data_extract

Extract data from pdb files.

> data_extract(year, ctry, start_folder, out_format)

Arguments

• year : the number of years after 2000;
• ctry : a list of characters with the two letter country codes to extract;
• start_folder : (option) a string with the path to the folder where the pdb files are, if not provided the current working directory is used (getwd()); the folders should be divided by the "/" character and should end with "/" character.;
• out_format : (option) character _c_, _l_, or _r_ what type of data shall be in the output data frame; it takes the value _r_ if it is missing.

Returns

It provides a list of 4 data frames containing the data from the d, h, p, and r SAS data files.

Examples

> data_extract(14,c("AT","DE","EL"),"z:/pdb/","r")
> data_extract(9,c("AT","DE","EL","CH","UK"),"y:/pdb/","c")