bootstrap simulation

  1. A

    Unbalanced designs in PERMANOVA and Resampling Methods

    Hi there, I am looking for an answer to this very same question which was posted a long time ago and had no answer in here. The original post was from a new member Yser but I have the same concern, does anybody can help with a though ? "I am a new member here, working mainly in Ecology. I hope...
  2. J

    A change in process is proposed. How do I determine if the change will be good without any data?

    I am working on a project where a machine has a part replaced every 500 hours it's been run or it fails (which ever comes first). I have been asked to determine if we should lower the replacement time to 100 hours to make the machine have better reliability. I have a lot of data of failures of...
  3. rogojel

    testing the bootstrap

    hi, below is an experiment I just did testing whether using a bootstrap I could get better results as with simple repetead sampling. Is there any error in the logic/code? It seems that bootstrapping would just amplify the sampling error without adding any value - what do I miss? This is...
  4. H

    Adjusted R-squared

    Hi, I have a few questions. If I am doing linear regression with only one independent variable, is it ever viable to present an adjusted R-squared value? I am thinking it might be useful since I am looking at several samples of different sizes (some very small), although I am not using...