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Lesson 6:. basic plots. Lesson 6 Outline: Plot 1-basic plot commands 1) Figure Line style Marker style Labels and Titles Axes Matlab help LineSpec (colors, marker styles, line styles) 2) Matlab program for basic plots L6_plots.m

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## Lesson 6:

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**Lesson 6:**basic plots**Lesson 6 Outline: Plot 1-basic plot commands**1) Figure Line style Marker style Labels and Titles Axes Matlab help LineSpec (colors, marker styles, line styles) 2) Matlab program for basic plotsL6_plots.m line plots: 1D with time Multiple data sets 1D across time scatter plots: 2D bar plots : Hx 3)Subplots 4) Managing plots visible off pause saveas 5)Play with zoom**x=rand(20,10);**figure plot(x(:,10)) plot(x(:,9)) hold on plot(x(:,10),’r’)**figure**plot(x(:,5),'--b','LineWidth',2) hold on plot(x(:,4),':ko','LineWidth',2) close all plot(x(:,3),'-md','LineWidth’ 2, 'MarkerEdgeColor’, 'k', 'MarkerFaceColor', 'g', 'MarkerSize', 10)**MatLab help**search LineSpec colors line styles marker styles 5 minutes to play**axis([xmin xmax ymin ymax])**axis([1 25 -1 1]) xlabel(‘time') ylabel(’column_5') title(’random x plot')**L6_plots.m**open the m file from your current directory run the program Uncomment the next plot command highlight lines 35-45 right click and “uncomment” save**Let’s look at the code**plot(x,'b') hold on plot(y,'r') hold on What are we plotting? Is it a line? What color? Are there markers? Run the program and see if you were correct.**Uncomment the next plot command**highlight lines 48-54 right click and “uncomment” save**Let’s look at the code**plot(x,y,'b*'); What are we plotting? Is it a line? What color? Are there markers? Run the program and see if you were correct.**Uncomment the next plot command**highlight lines 58-61 right click and “uncomment” save**Let’s look at the code**hist(z) What are we plotting? Is it a line? What color? Are there markers? In command window type help hist Run the program and see how it looks.**What is the default bin size?**Try changing the bin size hist(z,25) hist(z,50)**Uncomment the next plot command**highlight lines 65-72 right click and “uncomment” save**Let’s look at the code**subplot(3,2,1);plot(x,’r’); subplot(3,2,2);plot(y,’b’); subplot(3,2,3);plot(x2,’-rd’); subplot(3,2,4);plot(y2,’:mo’); subplot(3,2,5);plot(x3,’- -k’); subplot(3,2,6);plot(y3, ‘-.g’); What are we plotting? Is it a line? What color? Are there markers? Run the program and see if you were correct.**subplot(3,2,1);**subplot(3,2,2); subplot(3,2,3); subplot(3,2,4); subplot(3,2,5); subplot(3,2,6); 3 rows 2 columns 6 plots**Managing figures**How many figures were made when you ran the program? where are they? “pause” stops the program put a pause after each figure (copy and paste line 76) Save run the program**What if you do not want to see the figures?**How can you save them to a file? fig_x=figure; creating a figure “handle” set(fig_x,’visible’,’off’)’; copy and paste line 75 adjust figure “handle” for this line % pause be sure to comment out the pauses saveas(fig_x,[outpath,’xy_scatter.tif’]); copy and paste line 77 adjust figure “handle” and name of file**Using zoom on Matlab plots**Click on zoom at top of figure + Select area you want enlarged Save as

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