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 wondering if some one could recommend another function to get the interpolated values? Thanks, Jorge 20100319 2010-03-19 1626 20100320 2010-03-20 NA 20100321 2010-03-21 NA 20100322 2010-03-22 NA 20100323 2010-03-23 NA 20100324 2010-03-24 NA 20100325 2010-03-25 NA 20100326 2010-03-26 1638 20100327 2010-03-27 NA 20100328 2010-03-28 NA 20100329 2010-03-29 NA 20100330 2010-03-30 NA 20100331 2010-03-31 NA 20100401 2010-04-01 NA 20100402 2010-04-02 1669 20100403 2010-04-03 NA 20100404 2010-04-04 NA 20100405 2010-04-05 NA 20100406 2010-04-06 NA 20100407 2010-04-07 NA 20100408 2010-04-08 NA 20100409 2010-04-09 1756 20100410 2010-04-10 NA 20100411 2010-04-11 NA 20100412 2010-04-12 NA 20100413 2010-04-13 NA 20100414 2010-04-14 NA 20100415 2010-04-15 NA 20100416 2010-04-16 1829 20100417 2010-04-17 NA 20100418 2010-04-18 NA 20100419 2010-04-19 NA 20100420 2010-04-20 NA 20100421 2010-04-21 NA 20100422 2010-04-22 NA 20100423 2010-04-23 1912 20100424 2010-04-24 NA 20100425 2010-04-25 NA 20100426 2010-04-26 NA 20100427 2010-04-27 NA 20100428 2010-04-28 NA 20100429 2010-04-29 NA 20100430 2010-04-30 1995 [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.