Hi,

This is a simple question with if elseif....however I am having trouble

constructing the solution for some reason.

Suppose I have a data set with 3 variables, a, b and c say. Let's say c

is the sum of a and b. So:

a b c

1 2 3

2 3 5

3 4 7

. . .

. . .

. . .

Suppose that I know there have been some data entry errors and I want to

check if ALL values in c is really the sum of a and b, and if not, print

out the whole line (i.e. all values of a, b and c in that row).

Any help on how I can write this if elseif block will be apprecaited!

Ko-Kang

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Ko-Kang Kevin Wang

Postgraduate PGDipSci Student

Department of Statistics

University of Auckland

New Zealand

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