21-Jul-2020 09:23:26

graphics_test:
  MATLAB/Octave version 4.2.2
  Test graphics demonstrations.

ALBUM_BAR:
  MATLAB/Octave version 4.2.2:
  Read a data file of yearly music album sales.
  Display the data as a bar plot.

  Graphic saved in "album_bar.png"

ALBUM_BAR:
  Normal end of execution.

AUTOMOBILE_PREPARE
  MATLAB/Octave version 4.2.2:
  Read a CSV data file of automobile characteristics.
  Save a TXT file of prices and weights only.

  Data saved in file "automobile_data.txt"

AUTOMOBILE_PREPARE:
  Normal end of execution.

AUTOMOBILE_SCATTER
  MATLAB/Octave version 4.2.2:
  Read a data file of automobile prices and weights.
  Make a scatter plot of pairs of data.

  Graphic data saved in "automobile_scatter.png"

AUTOMOBILE_SCATTER:
  Normal end of execution.
21-Jul-2020 09:23:39

BROWNIAN_2D_PLOT:
  MATLAB/Octave version 4.2.2:
  Plot Brownian motion in two dimensions.

  Plot saved as "brownian_2d_plot.png".

BROWNIAN_2D_PLOT:
  Normal end of execution.

21-Jul-2020 09:23:44
21-Jul-2020 09:23:44

BROWNIAN_2D_SIMULATE:
  MATLAB/Octave version 4.2.2:
  Simulate Brownian motion in two dimensions.

BROWNIAN_2D_SIMULATE:
  Normal end of execution.

21-Jul-2020 09:23:44
21-Jul-2020 09:23:44

BROWNIAN_ANIMATION:
  MATLAB/Octave version 4.2.2:
  Simulate and plot Brownian motion in two dimensions.
  Animate the process by drawing one step at a time.

  Plot saved as "brownian_animation.png".

BROWNIAN_ANIMATION:
  Normal end of execution.

21-Jul-2020 09:24:11

BULGARIA_PLOT:
  MATLAB/Octave version 4.2.2:
  Plot Bulgarian population over time.

  Graphics saved in "bulgaria_plot.png"

BULGARIA_PLOT:
  Normal end of execution.

CAFFEINE_PREPARE:
  MATLAB/Octave version 4.2.2:
  Read a country/cataract rate/caffeine intake CSV file.
  Write a cataract rate/caffeine intake TXT file.

  Data saved to file "caffeine_data.txt"

CAFFEINE_PREPARE:
  Normal end of execution.

CAFFEINE_SCATTER:
  MATLAB/Octave version 4.2.2:
  Read a data file of cataract incidence versus caffeine intake.
  Display the data as a scatter plot.

  Read 43 data records from the file.

  Graphics data saved in "caffeine_scatter.png"

CAFFEINE_SCATTER:
  Normal end of execution.

CIRCLE_SCATTERS:
  MATLAB/Octave version 4.2.2:
  Make scatter plots of two sets of data representing
  points inside, and points outside the unit circle.

  Number of points inside the circle = 395
  Number outside                     = 105
  Total                              = 500
  Estimate for PI                    = 3.16

  Graphic data saved as "circle_scatters.png"

CIRCLE_SCATTERS:
  Normal end of execution.

CORKSCREW_PLOT3D:
  MATLAB/Octave version 4.2.2:
  Display a curve defined by points on a 3D curve.

  Graphics saved as "corkscrew_plot3d.png"

CORKSCREW_PLOT3D:
  Normal end of execution.

CORVETTE_SCATTER:
  MATLAB/Octave version 4.2.2:
  Read a data file of resale prices for Corvettes.
  Display the data as a scatter plot.

  Graphic data saved in "corvette_scatter.png"

CORVETTE_SCATTER:
  Normal end of execution.

DRUG_DOSAGE_PLOTS:
  MATLAB/Octave version 4.2.2:
  Plot the variation over time of the concentration
  of a medicinal drug in the bloodstream.

  Graphics file saved as "drug_dosage_plots.png"

DRUG_DOSAGE_PLOTS:
  Normal end of execution.

genealogy_tree:
  MATLAB/Octave version 4.2.2:
  Plot a tree illustrating a genealogy.

  Graphics saved as "genealogy_tree.png"

genealogy_tree:
  Normal end of execution.

GEYSER_BAR
  MATLAB/Octave version 4.2.2:
  Read binned data of waiting times between eruptions
  of the Old Faithful geyser.
  Create a corresponding bar plot.

  Graphic saved in "geyser_bar.png"

GEYSER_BAR:
  Normal end of execution.

geyser_bar_prepare
  MATLAB/Octave version 4.2.2:
  Read data about the waiting time between eruptions
  of the Old Faithful geyser.
  Bin this data, for presentation as a bar graph.

  Binned data saved as "geyser_bar_data.txt"

geyser_bar_prepare:
  Normal end of execution.

GEYSER_HISTOGRAM
  MATLAB/Octave version 4.2.2:
  Create a histogram of the time between eruptions
  of the Old Faithful geyser.

  272 x 2 data records read from file.

  Graphics saved as "geyser_histogram.png"

GEYSER_HISTOGRAM:
  Normal end of execution.

GEYSER_SCATTER
  MATLAB/Octave version 4.2.2:
  Create a scatter plot of eruption length versus
  subsequent wait time at the Old Faithful geyser.

  Graphics file saved as "geyser_scatter.png"

GEYSER_SCATTER:
  Normal end of execution.

grid_fill_contour:
  MATLAB/Octave version 4.2.2:
  Make a filled color contour plot Z(X,Y) for a 41x41 table.

  Graphics saved as "grid_fill_contour.png"

grid_fill_contour:
  Normal end of execution.

GRID_SURFACE:
  MATLAB/Octave version 4.2.2:
  Make a surface plot Z(X,Y) for a 41x41 table.

  Graphic data saved in "grid_surface.png"

GRID_SURFACE:
  Normal end of execution.

INSECT_SCATTER3D
  MATLAB/Octave version 4.2.2:
  Create a 3D scatter plot of measurements of three
  physical characteristcis of 3 species of insects.

  Graphics saved in "insect_scatter3d.png"

INSECT_SCATTER3D:
  Normal end of execution.

iris_decision_tree:
  MATLAB/Octave version 4.2.2:
  Plot a decision tree for the iris classification task.

  Graphics saved as "iris_decision_tree.png"

iris_decision_tree:
  Normal end of execution.

IRIS_SUBPLOTS:
  MATLAB/Octave version 4.2.2:
  For each of 3 varieties of iris, a number of specimens
  have been collected.  For each specimen, measurements
  made of sepal length, sepal width, petal length and
  petal width.

  Create a 4x4 array of scatter plots that compare each
  pair of values.  Moreoever, use colors to distinguish the
  data belonging to each of the three varieties.

  Graphics file saved as "iris_subplots.png"

IRIS_SUBPLOTS:
  Normal end of execution.

LEAST_SQUARES_PLOTS
  MATLAB/Octave version 4.2.2:
  Compare 15 data points with the least squares line
    y = A * x + B
  which minimizes the root-mean-square error.
  The data is actually perturbed values of a quadratic
  formula, which is shown for comparison:
    y = 1/2 x^2 + 1

  Graphics file saved as "least_squares_plots.png"

LEAST_SQUARES_PLOTS
  Normal end of execution.

LISSAJOUS_PLOT:
  MATLAB/Octave version 4.2.2:
  Make a plane curve by connecting a series of points.
  Also mark every 10th point.

  Graphics saved in "lissajous_plot.png"

LISSAJOUS_PLOT:
  Normal end of execution.

LYNX_PLOT:
  MATLAB/Octave version 4.2.2:
  Make a curve by connecting a series of data points.
  Mark the data points.

  Graphics saved in "lynx_plot.png"

LYNX_PLOT:
  Normal end of execution.

MARIO_FILL:
  MATLAB/Octave version 4.2.2:
  Draw a picture of Mario, using the fill() command
  to create a grid of colored squares.

MARIO_FILL:
  Normal end of execution.

mexican_hat_surface
  MATLAB/Octave version 4.2.2:
  Make a 3D surface plot of Mexican hat data.

  Graphics saved as "mexican_hat_surface.png"

mexican_hat_surface
  Normal end of execution.

NILE_HISTOGRAM:
  MATLAB/Octave version 4.2.2:
  Make a histogram of yearly Nile flood levels.

  570 x 2 data records read from file.

  Graphics saved as "nile_histogram.png"

NILE_HISTOGRAM:
  Normal end of execution.

NILE_PLOT:
  MATLAB/Octave version 4.2.2:
  Make a line plot of yearly Nile flood levels.

  Graphics saved in "nile_plot.png"

NILE_PLOT:
  Normal end of execution.

NINETY_HISTOGRAM:
  MATLAB/Octave version 4.2.2:
  Read a text file of 90 values, and create a histogram
  that will expose outliers as isolated values.

  90 x 1 data records read from file.

  Graphics saved as "ninety_histogram.png"

NINETY_HISTOGRAM:
  Normal end of execution.

orbital_fill_contour:
  MATLAB/Octave version 4.2.2:
  Make a filled contour plot of a table of data Z(X,Y).

  Graphics saved as "orbital_fill_contour.png"

orbital_fill_contour:
  Normal end of execution.

PREDATOR_PLOT3D:
  MATLAB/Octave version 4.2.2:
  Model the interaction between rabbits and foxes.

  Graphics saved as "predator_plot3d.png"

PREDATOR_PLOT3D:
  Normal end of execution.

PRESIDENT_HEIGHTS_BAR
  MATLAB/Octave version 4.2.2:
  Create a bar plot of the height in inches of US presidents.

  Graphic saved as "president_heights_bar.png"

PRESIDENT_HEIGHTS_BAR:
  Normal end of execution.

PRESIDENT_HEIGHTS_HISTOGRAM
  MATLAB/Octave version 4.2.2:
  Create a histogram of the height in inches of US presidents.

  45 x 1 data records read from file.

  Graphics saved as "president_heights_histogram.png"

PRESIDENT_HEIGHTS_HISTOGRAM:
  Normal end of execution.

PRESIDENT_HEIGHTS_PREPARE:
  MATLAB/Octave version 4.2.2:
  Read a president/height CSV file.
  Write a height TXT file.

  Data saved to file "president_heights_data.txt"

PRESIDENT_HEIGHTS_PREPARE:
  Normal end of execution.

PRICE_PLOTS:
  MATLAB/Octave version 4.2.2:
  Plot prices of bananas, gas and milk over time.
ans =

     1   241

ans =

   241    13


  Graphics file saved as "price_plots.png"

PRICE_PLOTS:
  Normal end of execution.

RANDOM_SCATTER:
  MATLAB/Octave version 4.2.2:
  Make a scatterplot of random (X,Y) data.

  Graphic data saved in "random_scatter.png"

RANDOM_SCATTER:
  Normal end of execution.

schoolyear_barh:
  MATLAB/Octave version 4.2.2:
  Get data of country names and school year lengths.
  Make a horizontal bar plot, with labeled bars.
  Graphics saved as "schoolyear_barh.png"

schoolyear_barh:
  Normal end of execution.

SNOWFALL_HISTOGRAM:
  MATLAB/Octave version 4.2.2:
  Make a histogram of yearly total snowfall data.

  128 x 10 data records read from file.

  Graphics saved as "snowfall_histogram.png"

SNOWFALL_HISTOGRAM:
  Normal end of execution.

SNOWFALL_PLOT:
  MATLAB/Octave version 4.2.2:
  Make a line plot of snowfall data.

  Graphics saved in "snowfall_plot.png"

SNOWFALL_PLOT:
  Normal end of execution.

SNOWFALL_SMOOTHED_PLOT:
  MATLAB/Octave version 4.2.2:
  Read snowfall data
  Use Octave's conv() function to make a 10 year
  moving average.
  Plot the smoothed data.

  Graphics saved in "snowfall_smoothed_plot.png"

SNOWFALL_SMOOTHED_PLOT:
  Normal end of execution.

TEMPERATURE_PREPARE:
  MATLAB/Octave version 4.2.2:
  Read a cityname/temperature/latitude/longitude MAT file.
  Write a temperature/latitude/longitude TXT file.

  Data saved to file "temperature_data.txt"

TEMPERATURE_PREPARE:
  Normal end of execution.

TEMPERATURE_SCATTER:
  MATLAB/Octave version 4.2.2:
  Make a scatter plot of temperature reading locations.

  Graphic data saved in "temperature_scatter.png"

TEMPERATURE_SCATTER:
  Normal end of execution.

TEMPERATURE_SCATTER3D
  MATLAB/Octave version 4.2.2:
  Create a 3D scatter plot of logintude,
  latitude, and January temperature.

  Graphic data saved as "temperature_scatter3d.png"

TEMPERATURE_SCATTER3D:
  Normal end of execution.

track_bar:
  MATLAB/Octave version 4.2.2:
  Read a text file containing durations
  representing results of an eye-tracking experiment.
  Make a bar plot of the results, with labeled bars.

  Graphic saved in "track_bar.png"

track_bar:
  Normal end of execution.

volcano_fill_contour:
  MATLAB/Octave version 4.2.2:
  Make a filled color contour plot of volcano height.

  Graphics saved as "volcano_fill_contour.png"

volcano_fill_contour:
  Normal end of execution.

volcano_line_contour:
  MATLAB/Octave version 4.2.2:
  Make a line contour plot of volcano height.

  Graphics saved as "volcano_line_contour.png"

volcano_line_contour:
  Normal end of execution.

volcano_surface:
  MATLAB/Octave version 4.2.2:
  Make a surface plot of volcano height.

  Z values stored as 87 by 61 array

  Graphics saved as "volcano_surface.png"

volcano_surface:
  Normal end of execution.

graphics_test:
  Normal end of execution.

21-Jul-2020 09:27:45