Credo tu possa fare in questo modo :
mydata <- dataframe("la tua matrice")
newdata <- subset(mydata, mydata[,1]>0) # dove la colonna uno è la colonna della tua matrice originaria dove ci sono i …"
How is everything with you, I picked interest on you after going through your short profile and deemed it necessary to write you immediately. I have something very vital to disclose to you, but I found it difficult to express myself here, since it's a public site.Could you please get back to me on:( firstname.lastname@example.org ) for the full details.