IT Lab Session 10

Assignment 1: Create 3 vectors, x, y, z and choose any random values for them, ensuring they are of equal length,

T<- cbind(x,y,z)

Create 3 dimensional plot of the same (of all the 3 types as taught) 

Commands :

3D plots:

Normal Plot: plot3d(T[, 1:3])

Colour Plot: plot3d(T[, 1:3], col = rainbow(1000))

Color Plot of spheres: plot3d(T[, 1:3], col = rainbow(1000), type = 's')

Assignment 2:

Choose 2 random variables

Create 3 plots: 

1. X-Y 

2. X-Y|Z (introducing a variable z and cbind it to z and y with 5 diff categories)

3. Color code and draw the graph 

4. Smooth and best fit line for the curve

 

>qplot(x,y)

>qplot(x,z)

Semi-transparent plot

> qplot(x,z, alpha=I(2/10))

Colour plot

> qplot(x,y, color=z)

Logarithmic colour plot

> qplot(log(x),log(y), color=z)

Best Fit and Smooth curve using the function "geom"

> qplot(x,y,geom=c("path","smooth"))

> qplot(x,y,geom=c("point","smooth"))

> qplot(x,y,geom=c("boxplot","jitter"))