interpolation function
I do not understand your question. If this was not a sparse matrix, then I would have asked you refer into the missing value literature. Even there, people generally remove any columns/rows that have too many missing values to avoid unreliable results. And since this is a sparse matrix, you are going to have too many missing values on all rows and columns. I could be wrong but if I am, someone will tell me that soon enough. Regards, Adai
On Fri, 2005-08-05 at 12:12 +0000, Âå´ Â昊wrote:
Hi, I have a sparse matrix.I want to fill values into the entries whose value is 0.The new generated values should come from the interpolation of the values have existed.Does R provide such interpolation functions which operate on Matrix, for example ,such a matrix below 0 0 0 0 2.3 0 0 0 0 0 0 3.1 0 0 0 0 1.4 0 0 0 0 0 0 0 0 0 0 1.1 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 0 0 0 0 3 0 0 0 0 6 0 0 0 0 0 0 9 0 0 0 0 thanks a lot hao wu
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