HI,Barry.
Thanks a lot for your details reply. I have already rewritten the programs. Now
it totally works.
Your comment: " Note the use of comments and breaking the code up into small
independent, testable functions" is really Valuable! Thanks again.
Hi,David,
You are right, My previous code was really horrible. Its not good to make
multiple codes at the same time, sometime I feel really confused about the
original one. About Your comment: "You should indent and space around more
things ( <- for example). And either use = for assignment or <-, don't use both
in the same bit of code.", At the moment, I am still feeling confused about the
different usage of <- and =??
Now I have seperated the code into pieces, now it works. Thanks a lot.
Hi Brian,
Thanks for your suggestion. Seems the error is not when i call list.file. The
true error is what i quote from Barry's suggestion:
"
name = list.files(...)
for(k in 1:length(name)){
log1 = read.table(name[k],....)
while(something){
k =k + 1
log1 = read.table(name[k],...) # 1
}
}
What will happen is that when the last file is read at point #1, the
loop goes round again, k becomes more than the length of name, and it
will fail at #1 again."
Thanks for all your concentration.
Tammy
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