Create a 2-by-3-by-4 array of NaN values and display its size. Get X = NaN(2,3,4); size(X) ans = 1×3 2 3 4 Clone Size from Existing Array Copy Code Copy Command Create an array of NaN values that is the same
1 首先，点击菜单中的preferences菜单 2 点击workspace选项 3 勾选上use nans when calculating statistics选项 4 勾选上use nans when calculating statistics选之后，点击ok按钮
After you preallocate the array, you can initialize its categories by adding the category names to the array. For example, create a 2-by-4 array of NaNs. Get A = NaN(2,4) A = 2×4 NaN NaN NaN NaN NaN NaN NaN NaN Then convert the array of NaNs to a categorical array of ...
Ifdimis greater thanndims(X)or ifsize(X,dim)is 1, thenskewnessreturns an array ofNaNs the same size asX. Data Types:single|double Vector of dimensions, specified as a positive integer vector. Each element ofvecdimrepresents a dimension of the input arrayX. The outputyhas length 1 in the...
ISNAN(X) returns an array that contains 1's where the elements of X are NaN's and 0's where they are not. 返回一个与A相同维数的数组，若A的元素为NaN（非数值），在对应位置上返回逻辑1（真），否则返回逻辑0（假）。对虚数z，如果z的实部或虚部是NaN，那么isnan(z)函数返回逻...
如果向量比较复杂，且元素非常多就不适合用这种方法了，可以考虑用命令isnan()语句：help isnanISNAN True for Not-a-Number.ISNAN(X) returns an array that contains 1's where the elements of X are NaN's and 0's where they are not. 返回一个与A相同维数的数组，若A的元素为Na...
str= string(A)converts the input array to a string array. For instance, ifAis numeric vector[1 20 300],stris a string array of the same size,["1" "20" "300"]. example Convert Dates and Times str= string(D,datefmt), whereDis adatetimeordurationarray, applies the specified format,...
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f...
用特殊字符“NaN”表示既不是实数也不是复数的“非数字”的值，例如，当把Excel文件中的数据读取到Matlab中时，若只读取数值型数据，那么数据中的缺失值自动使用NaN来表达；2.Inf的创建和产生 创建无穷大的函数是inf，除此之外，一些运算也会生成Inf；程序示例：a=inf 1/0 %无穷大 1e309 %超过存储范围，...
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 ...