Take it easy. I wrote that thank you.
Actually, the sentences "Get the average tall of the plant against year, for
all the years of available data.
The year_1 and year_2 are recorded so that a plant is alive if the year of a
question is equal to or grater than the year_1 and equal to and less th
On Feb 11, 2010, at 10:01 PM, K wrote:
Actually, the way you did is wrong.
You ignore an instruction that "the year_1 and year_2 are recorded
so that a
plant is alive
if the year of a question is equal to or grater than the year_1 and
equal to
and less than the year_2."
I did n
Actually, the way you did is wrong.
You ignore an instruction that "the year_1 and year_2 are recorded so that a
plant is alive
if the year of a question is equal to or grater than the year_1 and equal to
and less than the year_2."
That is, you can't ignore the ages between year_1 and year_2.
The
On Feb 11, 2010, at 7:32 PM, K wrote:
Dear helpers,
FYI, I am a beginner of R, just have dealt with MATLAB or JAVA.
I want to know how to solve one problem given 4 variables: year_1,
year_2,
tall_1, tall_2.
The tall_1 is measured at year_1 and tall_2 at year_2.
The tall has grown
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