R: How to read in numbers with comma as a Dec separator & a Field separator? “The two arguments to fread 'dec' and 'sep' are equal (',').”
问题 This is partially related to reading in files in so-called European way, more in How to read in numbers with a comma as decimal separator?. I have data with a row such as "Invoice","1324","Name","John","Age","10","Height","143,5","Products","1;2;3;4","ProductIDs","01;02;03;04" where a comma acts as a separator of field values and inside the field values, delimited with double-quotes, comma acts as a decimal separator. Inside field values, the semicolon also acts as other separator but we can