data sample

  1. B

    Methods for data sample consistency

    Hello, I would like to ask you for your opinion: I have one data sample, let´s say with 600 units used for calculating some statistics (for example mean, std. deviation, q-o-q changes etc.) between the years 2006 and 2016. But from 2017 I would like to extend this data sample to let´s say 700...
  2. P

    How to select the training dataset

    I have a dataset which contains dependent variance Y and several independent variances X1, ... , X10. Y has 5 possible values: A, B, C, D, E, a proportion of each value is: A: 80%, B:10%, C:5%, D:3%, E:2%. I want to build a model to predict the value of Y, I decide to pick up 70% of the...