MATLAB actually supports n-dimensional matrices, so you can see how this can work for multiple dimensions. If your calculation is creating a matrix each time, you would then use a three-dimensional matrix, and so on. So each column might represent one time through your loop. It can create vectors, subscript arrays, and specify for iterations. This would also work if you were calculating a vector each time through the loop and wanted to store it as another column. Description The colon is one of the most useful operators in MATLAB ®. So this is a very simple example of a technique that is used all the time in MATLAB where you will just take the results and store them in a matrix for easy manipulation and use later. Vector operations are analogous to the operations on scalars as long as the dimensions make sense. This type of array is called a row vector. Now that it's done what we can do is come in here and say Plot (y), and we can see that on the graph here. To create an array with multiple elements in a single row, separate the elements with either a comma ',' or a space. And each time we keep adding another column to this. And what we'll see by scrolling up through the Command Window here is that at first, we have Y is equal to a 1 by 1, then a 1 by 2, 1 by 3. So every time through the loop now this statement is going to read Y element 1 or 2, or 3, or 4, is going to equal to the same thing it did before. So what we can do is come in here and say I want to make Y into a vector. That isn't going to do very well if we want to plot this data. Now what if we wanted to plot those? Well, every time through this loop we have overwritten the value of Y so we lost, like for instance, 9.528 when we generated 10.857. And we can see we've gone through this loop 10 times and gotten different values of Y. I'm going to run it by hitting F5, which means save and run the current file. Numberrandi ( 0 9,1,1) Vector (t)Number tt+1 end addVector Vector MatrixFinal ( end+1, :) addVector nSimnSim+1 end Alex Mcaulley el 15 de Jul. So I want to actually see the results of this. So we're going to just have a random number generated-somewhere between 0 and 1-and add it to the current value of I, and end. Now inside of this loop what we're going to do is say Y is equal to I plus rand. What we're going to do is say for I is equal 1 : 10, meaning that we're going to count from 1 to 10. into the graphical plot of the error function (Fig. In today's video on MATLAB basics, we're going to show how to store the results of a calculation inside of a vector, which is a special case of a matrix. During the execution run of the program, the vector c becomes a matrix.
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