performance

  1. N

    Comparison and visualization of multiple output data files

    I have 100 data files corresponding to 100 samples. For these 100 data files, I have processed data in 4 different ways to generate result output files. Out of the 4 results files per sample, I would like to consider one of these files as a true result. Now I want to compare the other 3 output...
  2. M

    Variable importance in random forest

    Hi, In order to predict a binary target variable, I trained a random forest with 84 explanatory variables (using 10 variables randomly selected in each split) on a training set composed of 8,500 observations. For practical reasons, I had to test the performance of the algorithm on a test...
  3. M

    software speed

    Not homework BTW ... I want to measure the processing time (performance) of some software under a set of fixed conditions. I have a means to log the start and stop of the processing. The only possible factors are some uncontrollable (noise) factors, e.g., the CPU and memory usage. Then there is...
  4. J

    how to measure change in performance ? Using regression model ? HELP

    Hi everyone, I have to measure the difference of the performance of firms before and after an event. Let's say the performance at (event - 1year) is 10%, and perf at (event +1y) is 12%, then the delta is +2%. However, here, we solely measured the difference. Hence what kind of model...
  5. I

    How to test Accuracy significantly different from chance?

    Hi All, So I have more than 60 subjects who participated in an experiment. I would like to exclude those who performed at chance level. The problem is where should I set my cut off? Is 55% not chance? And 57? So my prof said I should test if the suspect cases significantly differ...
  6. C

    Best test for normal distribution with as little samples / highest accuracy

    Hi there, I only completed one statistics class yet and now struggle with my first project involving statistics. :-) I want to conduct an evaluation where items are rated according to particular scales, leading to a lot of probability distributions, where there is one distribution for each...