Matlab Plot Line Along Vector

If the number of matrix columns equals the vector length, then the function plots each matrix row versus the vector. MATLAB Central. No plot is drawn on the screen; however, you can plot the function using plot(X,Y). 3D geologic surfaces are commonly characterized as point cloud data (e. Arrays can be created on the command line as follows: n = 1 n = 1 a = [1 2 3] a = 1 2 3. m- le functions in Matlab Any time we talk about a \function" in Matlab, we do not mean a plot or curve on some axis. INTRODUCTION TO FOR AND WHILE LOOPS IN MATLAB For loops and while loops allow the computer to run through a series of commands, repeatedly. We will not run the script file at this moment. This becomes obvious if you do not use enough sample points when plotting a smooth function. The original function is drawn with a solid line and the function plus noise is plotted with open circles. So, I have a quantity I am computing, say w, a vector. Display red markers at the minimum and maximum data values by setting the MarkerIndices property to a vector of the index values. Q&A for Work. Those numbers are called the "elements" of the vector. Create a vector of random data and find the index of the minimum and maximum values. Mainly for students in CMP 150: Computer Tools for Problem Solving at Franklin College in Franklin, IN USA. If a function is computed on this grid, say z = f(X;Y), then the command >plot3(X,Y,z) forms a linear plot much like that of the two dimensional plot command. A quiver plot displays velocity vectors as arrows with components (u,v) at the points (x,y). of the solution to a vector c1 (the linear coefficient vector). pdf from AMS 282 EN. I would appricate if someone helps me to plot this. The solution will contain a constant C3 (or C4,C5 etc. plotmatrix(X) is the same as plotmatrix(X,X) except that the subaxes along the diagonal are replaced with histogram plots of the data in the corresponding column of X. Creating 2-D (x,y) Plots plot(x) - plot vector x. The input for such a plot consists of two vectors (lists of numbers). Stream Line Plots of Vector Data. I am trying to make a best fit line out of a set of data for my physics class, but I don't know how to enter a table of 7 (x) and (y) values into matlab. Other properties can be set inside the plot command. m (refer to the documentation PDF contained in the S-Parameter Utilities download). Unlike the plot function, the line function does not call newplot before plotting and does not respect the value of the NextPlot property for the figure or axes. How to Plot a Straight Line in Matlab This also works in GNU-Octave, FreeMat, Scilab and Scicoslab 2. The reader would be served to have this web page open along with a Matlab window. You should find this useful not only for visualizing the solutions of ODEs, but also for plotting general data that might appear in other courses and work. We will solve the equation of the line for z, and use the MATLAB plotting function ezsurf to plot the result. MATLAB Basics EE107: COMMUNICATION SYSTEMS • Built-in graphics for visualizing data and tools for creating custom plots 2. SYNTAX: n=hist(y) - Bins the elements in vector y into 10 equally spaced containers and returns the number of elements in each container as a row vector. MATLAB has different plotting approaches for showing data in 3D: 3D line plots [MATLAB: plot3. Note that in MATLAB the first index of a vector or matrix starts at 1, not 0 as is common with other programming languages. MATLAB also helps us to plot Histogram and Pie chart. You can use three basic techniques for creating animations in MATLAB ®. Dot Products Ref: Hibbeler § 2. MATLAB actually plots the points (x(i), y(i)) joined by straight line segments. Plots and Matrix Algebra in MATLAB Objectives: 1. Stream Line Plots of Vector Data. • a - color of the line & symbol • b - style of the symbols (markers) • c - style of the line • See Table 5. The original function is drawn with a solid line and the function plus noise is plotted with open circles. Matlab Plotting. along with the MATLAB output. Categorical Scatter plot (Box Whisker plots with data points) A replacement for the traditional box and whisker plots provided in MATLAB (command boxplot). It plots points and optionally connects them by straight lines. a circular plot from a vector which represents the temperature along the radius surface, which is the same for every radius how program it in matlab, from an. Multidimensional arrays in MATLAB are an extension of the normal two-dimensional matrix. Labeling multiple plots along the plotted line Learn more about plotting. Something along the lines of this is ugly but should get you started (but you probably want to normalize the direction vector to get a nicer graph). A solid reference line connects the first and third quartiles of the data, and a dashed. To create a row vector, enclose a set of numbers in square brackets and use a space or. Color Symbol Line Style. Since MATLAB includes a number of different options for creating two-dimensional plots, I have decided to split the explanation over three posts. This method utilizes a MATLAB script employing equations of the three-point vector method to generate geologic attitude data from Cartesian coordinates of triangular planar surfaces and create a tangent diagram (, p. Generally to generate a multidimensional array, we first create a two-dimensional array and extend it. For example, if you omit the line style and specify the marker, then the plot shows only the markers and no line. To enter a row vector in Matlab, type the following in the command window: ˛ v = [0 1 2 3] and press enter. We answer questions so that everyone can learn from what we write. How to plot a line of a certian color. Right after color, include a vector with the RGB color values of whatever color you want. The code in this section will. Prerequisites The 2D Plotting Primer assumes knowledge of the MATLAB IDE, MATLAB help, arithmetic operations, built in functions, scripts, variables, arrays, logic expressions, conditional structures,. If the matrices (or vectors which are special cases of a matrices) are of the same dimensions then matrix addition, matrix subtraction and scalar multiplication works just like we are used to. I actually tried this approach, but when I save the plot produced in this way as vector file the line is not saved as a single line, but as collection of many segments. plot Linear plot. You can plot a straight line just as you would plot any other function in Matlab. When you create an array of plots in the same figure, each of these plots is called a subplot. Subscribe to view the full document. MATLAB actually plots the points (x(i), y(i)) joined by straight line segments. An array having more than two dimensions is called a multidimensional array in MATLAB. If you do not want tick marks along the x-axis, specify an empty vector []. At the end, you should feel comfortable plotting functions of the form f(x). When you create an array of plots in the same figure, each of these plots is called a subplot. Axis Properties. quiver3(z,u,v,w) plots vectors with directions determined by components (u,v,w) at equally spaced points along the surface z. Products; MATLAB Answers. Find the point in which the line through (1,1,1) and (1,3,0) meets the plane of Problem 1. If A is a vector, then mean(A) returns the mean of the elements. 3, y], {y, 0, 1}] Which gives an empty plot. How can I create a vector of markers for a scatter plot. The original function is drawn with a solid line and the function plus noise is plotted with open circles. Since MATLAB includes a number of different options for creating two-dimensional plots, I have decided to split the explanation over three posts. Motion on a Line. Consider L = 1 m, assume line lies along y-axis with the two ends at (0,−L / 2) and (0, L / 2) , and use the MATLAB command quiver to provide a vector plot of the electric field in the x-y plane for a range of −1 m < x < 1m and −1 m < y <1m 2. Invoking the script. Plot markers transparency and color gradient – Matlab plot-line markers can be customized to have transparency and color gradients. At the end, you should feel comfortable plotting functions of the form f(x). 5 Taking the dot product of an arbitrary vector with a unit vector oriented along a coordinate direction yields the projection of the arbitrary vector along the coordinate axis. MATLAB's ability to evaluate functions of vectors elementwise, for example sin(2*pi*x), is incredibly useful for plotting functions. Plotting MATLAB does an incredible job with plotting data. Customize Polar Axes Using Properties. The axes of a plot are a separate object in Matlab, and can be controlled by using set, get and other commands. I am trying to store the results in the form of an array every time the code goes through a loop. Neural Networks: MATLAB examples Define input vector Calculate neuron output Plot neuron output over the range of inputs plots the classification line, and. along with the MATLAB output. Plot a straight line in Matlab 1. Update the text to match the y-value as it moves along the line. This chapter deals with graphing capabilities and provides examples. Display red markers at the minimum and maximum data values by setting the MarkerIndices property to a vector of the index values. MATLAB assigns styles to lines according to their order of creation. I don't know what indis will be, that's why my only option is to use indis in the plotting syntax. I don't know what approach to try. semilogy(X1,Y1,) plots all Yn versus Xn pairs. This screencast is all about arrays -- what they are, how to access and modify individual elements and "slices" of an array, how to add rows and columns to a matrix, and the RESHAPE and transpose. indices = find(X) returns the linear indices corresponding to the nonzero entries of the array X. No can do with a single line, linestyle is a property of the entire line, not of the points or line segments along the line. Learn more about matlab function, function MATLAB. MATLAB cycles through the line styles only after using all colors defined by the ColorOrder property. Help in MATLAB Command line help 16. Then, create a scatter histogram chart that compares patients' Age values to their smoker status. If X is a scalar and Y is a vector, disconnected line objects are created and plotted as discrete points vertically at X. This would mean plotting along the line y = 0 where x varies from 0 to pi first, then plotting along the line x = pi where y varies from 0 to pi second, and finally plotting along the line y = x. MATLAB's ability to evaluate functions of vectors elementwise, for example sin(2*pi*x), is incredibly useful for plotting functions. Learning about MATLAB. This MATLAB function plots the array response pattern along the azimuth cut, where the elevation angle is 0. The particles trace the flow along a particular stream line. Vectors can be thought of as special matrices. These matrices are variable in length: they are nx2 with n starting on 31 and varying from 0 to 120. It’s name is derived from MATrix LABoratory. along with the MATLAB output. To learn how to program loops 3. (Typically, it is the window with the highest number. You should find this useful not only for visualizing the solutions of ODEs, but also for plotting general data that might appear in other courses and work. If a function is computed on this grid, say z = f(X;Y), then the command >plot3(X,Y,z) forms a linear plot much like that of the two dimensional plot command. Use a scatter plot with marginal histograms to visualize categorical and numeric medical data. MATLAB MATLAB is a software package for doing numerical computation. Write a single-line MATLAB statement to compute a column vector containing the velocities based on the values in the parameter matrix. To learn how to program loops 3. Create a vector of random data and find the index of the minimum and maximum values. quiver3(z,u,v,w) plots vectors with directions determined by components (u,v,w) at equally spaced points along the surface z. De first column of each matrix represents the x-coordinate and the second column represents the y. If A is a multidimensional array, then mean(A) operates along the first array dimension whose size does not equal 1, treating the elements as vectors. I would appricate if someone helps me to plot this. Line style and color, specified as a character vector or string scalar containing line style symbols, color options, or both. 3D geologic surfaces are commonly characterized as point cloud data (e. Find the point in which the line through (1,1,1) and (1,3,0) meets the plane of Problem 1. plot Linear plot. I am working on matlab code to plot normal distribution samples along a line. PLOT(Y) plots the columns of Y versus their index. The figure will contain a m groups of p box plot bars each. A typical line plot shows one dimension of data as a function of a one-dimensional domain. Hi,I want to plot a profile along line of 3D scatter plot where X is X cordinate and Y is Y cordinate and Z is the height. The column and row indices of Z are the x and y coordinates in the plane, respectively. Vectors can be thought of as special matrices. PLOT(X,Y) plots vector Y versus vector X. This is what my code looks like: So basically for the loop j =1:100, everytime the code goes through the j loop (for 100 times) and looks into the i loop and changes/does not change it, I would like to. Superimposing line plots on images 152 Posted by Steve Eddins , January 1, 2007 Several people have asked me recently how to plot some kind of shape on top of an image, so I thought I'd show the basic technique here. Then, create a line plot of the data. Intro to Matlab Lecture 5: Two-Dimensional Plots Tianyu Ding Department of Applied Mathematics and Statistics Johns. By default, the legend will be added to the top right corner. Learn more about plot, 2d, linspace, length, distance, marker, distance along line, distance along curve MATLAB Answers. Our objective is to plot a line along 2 points in MATLAB without using inbuilt functions for plotting. Perhaps the most common plots we create as engineers are x-y line plots that show the functional dependence of one variable (y) on another (x). This example shows how to use stream lines, slice planes, and contour lines in one graph. In this case, you can use the command quiver3 in Matlab to visualize the rays in 3D. MATLAB has different plotting approaches for showing data in 3D: 3D line plots [MATLAB: plot3. normplot plots each data point in x using plus sign ('+') markers and draws two reference lines that represent the theoretical distribution. Plot function along one direction. Stream Line Plots of Vector Data. To plot our least squares line, we need to generate a. This article is meant to inform new MATLAB users how to plot an anonymous function. At each time step in a loop, I calculate w for that time step. The reader would be served to have this web page open along with a Matlab window. Notes on the plotting code, above: 1. If Matlab can't find a solution it will return an empty symbol. The basic data structure in Matlab is the two-dimensional array. Transparent legend – Matlab chart legends are opaque be default but can be made semi- or fully transparent. De first column of each matrix represents the x-coordinate and the second column represents the y. Then, create a line plot of the data. to Matlab and you are expected to use Matlab to complete the assignment. A solid reference line connects the first and third quartiles of the data, and a dashed. My issue is that matlab plots -vector(1:length(vector))+1 instead of plotting it as I demanded. To do so, use the percent (%) sign. All parameters should be of the same dimensions and the function returns the handle of all line vectors. However, if not specified, MATLAB automatically cycles through a predefined (but user settable) list of colors to identify each line. The x,y,z is the 3D point coordinate while the u,v,w is the 3D direction vector. To start MATLAB in Windows: double click the desktop MATLAB icon To start MATLAB in Linux: enter matlab at the system prompt of a X-Forwarding window scc1% matlab & In either case, a MATLAB command window appears, along with a >> prompt. I'm very new to MATLAB and I was trying to display a real time plot of some calculations. semilogy(X1,Y1,) plots all Yn versus Xn pairs. Note that in MATLAB the first index of a vector or matrix starts at 1, not 0 as is common with other programming languages. Homework Equations 3. This method requires little experience in programming, so dive in with step one to get started. However, the type of values that you specify must match the type of values along the x-axis. ) To display the new plot in a new plot window or in an existing window other than that with highest number, use fig. Example 3: Let us now use the plotting capabilities of MATLAB to plot the plane and the line. plotting a single vector out of a Learn more about multidimensional array, plot MATLAB. The column and row indices of Z are the x and y coordinates in the plane, respectively. arrays of numbers. Superimposing line plots on images 152 Posted by Steve Eddins , January 1, 2007 Several people have asked me recently how to plot some kind of shape on top of an image, so I thought I'd show the basic technique here. If the number of matrix columns equals the vector length, then the function plots each matrix row versus the vector. The axes of a plot are a separate object in Matlab, and can be controlled by using set, get and other commands. Use MATLAB to find the trajectories for y0 = 0 and v0 = 28 m/s for initial angles ranging from 15 to 75° in in- Use MATLAB to create a plot of the sine (solid line) along crements of 15°. (Notice that the second command has a ”;” at the end of the line. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Arrays can be created on the command line as follows: n = 1 n = 1 a = [1 2 3] a = 1 2 3. 1 day ago · Hi,I want to plot a profile along line of 3D scatter plot where X is X cordinate and Y is Y cordinate and Z is the height. a circular plot from a vector which represents the temperature along the radius surface, which is the same for every radius how program it in matlab, from an. x is plotted along the horizontal axis, and y equals 2. MATLAB has different plotting approaches for showing data in 3D: 3D line plots [MATLAB: plot3. This MATLAB function retrieves the intensity values of pixels along a line or a multiline path in the grayscale, binary, or RGB image in the current axes and displays a plot of the intensity values. Then, create a scatter histogram chart that compares patients' Age values to their smoker status. Multidimensional arrays in MATLAB are an extension of the normal two-dimensional matrix. When you create a polar plot, MATLAB creates a PolarAxes object. Next, I would like to figure out the coordinates of 10 evenly spaced points along this line and plot them on top of the current image, creating a spine of 12 points (10 + the 2 original) along the ellipse. Axis Properties. My impression can be best described as WOW. 3, y], {y, 0, 1}] Which gives an empty plot. Products; MATLAB Answers. b b = 2 It's all as if we'd typed each line in the command window. This is because MATLAB indexes vector elements beginning with one, not zero. If the matrices (or vectors which are special cases of a matrices) are of the same dimensions then matrix addition, matrix subtraction and scalar multiplication works just like we are used to. The ability to work with these vector functions is one of the advantages of Matlab. Example 3: Let us now use the plotting capabilities of MATLAB to plot the plane and the line. This example shows how to use stream lines, slice planes, and contour lines in one graph. plots data in the x and y vectors by connecting each pair of points with a red dashed line. The particles trace the flow along a particular stream line. MATLAB Figure window For plotting variables in the MATLAB workspace and editing plot properties MATLAB Graphics documentation Data Statistics dialog box For calculating and plotting descriptive statistics “Example — Using MATLAB Data Statistics” on page 1-28 Basic Fitting dialog box data www. A black and white image can be represented as a 2 order matrix. You should find this useful not only for visualizing the solutions of ODEs, but also for plotting general data that might appear in other courses and work. You'll have to break up the above column vectors into multiple arrays spanning the time periods of the mode variable; time data are plotted in Matlab use date numbers of the new datetime object class. This example show you how to load a simple data set and plot it. Vectors can be thought of as special matrices. When you edit away your question, you leave us feeling as if you have taken advantage of us for some free private consulting. 62x MATLAB Tutorials Multiple Plots. The particles trace the flow along a particular stream line. How can I create a line vector matlab. ) A weather map shows 1-D of data ( temperature ) over a 2-D domain. You should find this useful not only for visualizing the solutions of ODEs, but also for plotting general data that might appear in other courses and work. MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages. Comments and Help. I would like to have Matlab find the following points for me: [y,x] for peak noted by the 100% line [x] for where the plot crosses the y=0 line [x] for where y is 50% and 20% of the peak found in part 1. h = plot(t, x, 'g:^', 'LineWidth', 3); Try to experiment with the set, get and plot commands to change a variety line properties. Basically, you give a vector in the "for". Arrays can be created on the command line as follows: n = 1 n = 1 a = [1 2 3] a = 1 2 3. For example, you can standardize the data in x or label the coordinate tick marks along the horizontal axis of the plot. The software I used got me the values in a text file and the way it is formatted, I can't figure out how to make the left side the X axis and right side the Y axis of a plot. If X is a scalar and Y is a vector, disconnected line objects are created and plotted as discrete points vertically at X. An array having more than two dimensions is called a multidimensional array in MATLAB. Introduction to Plotting and Vectorization This lab will provide an introduction to two dimensional plots. You can create plots of known, analytical functions, you can plot data from other sources such as experimental measurements, you can analyze data, perhaps by fitting it to a curve, and then plot a comparison. MATLAB (matrix laboratory) is a multi-paradigm numerical computing environment and proprietary programming language developed by MathWorks. In this case, you can use the command quiver3 in Matlab to visualize the rays in 3D. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. This property lists the line styles that MATLAB uses to display multiple plot lines in the axes. XLabel - Char array. Q&A for Work. The basic use of the built-in function plot is: plot(x, y) where x = array of x-values y = array of y-values 3. Matlab can plot vector fields using the quiver command, which basically draws a bunch of arrows. MATLAB also helps us to plot Histogram and Pie chart. I'm interested in calculating the components of the vector v along the line that passes by P1 and P2. It's very easy to use any RGB color code to create any color you want. View Notes - Lecture 5. Rate this: along with any associated source code and files, create plot chart in matlab. This function is an improvement over the CLINE function previously made available on TMW File Exchange. MATLAB also helps us to plot Histogram and Pie chart. MATLAB's ability to evaluate functions of vectors elementwise, for example sin(2*pi*x), is incredibly useful for plotting functions. Update the text to match the y-value as it moves along the line. Transparent legend - Matlab chart legends are opaque be default but can be made semi- or fully transparent. If the matrices (or vectors which are special cases of a matrices) are of the same dimensions then matrix addition, matrix subtraction and scalar multiplication works just like we are used to. Discover what MATLAB. You need to take the following steps to calculate the magnitude of a vector − Take the product of the vector with itself, using array multiplication (. I am working on matlab code to plot normal distribution samples along a line. MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages. The software I used got me the values in a text file and the way it is formatted, I can't figure out how to make the left side the X axis and right side the Y axis of a plot. YLabel - Cell array. I have the following plot and a file of the data which creates that plot. SIGLINE plots a line of statistical significance on the current axis sigline(xs) plots a significance line between the value in the 2D vector xs along the x-coordinate. The particles trace the flow along a particular stream line. >> plot(x,y); This will produce a plot of the sine wave from 0 to 2pi. A quiver plot displays velocity vectors as arrows with components (u,v) at the points (x,y). MATLAB MATLAB is a software package for doing numerical computation. The notation for a row vector, x =(1,2,3,4) is: >> x=[1,2,3,4] x= 1 2 3 4. This MATLAB function plots the array response pattern along the azimuth cut, where the elevation angle is 0. Learn more about matlab function, function MATLAB. View Notes - Lecture 5. For example: >>. d d = 3 12 27 48 or of the variable b. contour3(Z) creates a 3-D contour plot containing the isolines of matrix Z, where Z contains height values on the x-y plane. The particles trace the flow along a particular stream line. To do so, use the percent (%) sign. Comments and Help. Example: xticks([pi 2*pi 3*pi 4*pi]). arrays of numbers. Right after color, include a vector with the RGB color values of whatever color you want. In the script below, I call surfc in the form of surfc(X,Y,Z):. The x,y,z is the 3D point coordinate while the u,v,w is the 3D direction vector. Multidimensional arrays in MATLAB are an extension of the normal two-dimensional matrix. These matrices are variable in length: they are nx2 with n starting on 31 and varying from 0 to 120. You may choose to work alone, but if you choose to work in a group, make sure that everybody in the group gets approximately the same amount of time at the keyboard, and that all collaborator's names are on the posted document. By default, the legend will be added to the top right corner. Since that time, it has. SIGLINE plots a line of statistical significance on the current axis sigline(xs) plots a significance line between the value in the 2D vector xs along the x-coordinate. ) A weather map shows 1-D of data ( temperature ) over a 2-D domain. MATLAB's ability to evaluate functions of vectors elementwise, for example sin(2*pi*x), is incredibly useful for plotting functions. pdf from AMS 282 EN. Learn more about plot, 2d, linspace, length, distance, marker, distance along line, distance along curve MATLAB Answers. My impression can be best described as WOW. Examples of the plot function, line and marker types, custom colors, and log and semi-log axes. You can use plot3. The matrices x,y,z,u,v, and w must all be the same size and contain the corresponding position and vector components. [X,Y] = fplot(fun,limits,) returns the abscissas and ordinates for fun in X and Y. Move the marker and text to each subsequent point along the line by updating the Matrix property of the transform object. You'll have to break up the above column vectors into multiple arrays spanning the time periods of the mode variable; time data are plotted in Matlab use date numbers of the new datetime object class. The x,y,z is the 3D point coordinate while the u,v,w is the 3D direction vector. Recall from your first calculus course (differential calculus) the following idea. Prerequisites The 2D Plotting Primer assumes knowledge of the MATLAB IDE, MATLAB help, arithmetic operations, built in functions, scripts, variables, arrays, logic expressions, conditional structures,. c1(1) is the “m” of the straight line, c1(2) is the “b”. m at the Matlab command line or by using their names inside another Matlab file. quiver3(z,u,v,w) plots vectors with directions determined by components (u,v,w) at equally spaced points along the surface z. Notice that X increases along the columns from left to right in the x variable; Y increases along the rows from top to bottom in the y variable. (Typically, it is the window with the highest number. I don't know what approach to try. Distances along a plotted line?. quiver(x,y,u,v) plots vectors as arrows at the coordinates specified in each corresponding pair of elements in x and y. This MATLAB function plots a line in a geographic axes with vertices at the latitude-longitude locations specified (in degrees) by the vectors lat and lon. In general, find(X) regards X as X(:), which is the long column vector formed by concatenating the columns of X. This is not completely obvious though. When you edit away your question, you leave us feeling as if you have taken advantage of us for some free private consulting. Plot a sine wave and a red marker at the beginning of the line. contour3(Z) creates a 3-D contour plot containing the isolines of matrix Z, where Z contains height values on the x-y plane. MATLAB is a high-performance language for technical computing. Marker symbols such as 'o' are ignored. The column and row indices of Z are the x and y coordinates in the plane, respectively. Plot lines in 3-space] 3D mesh plots [MATLAB: mesh, meshc, meshz, waterfall. Other properties can be set inside the plot command. The profile line plot I am looking something like improfile function. m (refer to the documentation PDF contained in the S-Parameter Utilities download). Move the marker and text to each subsequent point along the line by updating the Matrix property of the transform object. How to make a plot in MATLAB ®. If Matlab is successfully executed, a small pop up window will appear with the Matlab logo. Use the x and y values of the next point in the line and the first point in the line to determine the transform matrix. A stream particle animation is useful for visualizing the flow direction and speed of a vector field. Generally to generate a multidimensional array, we first create a two-dimensional array and extend it. There is the 2, and there is a line drawn to the second point. Learn more about matlab function, function MATLAB. Arrays can be created on the command line as follows: n = 1 n = 1 a = [1 2 3] a = 1 2 3. Create a vector of random data and find the index of the minimum and maximum values. MATLAB has different plotting approaches for showing data in 3D: 3D line plots [MATLAB: plot3. The particles trace the flow along a particular stream line.