为什么interp函数给我错误？(Why does interp function give me error?)

为什么interp函数给我错误？(Why does interp function give me error?) n <- akima :: interp( x, y, z, xo = seq(min(x), max(x), length = 100), yo = seq(min(y), max(y), length = 100), linear = TRUE, extrap = FALSE, duplicate = "error", dupfun = NULL, ncp = NULL)

但它给：

Error in interp.old(x, y, z, xo = xo, yo = yo, ncp = 0, extrap = extrap, : missing values and Infs not allowed

让我们检查： is.na(x), is.na(y), is.na(z)都是FALSE

str(x) num [1:1398] 1.62 1.62 1.62 1.62 1.63 1.63 1.63 1.63 1.63 1.63 ... str(y) num [1:1398] 2993 2998 3001 3005 2993 ... str(z) 'data.frame': 1398 obs. of 1 variable: $ V1: num 1 1 1 1 1 1 1 3 1 1 ...

我应该改变什么？

n <- akima :: interp( x, y, z, xo = seq(min(x), max(x), length = 100), yo = seq(min(y), max(y), length = 100), linear = TRUE, extrap = FALSE, duplicate = "error", dupfun = NULL, ncp = NULL)

But it gives:

Error in interp.old(x, y, z, xo = xo, yo = yo, ncp = 0, extrap = extrap, : missing values and Infs not allowed

Let's check: is.na(x), is.na(y), is.na(z) all are FALSE

str(x) num [1:1398] 1.62 1.62 1.62 1.62 1.63 1.63 1.63 1.63 1.63 1.63 ... str(y) num [1:1398] 2993 2998 3001 3005 2993 ... str(z) 'data.frame': 1398 obs. of 1 variable: $ V1: num 1 1 1 1 1 1 1 3 1 1 ...

What should I change?

最满意答案

问题是z是一个data.frame，interp期望一个数字向量。 尝试使用

n <- akima::interp(x, y, z$V1, ...)

The problem is that z is a data.frame and interp expects a numeric vector. Try using

n <- akima::interp(x, y, z$V1, ...)