The graph shows a comparison of total population of Bangladesh and Nepal during 1971-1980.  Over time the population of both countries increased rapidly.The total  Population of  Bangladesh grew exponentially over the decade. However, in Nepal it grew linearly over the same time period. R code rm(list=ls()) windows(height=10, width=10) #png(“BD_Nepal.png”) BD_Population<-read.table(“BD_population.csv”, sep=”,”, header=T) Nepal.P<-read.table(“Nepal_T_Population.csv”,sep=”,”,header=T) par(oma=c(0,0,0,2)) #par(mar=par()$mar+c(0,0,0,3)) […]

    In order to produce this graph, I have selected the population of Bangladesh from 1971 to 1980; only the population of that period shows the exponential growth.                    

  This scatterplot shows the relationship between calories and carbohydrate in different US cereals.  There is a positive relationship between calories and carbohydrate in foods. The more carbohydrate the cereals contain the more calories the cereals have. This graph is drawn by maintaining the principles of clear vision. It is easy to understand the underlying pattern […]

  I had  difficulty adding the text for reference line . I do not know how to add this kind of text showing what the reference line means. In addition, when I open the windows() device for controlling the size of the plot areas, windows() and mtext are not working well.  That’s why ,after blocking […]

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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 scatter plot of the two variables.     From this scatter plot,  it is clear that the horsepower and mileage are negatively related. The mileage decreases as […]