?numeric Hint: Type numeric(0) and numeric(1) at the prompt and see what you get. What is the sum of anything and a zero length vector? -- Bert Gunter Genentech Non-Clinical Statistics South San Francisco, CA "The business of the statistician is to catalyze the scientific learning process." - George E. P. Box
-----Original Message----- From: r-help-bounces at stat.math.ethz.ch [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of luan_sheng Sent: Tuesday, May 31, 2005 3:22 PM To: r-help at stat.math.ethz.ch Subject: [R] FW: why is it numeric(0)? hello,everyone. I have one question: example 1
x=numeric(0) y=5 print(x+y)
numeric(0) example 2
x=numeric(1) y=5 print(x+y)
[1] 5 why the print(x+y) is numeric(0) at the first example, but the result is 0 at the second example?
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