可以使用类似 my_vector[1] 或 my_vector[c(1, 3, 5)] 的语法来访问向量中的单个元素或多个元素。 MATLAB中的 index vector 也类似,可以使用类似 my_vector(1) 或 my_vector([1, 3, 5]) 的语法来访问向量中的元素。 总的来说,index vector 的用法是非常灵活的,可以根据具体的需求来指定要访问的...
Grouping variable, specified as a categorical, numeric, logical,datetime, or duration vector, a string array, a cell array of character vectors, or a character array with each row representing a group label. grp2idxtreatsNaNs (numeric, duration, or logical),''(empty character arrays or cell...
MATLAB Online에서 열기 Hello, I have a large vector of index-data pairs that may contain multiple data values for any given index. The way this is represented in the data is that the index vector may contain repeated indices with the corresponding location in ...
vectorindex:在索引向量处评估 n 维数组。-matlab开发 VECTORINDEX 在以向量形式指定的索引处计算 n 维数组。 例如,如果 v=[1;3;1] 并且 A 是一个 3 维数组,则 vectorindex(A,v) 与 A(1,3,1) 相同。 代码使用线性索引,但它是为了速度而编写的; 避免所有 for 循环。 这特别适用于高维张量,但也适用...
You can specify a frequency range or a vector of frequencies. passiveplot(___,plotoptions) plots the passivity index with the plotting options specified in plotoptions. Settings you specify in plotoptions override the plotting preferences for the current MATLAB® session. This syntax is useful ...
vector of positive integers Indices of observations, specified as a vector of positive integers. Output Arguments collapse all data— Observations from datastore table Observations from the datastore, returned as a table withlength(ind)number of rows. ...
This MATLAB function creates an invertedImageIndex object, imageIndex, that contains a search index for imds.
creating a vector from a(:) : b(:) , but one for each index without using loops.-loop just make pull out as many computations as you can which it looks like you've done already.
Simulink代码生成: 调用Matlab函数 勾股定理的例子,演示Matlab Function模块的建模。 1)打开Simulink,拖出一个Matlab Function模块。双击模块进入,可以看到里面已经有一个名为fcn的函数定义。 2)将...Simulink中常规的模块和子系统实现,但是通过Matlab函数却可以很容易地实现。又或者说,通过Matlab可以调用一些工具包,但...
矩阵本身也可以看成一维向量(因为实际存贮的时候不论多少维的稠密张量都是按一维来存的), 所以可以直接用诸如 A(index)=0 B(index)=1 B(A~=1)=2 这样的操作 如果你一定想把index搞成矩阵的形式, 那么把find去掉, 直接用index=(A~=1)A...