Manipulating Data Elements in R

profilemsweetpea_17
Assignment7_question3-6.docx

Using R,

1. Create a linear model to represent the coefficients for the objects fw2 and fwe data. Use the Summary command to show the results of the simple regression analysis.

2. Obtain the confidence intervals for the linear models created in step 3 for the for the fw2 and fwe data.

3. Use the fitted() command to extract the model fitted values for the linear models created in step 3 for the for the fw2 and fwe data.

4. Using the resid() command, obtain the residuals for the linear models created in step 3 for the for the fw2 and fwe data.

fw2

abund

flow

Taw

11

3

Torridge

28

3

Ouse

20

10

Exe

4

11

Lyn

15

16

Brook

24

24

Ditch

24

27

Fal

50

34

fwe

speed

sfly

Taw

2

9

Torridge

3

25

Ouse

5

15

Exe

9

2

Lyn

14

14

Brook

24

25

Ditch

29

24

Fal

34

47

2