaks] = refinepeaks(y,xPeaksIdx,x) Extended Capabilities expand all Version History Introduced in R2007b expand all Select a Web Site Choose a web site to get translated content where available and see local events and offers. Based on your...
bandw=zeros(1,numel(R));forgIdx=1:numel(R)I1=find(rcs(gIdx,:),1,'first');I2=find(rcs(gIdx,:),1,'last');bandw(gIdx)=(I2-I1+1)*dopres;end 运用二次拟合并绘制结果。 pf=polyfit(R,bandw,2);figureplot(bandw/1e3,R/1e3)holdonplot(polyval(pf,R)/1e3,R/1e3);holdoffxlab...
To find array elements that meet a condition, use find in conjunction with a relational expression. For example, find(X<5) returns the linear indices to the elements in X that are less than 5. To directly find the elements in X that satisfy the condition X<5, use X(X<5). Avoid fun...
To find the number of characters in a string, use thestrlengthfunction. Data Types:double Dimension lengths, returned as a nonnegative integer scalar whendimis a positive integer scalar, a row vector of nonnegative integer scalars whendimis a vector of positive integers, or a 1-by-0 empty ...
Setfigpaperis developed in MATLAB 2020. In some versions not all options are available. The function checks the version so that the incompatible code is not executed. If you find any error or the modification does not apply to any item, please inform me and I will try to solve it. ...
% Find the redundancy in a vector x x = sort(x(:)); difference = diff([x;max(x)+1]); count = diff(find([1;difference])); y = x(find(difference)); plot(y,count) 这个图画出了x中每个相异元素出现的复本数。注意,在这里我们避开了NaN,因为find不返回NaN元素的索引值。但是,作为特例,...
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