We propose a two-sample testing procedure for high-dimensional time series. To obtain the asymptotic distribution of our ∞ -type test statistic under the null hypothesis, we establish high-dimensional central limit theorems (HCLTs) for an α -mixing sequence. Specifically, we derive two ...
2. pwr.t.test(d=.8,sig.level=0.05,power=.9,type="two.sample",alternative="two.sided") 1. 2. 每组中需要34个受试者(总共68人),这样才能保证有90%的把握检测到0.8的效应值,并且最多 5%的可能性会误报差异存在。 (2)t检验问题二: 若检测到总体均值0.5个标准差的差异,且将误报差异的几率限制在...
In this article, we propose a bootstrap test by adopting stationary bootstrap scheme to calculate p value of a typical test which is based on a quadratic form about studentized version of two sample mean vectors differences. Extensive simulations are conducted to compare performances of the boot...
But because the distibution of x is skewed, >the conventional t-test or z-test is not good here. I am following >literature, trying to use bootstrap to do it. > >Basically, the procedure is first to pool the two sample to get a size 2N >sample. Then randomly draw with replacement...
1, powern=100)println("使用$(Threads.nthreads())个线程")power=bootstrapN(p0,p1,200,1600,200;powerN=10000)for(sampleSize,poweri)inpowerifpoweri>0.9@printf"当样本量为%d时,置换检验的p值为显著性的概率POWER为%f\n"sampleSizepowerielse@printf"当样本量为%d时,POWER=%f\n"sampleSizepoweriendend...
thedifference between two sample medians? When to use ? - the underlying distributions are unknown - outliers problems - sample sizes are small - parametric approach don't exist. 回到顶部 Bootstrapping with R Write a function that returns the statistic or statistics of ...
A sieve bootstrap two-sample t-test under serial correlation. The classical two-sample t-test assumes that observations are independent. A violation of this assumption could lead to unreliable or even erroneous conclu... Bei Chensupa/sup,Yulia R. Gelsupa/supsup*/sup - 《Journal of Biopharmace...
Bootstrapped Kolmogorov-Smirnov Test for Epistemic Fuzzy Data A typical two-sample problem we deal with in statistical reasoning is to conclude whether the distributions of these samples differ significantly. In other words, we want to know if the given two samples come from the same distribution....
Choices of the bootstrap block size are investigated via a simulation study and results of the test are compared to traditional approaches. 展开 关键词: Empirical distribution function Random field Spatial block bootstrap Two-sample test DOI: 10.1198/1085711043154 被引量: 16 ...
Here's an example of using the default settings to create a two-column layout with a gap between. .wrapper { .make-row(); } .content-main { .make-lg-column(8); } .content-secondary { .make-lg-column(3); .make-lg-column-offset(1); } ... ... Typography Headings All HTML...