• <- ggplot(sdata, aes(x = time, y = 1-surv,group = strata, colour = strata)) +
  
•       geom_step(size = 1) +
  
•       scale_x_continuous(xlab, breaks = times, limits = c(0, max(times)), expand = c(0, 0)) +
  
•       scale_y_continuous(ylab, breaks=seq(0,1,by=0.2), limits=c(0,1),
  
•                          labels=c(as.character(seq(0,0.8,by=0.2)),"1.0"),expand = c(0, 0)) +
  
•       theme_classic() +
  
•       theme(axis.title.x = element_text(vjust = 0.5)) +
  
•       theme(panel.grid.minor = element_blank(http://lx.gongxuanwang.com/sszt/7.htm
• )) +
  
•       theme(legend.position = c(ifelse(m < 10, .28, .15), ifelse(d < 4, .75, .95))) +
  
•       theme(legend.key = element_rect(colour = NA)) +
  
•       ggtitle(tabletitle)+
  
•       geom_point(data = subset(sdata, n.censor != 0), aes(x = time, y = 1-surv), shape = 3)
  
•    
  
•   }else{
  
•     p <- ggplot(sdata, aes(x = time, y = surv,group = strata, colour = strata)) +
  
•       geom_step(size = 1) +http://lx.gongxuanwang.com/sszt/7.htm
• 
  
•       scale_x_continuous(xlab, breaks = times, limits = c(0, max(times)), expand = c(0, 0)) +
  
•       scale_y_continuous(ylab, breaks=seq(0,1,by=0.2), limits=c(0,1),
  
•                          labels=c(as.character(seq(0,0.8,by=0.2)),"1.0"),expa