Читать книгу Probability with R - Jane M. Horgan - Страница 61

1 In Appendix B, we show that the line of best fit is obtained whenandWrite a program in R to calculate and and use it to obtain the line that best fits the data in Exercise 5 above. Check your results using the lm(y˜x) function given in R.

2 When plotting in Fig. 3.10, we used font.main = 1 to ensure the main titles are in plain font.Alternative fonts available are2 = bold,3 = italic,4 = bold italic5 = symbol.Fonts may also be changed on the ‐ and ‐axis labels, with font.lab. Explore the effect of changing the fonts in Fig. 3.7.