projects / epclust.git / blame
| Commit | Line | Data |
|---|---|---|
| 3dcbfeef BA |
1 | #TODO: setRefClass... to avoid copy data !! |
| 2 | #http://stackoverflow.com/questions/2603184/r-pass-by-reference | |
| 3 | ||
| 4 | #fields: data (can be NULL or provided by user), coeffs (will be computed | |
| 5 | #con can be a character string naming a file; see readLines() | |
| 6 | #data can be in DB format, on one column : TODO: guess (from header, or col. length...) | |
| 7 | epclust = function(data=NULL, con=NULL, raw=FALSE, K, nbPerChunk, ..., where_to_store_tmp_data, and how ?) | |
| 8 | #options for tmp files: in RAM, on disk, on DB (can be distributed) | |
| ac1d4231 BA |
9 | { |
| 10 | ||
| 11 | ||
| ac1d4231 | 12 | #on input: can be data or con; data handled by writing it to file (ascii or bin ?!), |
| ac1d4231 BA |
13 | |
| 14 | ||
| 15 | if (!is.null(data)) | |
| 16 | { | |
| 17 | #full data matrix | |
| 3dcbfeef BA |
18 | index = 1 |
| 19 | n = nrow(data) | |
| 20 | while (index < n) | |
| 21 | { | |
| 22 | getCoeffs(data | |
| 23 | index = index + nbSeriesPerChunk | |
| 24 | } | |
| ac1d4231 BA |
25 | } else if (!is.null(con)) |
| 26 | { | |
| 27 | #incremental connection | |
| 28 | #read it one by one and get coeffs until nbSeriesPerChunk | |
| 29 | #then launch a clustering task............ | |
| 3dcbfeef | 30 | readLines() |
| ac1d4231 BA |
31 | } else |
| 32 | stop("at least 'data' or 'con' argument must be present") | |
| 33 | ||
| 34 | } | |
| 3dcbfeef BA |
35 | |
| 36 | getCoeffs = function(series) | |
| 37 | { | |
| 38 | #... return wavelets coeffs : compute in parallel ! | |
| 39 | } |