I followed the instruction in chapter 6 and coded as below. I got all the values but none for the plot (a single plot for the values of an index of social deprivation and an index of social fragmentation). I got the individual plot already: one for social deprivation and one for fragmentation. However, should I get another plot (similar to 6.7 in chapter 6) for the combined covariates? Please kindly suggest or let me know if I misunderstood. Thank you so much.