Displaying 5 results from an estimated 5 matches for "luan_sheng".
2005 Jul 07
3
What method I should to use for these data?
Dear R user:
I am studying the allele data of two populations.
the following is the data:
a1 a2 a3 a4 a5 a6 a7 a8 a9
a10 a11 a12 a13 a14 a15 a16 a17
pop1 0.0217 0.0000 0.0109 0.0435 0.0435 0.0000 0.0109 0.0543
0.1739 0.0761 0.1413 0.1522 0.1087 0.0870 0.0435 0.0217 0.0109
pop2 0.0213 0.0213 0.0000 0.0000 0.0000 0.0426 0.1702 0.2128
0.1596 0.1809 0.0957 0.0745 0.0106
2005 May 31
3
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?
__________________________________________________
佈伵伝仮伱佲伔佈G佊伿佅佷仯伃佒佇伖侜伒佢佉伝伨侙佄佫伬伂伝侙佊伿伡侢伾仹伻伵伋伂伌侒佊伿佅佷
2005 Jun 09
1
May I ask you a question about matrix population models?
...My question is that:Now I do some research about one
marine shrimp: Penaeus chinensis, it's life cycle is one year. after it
breed it's offsprings, it will died. This shrimp's life cycle is dicrete
,if i use project matrix or life cyle graph to express it,how can i do it?
Best regards
luan_sheng
2005 May 27
2
how to get this kind of binomial distribution simulation number?
hai, I want to perform a simulation like this仯伜
Suppose that I have one population ,it's size is 500, is composed of x,y
and z. The probability of x, y and z is respectively is 0.3, 0.5, 0.2. I
wan to simulate a new same size population based ratio of x, y and z, how
can I get and assess the number of x, y and z. ?
luan
Key Laboratory for Sustainable Utilization of Marine Fisheries
2005 Jun 06
1
how to change the current directory to my folder.
I want to th current folder is the specific folder when R start.It is
very boring to modify the current directory manually. How can I do it?