Message-ID: <Pine.LNX.4.44.0310071259390.28305-100000@env-pc-phd13>
Date: 2003-10-07T12:03:57Z
From: Laura Quinn
Subject: Beginner's query - segmentation fault
I am dealing with a huge matrix in R (20 columns, 54000 rows) and have
lots of missing values within the dataset which are currently displayed as
the value "-999.00" I am trying to create a new matrix (or change the
existing one) to display these values as "NA" so that I can then perform
the necessary analysis on the columns within the matrix.
The matrix name is temp and the column names are t1 to t20 inclusive.
I have tried the following command:
temp$t1[temp$t1 == -999.00] <- NA
and it returns a segmentation fault, can someone tell me what I am doing
wrong?
Thanks
Laura