search for: interpna

Dear All, I am facing problem with NA treatment in my financial time series data. # data reading aluminum = read.csv(file="alu.csv", header=T, sep=",") fut = aluminum [,2] spt = aluminum [,3] # Missing Value Treatment (Linear Interpolation) spt = interpNA(spt, method = c("linear")) fut = interpNA(fut, method = c("linear")) fut=fut[,1] spt =spt[,1] spt = interpNA(spt, method = c("linear")) Error in interpNA(spt, method = c("linear")) : spt is not a tis object > fut = interpNA(fut, method = c("linear&...

Hi, I have a two Colum matrix ( I named it holder) as shown bellow. It seems to be three columns, but the first column contains the row names. I am trying to fill all NAs by linear interpolation the known values in the matrix. I tried using the interpNA function, but I get an error message: > interpNA(holder, method = "linear") Error in approx(idx, x[idx], 1:n, method = method, f = f) : need at least two non-NA values to interpolate In addition: Warning message: In xy.coords(x, y) : NAs introduced by coercion > I was wonderi...