xlab = "", ylab = "", zlab = ""xlab = "", ylab = "", zlab = ""设置之后就报错了

如果在设置xlab、ylab和zlab参数为空字符串之后出现了错误，可能是因为这些参数的位置或者格式不正确。建议检查一下persp函数的参数设置是否正确，特别注意参数的位置和书写格式。

在persp函数中，xlab、ylab和zlab参数用于设置x、y、z轴的标签。如果想要去除这些标签，可以将它们设置为空字符串或者NULL。例如：

persp(x = seq(0, 1, length.out = nrow(z)), y = seq(0, 1, length.out = ncol(z)), z,
      xlim = range(x), ylim = range(y), zlim = range(z, na.rm = TRUE),
      xlab = "", ylab = "", zlab = "",
      main = NULL, sub = NULL,
      theta = 30, phi = 30, r = sqrt(3), d = 1,
      scale = TRUE, expand = 0.5,
      col = "white", border = NA, ltheta = -135, lphi = 0,
      shade = NA, box = TRUE, axes = TRUE, nticks = 5, ticktype = "simple")

如果在设置xlab、ylab和zlab参数为空字符串之后出现了错误，可以检查一下persp函数调用语句的其它参数是否正确设置，或者将这些参数设置为NULL，例如：

persp(x = seq(0, 1, length.out = nrow(z)), y = seq(0, 1, length.out = ncol(z)), z,
      xlim = range(x), ylim = range(y), zlim = range(z, na.rm = TRUE),
      xlab = NULL, ylab = NULL, zlab = NULL,
      main = NULL, sub = NULL,
      theta = 30, phi = 30, r = sqrt(3), d = 1,
      scale = TRUE, expand = 0.5,
      col = "white", border = NA, ltheta = -135, lphi = 0,
      shade = NA, box = TRUE, axes = TRUE, nticks = 5, ticktype = "simple")

注意，在这个例子中，xlab、ylab和zlab参数被设置为NULL，而不是空字符串。