Matlab plot function

Help Center Help Center. This table classifies and illustrates the common graphics functions. Choose a web site to get translated content where available and see local events and offers.

The plot function in Matlab is used to create a graphical representation of some data. It is often very easy to "see" a trend in data when plotted, and very difficult when just looking at the raw numbers. The plot function usually takes two arguments but can take one. The first is the X values of the points to plot, and the second is the Y value of the points to plot. In the case of a single argument, the X axis becomes 1,2,3,4, Notice that plot will "connect the dots" for you, drawing lines between each set of X,Y values. If you have a single array that you wish to plot, and don't really care about the X axis, you just want to see the values plotted in the Y axis, you can pass a single array to the plot function.

Matlab plot function

Help Center Help Center. To create two-dimensional line plots, use the plot function. By adding a third input argument to the plot function, you can plot the same variables using a red dashed line. Each specification can include characters for the line color, style, and marker. Notice that the titles and labels that you defined for the first plot are no longer in the current figure window. To add plots to an existing figure, use hold on. Until you use hold off or close the window, all plots appear in the current figure window. Both the surf function and its companion mesh display surfaces in three dimensions. You can display multiple plots in different parts of the same window using either tiledlayout or subplot. The tiledlayout function was introduced in Rb and provides more control over labels and spacing than subplot.

The values are not case sensitive. For a complete list of valid letter identifiers, see the Format property for datetime arrays. Use p to modify properties of the plot after creating it.

Anyone — from beginners hoping to create their first plot to advanced users looking for a refresher — can use these plotting techniques and functions. This video covers making and plotting data, and it shows different plot screen positioning options and plot appearance options. The video first walks through the process of creating sets of numbers that are ready to be inputted into a plot. It illustrates how you can quickly make sample data for a plot using commands like randn and linspace. Then, the video covers the plot function itself, and it shows how using the plot function instantly creates a plot figure window containing the data.

Help Center Help Center. This table classifies and illustrates the common graphics functions. Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select:. Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location. Toggle Main Navigation. Search MathWorks. Open Mobile Search.

Matlab plot function

Help Center Help Center. Specify the interval as a two-element vector of the form [xmin xmax]. Specify the interval as a two-element vector of the form [tmin tmax]. For example, '-r' plots a red line. Use this option after any of the input argument combinations in the previous syntaxes. For example, 'LineWidth',2 specifies a line width of 2 points. Specify the axes as the first input argument.

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Plot the curve for and. Define Y as the 4-by-4 matrix returned by the magic function. Line style, marker, and color, specified as a string scalar or character vector containing symbols. Increasing MeshDensity can make smoother, more accurate plots, while decreasing it can increase plotting speed. Control Resolution of Plot. Create a 2-D line plot of Y. If Y is a vector, the x -coordinates range from 1 to length Y. Then, use fplot to plot the sine function. Then, call nexttile each time you want a plot to appear in the next region. Before Ra, use commas to separate each name and value, and enclose Name in quotes. The command subplot m,n,p divides the figure into a m -by- n matrix of subplots and selects the subplot p.

Help Center Help Center. Create a simple line plot and label the axes.

If you do not specify a value for "DatetimeTickFormat" , then plot automatically optimizes and updates the tick labels based on the axis limits. For a complete list, see FunctionLine Properties. Toggle Main Navigation. You can include non-ASCII letter characters such as a hyphen, space, or colon to separate the fields. Change Line Properties and Display Markers. Change the line color to a shade of blue-green using an RGB color value. Use only cyan star markers for the third sine curve. By default, the object does not display markers. Other MathWorks country sites are not optimized for visits from your location. Change the line to a dotted red line by using dot notation to set properties. The Plot Function The plot function in Matlab is used to create a graphical representation of some data. Line style, specified as one of the options listed in this table.