outclass); end end if ~isscalar(y) y = reshape(y,ysiz); end end function [flag, omitnan] = parseInputs(flag, flag2, isFlag2Set) % Process flags, return boolean omitnan and string flag if isInvalidText(flag) error(message('MATLAB:mean:invalidFlags')); end ...
X(3,4) = NaN; indices = find(isnan(X) == 1); [I,J] = ind2sub(size(X),indices); 0 Comments Sign in to comment. bymon 12 Oct 2011 0 Link isnan() 1 Comment NSon 12 Oct 2011 This gives me just an array of 0 and 1. I need more precise info :( ...
% 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,...
|-F是将要画的符号函数,[xmin,xmax]是绘图的自变量范围,省略是默认值 为[-2π,2π],fig为指定的图形窗口,省略是默认为当前的图形窗口 3.4.2、ezplot3(x,y,z,[tmin,tmax],animate) |-x、y、z分比为符号表达式x(t)、y(t)、z(t) |-[tmin,tmax]是t的范围 |-animate是可选的动画绘制曲线过程,...
nan_locations = find(isnan(A)); A(nan_locations) = 0; A = filter2(ones(3,3), A); A(nan_locations) = NaN; Read blog on logical indexing We hope that these examples in the article give you a feel for ways you can express algorithms compactly and efficiently. Including these techni...
注意 对于矩阵,[I,J] = ind2sub(size(A),find(A>5)) 与 [I,J] = find(A>5) 返回相同的值。 [I1,I2,I3,...,In] = ind2sub(siz,IND) 返回 n 个下标数组 I1,I2,...,In,其中包含等效于 IND(大小为 siz 的数组)的多维数组下标。siz 是一个指定每个数组维度大小的 n 元素向量。
For some input vector u , you hope to find u ∗ after a finite number of iterations. However, the iteration will only converge under certain conditions on A ; and if A happens not to fulfill those, the code will misbehave in some way. It would be bad practice to assume that the ...
Takes any number of cell or double arrays and resizes them all to the same dimensions. Also serves to resize any array with removal of extra rows/columns and adding of NaN, 0, or empty string rows/columns. - NotMyMajor/MATLAB_samesize
1、MATLAB一些术语一matlab常用函数1、特殊变量与常数ans计算结果的变量名computer确定运行的计算机eps浮点相对精度Inf无穷大I虚数单位inputname输入参数名NaN非数nargin输入参数个数nargout输出参数的数目pi圆周率nargoutchk有效的输出参数数目realmax最大正浮点数realmin最小正浮点数varargin实际输入的参量varargout实际返回的参量...
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...