Prototype of array to create, specified as an array. Data Types:double|single Complex Number Support:Yes Output Arguments collapse all Array ofNaNvalues, returned as a scalar, vector, matrix, or multidimensional array. Tips X = NaNreturns the scalar, typedouble, IEEE®representation of "not ...
Operations return NaN when they have undefined numeric results, such as 0/0 or 0*Inf. X = NaN(n) returns an n-by-n matrix of NaN values. example X = NaN(sz1,...,szN) returns an sz1-by-...-by-szN array of NaN values, where sz1,...,szN indicate the size of each ...
打开 MATLAB Command window中输入 help NaN，可以看到 NaN（Not-a-Number） 的意思是“不是一个数字”。NaN is the IEEE arithmetic representation for Not-a-Number.A NaN is obtained as a result of mathematically undefined operations like 0.0/0.0 and inf-inf.一个简单的方法是，把该...
打开 MATLAB Command window中输入 help NaN，可以看到 NaN（Not-a-Number） 的意思是“不是一个数字”。NaN is the IEEE arithmetic representation for Not-a-Number.A NaN is obtained as a result of mathematically undefined operations like 0.0/0.0 and inf-inf.一个简单的方法是，把该...
我尝试应用@marsei的建议,即多次绘制条形组中的部分(其他组设置为Nan),如下所示: 代码语言:javascript 运行 AI代码解释 1 clear; 2 % Data 3 y = rand(10,4); 4 % 2D array of nan 5 y_nan = nan(size(y)) 6 % 1D array by default 7 y_1d(1:numel(y)) = nan(numel(y),1); 8 9 ...
1.24 Inf和NaN 1.介绍inf和nan的含义和用法 2.认识命令 无穷大inf 非值nan 判读无穷大isinf 判断非值isnan 3.说明 用特殊值“inf”表示无穷大,比如零除和溢出等这样的运算会产生无穷大,这导致结果太大而不能用传统的浮点值表示 用特殊值“NaN”表示既不是实数也不是复数的“非数字”的值 Matlab里,inf与in...
To illustrate the difference in behavior, first create an array of complex numbers. A = zeros(2,1); A(1) = 1; A(2) = 0 + 1i A = 1.0000 + 0.0000i 0.0000 + 1.0000i Then create a cell array and assign the elements ofAto it. When you index intoA(1), its value is returned ...
The default is 'includenan': % % 'includenan' - the mean of a vector containing NaN values is also NaN. % 'omitnan' - the mean of a vector containing NaN values is the mean % of all its non-NaN elements. If all elements are NaN, % the result is NaN. % % Example: % X =...
Preallocate Categorical Array You can preallocate a categorical array of any size by creating an array of NaNs and converting it to a categorical array. After you preallocate the array, you can initialize its categories by adding the category names to the array. For example, create a 2-by...
inf:无限大, 例如1/0 nan或NaN:非数值(Not a number) ,例如0/0 pi:圆周率 p(= 3.1415926...) realmax:系统所能表示的最大数值 realmin:系统所能表示的最小数值 nargin: 函数的输入引数个数 nargin: 函数的输出引数个数 1-2、重复命令 最简单的重复命令是for 圈(for-loop),其基本形式为: ...