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Mar 15, 2010 · From the documentation for line: 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. It simply adds the line to the current axes without deleting other graphics objects or resetting axes properties.
Figure 1: A plot of the vectors 9 [0,1,2,3] and [0,1,4,9]. Matlab can only plot the points you give it! It draws a straight line between these points. This third argument is called an \option." We’ll play more with options in the next section. You should see the plot shown in Figure 1. The command you just entered tells Matlab to plot circles ...
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Create a line plot and use the LineSpec option to specify a dashed green line with square markers. Use Name,Value pairs to specify the line width, marker size, and marker colors. Set the marker edge color to blue and set the marker face color using an RGB color value.
- MATLAB Plots
- 4 Bar Plot: the SCHOOLYEAR Data
- Exercise 4:
- 6 Contours: the VOLCANO Data
- Exercise 6:
- 8 Trees: the GENEALOGY data
- 9 Graphs: the NETWORK data
How can we create plots that represent our data, help us to see patterns and problems, and convince our viewers of our results? Plotting allows us to visualize data. Before we do any analysis, this allows us to explore the data; after an analysis, we use various kinds of plots to analyze and publish our results. MATLAB has a rich set of plotting co...
Both line and scatter plots assume each data item has the form (x; y). Sometimes, however, instead of x data, we have some kind of label. Thus, we might have a list of car models and their prices. A bar plot allows us to represent the data as bars, identi ed by their data labels, with heights proportional to the data values. MATLAB has some trouble...
1. access the MATLAB M le schoolyear data.m: [ country , days ] = schoolyear data ( ) ; Make a horizontal bar plot of the school days: barh ( days ) ; Label each bar with this horrible command: > set ( gca , ' yticklabel ' , country ) ; save a PNG copy as schoolyear.png; Histogram: the SNOWFALL Data Suppose we want to display a large set of observa...
We may have a collection of measurements of temperature, or elevation, or pollution levels, sampled at regular points on a grid. One way to visualize such data is to use a contour plot. Contours can be indicated by a sequence of curves, each of which connects points with the same value of the measurement; a more vivid image can be done using colors...
access the data le volcano data.txt: Make a line contour plot: Make a color contour plot: save a PNG copy as volcano.png;
A tree plot is way to illustrate a process which involves branching or dependence. A tree plot can illustrate all the paths that start at the initial point and branch one way or another at decision points. The locations on a tree are called nodes, and the node representing the initial state is called the root node. If we assign each node an identif...
Mathematically, a graph is a set of nodes, some of which are connected by edges. The edges usually represent two-way connections; one-way connections arise in \directed graphs". The MATLAB function graph() can de ne a graph G using two lists of equal length, containing the starting node s and terminal node t of each edge. For your exercise, conside...
digraph plot, a set of labeled points p i, and a list of one-way connections (p i!p j). 1 Exercise: Line plot of the BULGARIA data The text data le bulgaria data.txt records a sequence (y i;p i), of years and population. A line plot connects the data points, suggesting a smooth functional behavior. 1
plot is appropriate, for example, when connecting data points with straight lines would give the misleading impression that the function being plotted is continuous between the sampled data points. Here are the MATLAB commands to create a symbol plot with the data gene rated by adding noise to a known function. % File: noisyData.m %
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The following image contains concepts addressed above within an actual MATLAB code to create graphs like the one represented in the above examples of commands. Another easy method to plot several lines on the same graph is easy within MATLAB. When writing code, use the hold-on command in between commands plotting each line.
