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Statistics版 - 对比曲线的形状有什么方法吗?
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进入Statistics版参与讨论
1 (共1页)
k*****t
发帖数: 375
1
请问一下,如果想对比两组曲线的形状,有什么方法吗?
两组曲线分别来自不同的种群,按照特定的时间点(每个ID测11 个点),按顺序测量
下来的。
谢谢!
D******n
发帖数: 2836
2
Its not how but what do u wanna get out of it. If u wanna compare group
effect, u just model it, u dont need to plot it. or u wanna compare them
just plot it and see.
y=group+id+time
s*r
发帖数: 2757
3
depends on the two lines, if there is no crossover, an AUC may be good
enough
T*******I
发帖数: 5138
4
What is the AUC here? Thanks!

【在 s*r 的大作中提到】
: depends on the two lines, if there is no crossover, an AUC may be good
: enough

k*****t
发帖数: 375
5
Area Under Curve

【在 T*******I 的大作中提到】
: What is the AUC here? Thanks!
k*****t
发帖数: 375
6
关键就在这里,有crossover

【在 s*r 的大作中提到】
: depends on the two lines, if there is no crossover, an AUC may be good
: enough

T*******I
发帖数: 5138
7
Thank you very much. One more question:
What if there is a crossover?

【在 k*****t 的大作中提到】
: 关键就在这里,有crossover
s*r
发帖数: 2757
8
http://www.genetics.org/cgi/content/full/154/1/299
The size and shape of the posterior lobe of the male genital arch differs
dramatically between Drosophila simulans and D. mauritiana. This difference
can be quantified with a morphometric descriptor (PC1) based on elliptical
Fourier and principal components analyses.
o*******6
发帖数: 6113
9
Does Q-Q plot solve your problem?
s******u
发帖数: 21
10
我刚做了一个类似的 project.
there are 3 groups, ni individuals in ith group (i=1,2,3); for each
individual we have 10 measurements at different time (so there is a curve
for each individual). the objective is to compare the curves between
different group.
和你的问题是一样的吗?

【在 k*****t 的大作中提到】
: 请问一下,如果想对比两组曲线的形状,有什么方法吗?
: 两组曲线分别来自不同的种群,按照特定的时间点(每个ID测11 个点),按顺序测量
: 下来的。
: 谢谢!

l****a
发帖数: 352
11
no, yours doesnt have crossover...
how did u do it? calculated ln(AUC) and run a mixed model?

【在 s******u 的大作中提到】
: 我刚做了一个类似的 project.
: there are 3 groups, ni individuals in ith group (i=1,2,3); for each
: individual we have 10 measurements at different time (so there is a curve
: for each individual). the objective is to compare the curves between
: different group.
: 和你的问题是一样的吗?

s******u
发帖数: 21
12
whatdoes crossover mean? 两条线没有交叉?
in my case, two curves for two individuals 基本都是有交叉的啊?

【在 l****a 的大作中提到】
: no, yours doesnt have crossover...
: how did u do it? calculated ln(AUC) and run a mixed model?

1 (共1页)
进入Statistics版参与讨论
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R-square of logistic regressionHow to account for variation within a data point?
相关话题的讨论汇总
话题: crossover话题: auc话题: what话题: 对比曲线话题: group