R/to_px3.R

In gibonet/df2px: Convert a Data Cube from Data Frame to px File

to_px3 <- function(.cube, vars, measure_vars, measure_name = NULL, 
                   .symbols = c("X", "...", "()"), TITLE = "Title unknown",
                   PRECISION = NULL, SHOWDECIMALS = 0, info = "info"){
  livelli_variabili <- lapply(.cube[ , rev(vars)], function(x) as.character(unique(x)))
  
  # 1. Creazione STUB
  s01 <- add_quotes(vars)
  s02 <- riduci_virgole(s01)
  STUB <- paste0("STUB=", s02, ";")
  
  # 2. Creazione HEADING
  if(is.null(measure_name)){
    HEADING <- NULL
  }else{
    h01 <- add_quotes(measure_name)
    HEADING <- paste0("HEADING=", h01, ";")
  }
  
  # 3. Creazione VALUES
  v01 <- lapply(livelli_variabili, add_quotes)
  v02 <- lapply(v01, riduci_virgole)
  
  if(is.null(measure_name)){
    v03 <- NULL
  }else{
    v03 <- paste0("VALUES(", add_quotes(measure_name), ")=", 
                  riduci_virgole(add_quotes(measure_vars)), ";")
  }
  
  v04 <- lapply(rev(vars), add_quotes)
  
  VALUES <- paste0("VALUES(", v04, ")=", v02, ";")
  VALUES <- c(v03, VALUES)
  
  if(is.null(PRECISION)){
    PRECISION <- NULL
  }else{
    # PRECISION = c("misura", "ETP")
    PRECISION <- paste(add_quotes(PRECISION), collapse = ", ")
    PRECISION <- paste0("PRECISION(", PRECISION, ")=4;")
  }
  
  
  # 4. Creazione DATA
  DATA <- .cube[ , measure_vars, drop = FALSE]
  info <- .cube[[info]]  # colonna 'info' del cubo in formato semi-tidy
  k_X <- info == .symbols[1]
  k_dots <- info == .symbols[2]
  DATA[k_X, ] <- "\"..\""
  DATA[k_dots, ] <- "\"...\""
  # DATA[] <- lapply(DATA, round)
  DATA <- Reduce(paste, DATA)
  # DATA <- gsub("NA", "\"..\"", DATA)
  DATA <- c("DATA=", DATA, ";")
  
  # 4.1 DATASYMBOL2 e DATASYMBOL3
  DATASYMBOL2 <- paste0("DATASYMBOL2=", add_quotes(.symbols[1]), ";")
  DATASYMBOL3 <- paste0("DATASYMBOL3=", add_quotes(.symbols[2]), ";")
  
  # 4.2 Eventuali DATANOTECELL e DATASYMBOL5
  k_par <- which(info == .symbols[3])
  DATANOTECELLS_data <- .cube[k_par, c(vars, measure_name), drop = FALSE]
  DATANOTECELLS <- vector(mode = "character", length = length(k_par))
  
  # Provo con una DATANOTECELL
  DATANOTECELLS_data[] <- lapply(DATANOTECELLS_data, as.character)
  for(i in seq_along(DATANOTECELLS)){
    DATANOTECELLS[i] <- paste0("DATANOTECELL(", 
                               riduci_virgole(add_quotes(DATANOTECELLS_data[i, ])),
                               ")=", add_quotes(.symbols[3]), ";")
  }
  # DATANOTECELLS[1] <- paste0("DATANOTECELL(", 
  #                            riduci_virgole(add_quotes(DATANOTECELLS_data[1, ])),
  #                            ")=", add_quotes(.symbols[3]), ";")
  DATASYMBOL5 <- paste0("DATASYMBOL5=", add_quotes(.symbols[3]), ";")
  
  # DATANOTECELL[fr]("2002","Région lémanique (VD, VS, GE)","8","Position 1+2","Femme","Médiane")="( )";
  
  
  
  # 5. Assemblamento 1-4. più le keywords "fisse" (per il momento)
  #    in un vettore character che in pratica costituisce il file
  #    .px
  creation_date <- gsub(pattern = "-", replacement = "", x = Sys.time())
  creation_date <- substr(creation_date, 1, 14)
  
  last_updated <- gsub(pattern = "-", replacement = "", x = Sys.time())
  
  TITLE <- add_quotes(TITLE)
  TITLE <- paste0(TITLE, ";")
  keywords01 <- c("CHARSET=\"ANSI\";", "AXIS-VERSION=\"2000\";", 
                  paste0("CREATION-DATE=\"", creation_date, "\";"),
                  "DECIMALS=11;", paste0("SHOWDECIMALS=", SHOWDECIMALS, ";"),
                  "MATRIX=\"file000\";",
                  "SUBJECT-CODE=\"xx\";", 
                  "SUBJECT-AREA=\"unknown\";",
                  paste0("TITLE=", TITLE), 
                  "CONTENTS=\"unknown\";",
                  "UNITS=\"unknown\";")
  keywords02 <- c(paste0("LAST-UPDATED=\"", last_updated, "\";"),
                  "INFO=\"File generated using R\";")
  res <- c(
    keywords01,
    STUB,
    HEADING,
    VALUES,
    PRECISION,
    keywords02,
    DATASYMBOL2,
    DATASYMBOL3,
    DATASYMBOL5,
    DATANOTECELLS,
    DATA
  )
  
  res
}