search for: numnas

Dear Sir, In the functions orderVector1, orderVector1l (R-3.5.2/src/main/sort.c) there are two loops concerning nalast (lines 1096, 1105). I am not sure about the possibility of redefining them, so this function should be a little faster. The first one (line 1096) can be included in the previous 'switch' block (line 1079) (see below). And if you rewrite/duplicate this 'switch'

Dear R-Helpers, I have a large data matrix (9707 rows, 60 columns), which contains missing data. The matrix looks something like this: 1) X X X X X X NA X X X X X X X X X 2) NA NA NA NA X NA NA NA X NA NA 3) NA NA X NA NA NA NA NA NA NA 5) NA X NA X X X NA X X X X NA X .. 9708) X NA NA X NA NA X X NA NA X .and so on. Notice that every row has a varying number of entries, all rows

Hola, ¿qué tal? ¿Y por qué no, simplemente, sapply(mi.data.table, function(x) sum(is.na(x)))? Un saludo, Carlos J. Gil Bellosta http://www.datanalytics.com El día 19 de junio de 2015, 14:44, Olivier Nuñez <onunez en unex.es> escribió: > Si te devuelve 0 para todas las columnas es que no hay NA's. > Tal vez son caracteres igual a "NA". > Para asegurarte de ello,