I was assigned to read the following three articles by Howard Wainer: Graphical Birth Announcements—VOL.10, NO.2, 1997 Reporting Test Results to Institutions and Nations–VOL.15, NO.2, 2002 Finding What Is Not There through the Unfortunate Binning of Results: The Mendel Effect—VOL.19, NO 1,2006 As required, I summarize the first two articles and make a presentation. The link is […]
According to the requirement, I choose two graphs from my previous blogs and reconstruct them by ggplot2. The first one, a coplot of variables “reputation” and “a.grad.rate” in conditioning on Tiers, comes from the week13 color. The original graph is below: The panel at the top is the given panel, which is tier; the panels […]
On April 4, 1964, the top five songs on the Billboard Hot 100 were all Beatles songs. The title of these songs are : No. 1, “Can’t Buy Me Love” No. 2, “Twist and Shout” No. 3, “She Loves You” No. 4, “I Want to Hold Your Hand” No. 5, “Please Please Me” As you […]
Part A: The data frame college.ratings in the LearnEDA package provides ratings of a group of national universities based on 2001 survey data. Based on the original data, I choose the variable “Reputation” and variable “a.grad.rate”, which represent “measure of academic reputation” and “percentage of freshmen who graduated within a six-year period”, respectively. The reason […]
The dataset UScereal in the MASS package gives eleven variables for a group of 65 breakfast cereals. Based on the requirement I choose three variables, which are calories, fat and potassium. Later, I construct a scatterplot matrix, a coplot and a spinning 3-dimensional scatterplot for these variables. The first graph is a scatterplot matrix with […]
As required, I choose one time series data set in the “datasets” package, which is sunspot.year. This data set is yearly sunspots data from 1700 to 1988. Then, I use all four methods to graph the data and explain which method is best for your dataset. From the allowing graphs, we can see an overall […]
Loess First, simulates some (x, y) data where the true signal follows one of the curves sin(x)+cos(x), sin(x)-cos(x), sin(x)*cos(x), .28-.88*x-0.03*x^2+.14*x^3. Then we get a list, where d$x is the x values and d$y contains the y values. > head(cbind(d$x,d$y)) [,1] [,2] [1,] -3.141593 -0.7723653 [2,] -3.110019 -1.0347078 [3,] -3.078445 -1.3321508 [4,] -3.046871 -1.9027887 [5,] -3.015297 -1.4537965 […]
Find a two-way table (this is a table with a response, like temperature, and row and column classifications, like city and month). The table should have at least 4 rows and at least 4 columns. According to this requirement, I collect data from Ohio Department of Education: http://ilrc.ode.state.oh.us/power_users.asp Data is regard to high school graduate number […]
As required in the instruction, I find the data set, remove all the missing data, and randomly pick 1oo sample from the above data set. Since my first name’s first letter is between A to J, I look at the haircut prices of the men and women in the class. (The relevant variables in the […]
Exploring the Pythagorean Formula collect for a number of teams, the following variables: W – the number of games won L – the number of games lost P – the number of points (or runs, goals, etc) scored by the team PA – the number of points allowed by the team Then the Pythagorean formula […]
Which Log? Collect some measurement that has changed exponentially over time. (You should have at least 10 measurements.) According to this requirement I collect data from world dataBank, World Development Indicators(WDI), the link is http://databank.worldbank.org/ddp/home.do In this blog, I construct two graph. first one is a display with log base 10 measurement against time and the […]
I collect the population of another country, Guatemala, for the same ten-year period that I used in the previous blog two scales. After data collection, I compare the log (base 2) population against year for the two countries, Honduras and Guatemala. Here, I use one panel and two connected curve to display these two countries’ […]
The website http://data.worldbank.org/indicator/SP.POP.TOTL?cid=GPD_1 gives the population of many countries for many years. I collect population data for Honduras from 2002 to 2011,and graph the log (base 2) of the population against year. Construct two scales for your graph where the left vertical scale shows the log (base 2) population and the right vertical scale shows the population. […]
The dataset UScereal in the R MASS library gives nutritional information for a selection of US cereals. Find two variables in this dataset that are associated and use the plot function in R to draw a scatterplot. In this case, I decided to use two variables, “Fat” and “Calories”, to draw a scatterplot. Later I redraw […]
This is the final graph that I get from R. From the graph we can see that the tuition fee keeps increasing from 1960 to 2000. It looks like that the year and tuition fee have a positive relationship. We can expect the tuition will continue growing in the future based on the current graph. During […]
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Motor Trend magazine collected the horsepower and mileage for 32 cars in the 1973-74 model year. To see if there is any relationship between horsepower and mileage, I construct a scatterplot of the these two variables, Horsepower and Mileage. From the Graph,we can see that Mileage decreases as the Horsepower increases. The Mileage and Horsepower […]