dependence

  1. M

    Comparing distribution of two dependant binary variables different sample size

    Hello everyone, I have been searching for solution for my problem but keeps running into more questions so decided to finally ask for a bit of help. I am working with a dataset in which I want to compare efficiency of two detection techniques. Detection using both techniques are expressed as...
  2. A

    Continuous joint entropy with fully dependent variable

    Consider a variable X with a continuous uniform distribution in the interval [a,b] and a variable Y that is fully dependent on X, i.e., p(Y=y | X=x)=δ(x=y), where δ is a delta distribution with peak x. What is the entropy H(X,Y) of the joint distribution? Intuitively, samples from the joint...
  3. S

    non-mutually exclusive outcomes

    Hi, I have 4 outcomes (A B C D) that one of them is calculated as a weighted average of the first 2 (D=0.6*B + 0.4*C). Then I ran ANOVA to examine the effect of 2 factors on the 4 outcomes. My analysis was rejected because they said that D is not mutually exclusive from all other factors...
  4. M

    dependent or independent

    Dear Sirs, I have situation in which I query different sites on the genome (biologically independent) and for each site I get a measurement. I have a number of measurements that are close together on the genome and I call that a region. I then want to compare the measurements of a region...
  5. M

    dependent samples & correction for multiple testing

    Dear all, I have situation in which I compare many genomic regions between two or more cell lines (CL). Each region is covered by n probes measuring the level of methylation (continuous variable). The coverage (value of n = sample size per region, generally varies between 4 and 20) is...
  6. F

    something like a paried t-test for dependent variables

    Hey, can anyone recommend a test for the following problems. 1) Say I have repeated measurements x_1,...,x_n and y_1,...,y_n such that each measurement may depend on the past. How can I test whether the means in both tests are equal, i.e. mean of x_1,...,x_n equal to mean of y_1,...,y_n ? I...
  7. D

    GLM with Linear Dependencies

    Hi: Newbie to SPSS. Tons of stats and programming knowledge ... but helping a novice with their SPSS work. If I was doing this as a regression in package where I had to type in my own variables, this wouldn't be an issue. I have 2 fixed factors, A and B. There 3 values of A. B is a...
  8. S

    log linear model for dependence

    Hi I fitted a log linear model (proc genmod dist=negative binomial link=log) to see any dependence/association between 3 categorical variables. I know how to evaluate the best model but i have difficulty to explain the following output. parameter p-value...