您好，
    我在做local linear regression（logincome 对age的回归）的时候，输入以下code:

plot(d1[,1], d1[,2], xlim=c(15,65), ylim=c(6.7,7.9), col="blue",xlab="age", ylab="log(income)",cex=.1)

h1=dpill(d1$age,d1$logincome)

请问这个出现的错误该如何解决呢？非常感谢！

错误提示：
  Error in locpoly(xcounts, ycounts, drv = 2L, bandwidth = gamseh, range.x = range.x,  :
  Binning grid too coarse for current (small) bandwidth: consider increasing 'gridsize'