ranking

  1. Q

    What method to use for comparing rankings?

    I'm into gambling on trotting (harness horse racing) and have a set of indicators I use to create my own rankings for each race on the race days I want to bet. There are quite a few services around (this is in Sweden) that gives you their ranking. I have found that usually when the ranknings are...
  2. U

    What is the reason behind getting unbiased and efficient estimator by ranked set samp

    In ranked set sampling (RSS), we select n random sets, each of size n. Then we choose the largest unit from the 1st set, 2nd largest from the 2nd set, and thus n th largest from the n th set for the actual measurement. What is the intuition that a sample thus obtained will give an unbiased...
  3. O

    How to assign weighting to variables when ranking football players

    I have a data set of a number of different variables that relate to the performances of footballers in matches. Examples include Accurate Passes/90 mins, Crosses/90 mins and Headers/90mins. Rather than taking the actual value in each column, I have replaced it with a rank. So, given there are...
  4. M

    Statistical method to rank Likert-items

    Dear Readers, Currently, I am conducting a study to investigate the need for assistance with a certain process. I used a survey including Likert-items for my study. In this way, I want to be able to rank the aspects of the process from 'most assistance needed' to 'least assistance needed'...
  5. S

    Sample Data Provided! Ranking Content Performance in Email Sends

    Hello! I have searched the forum, but my question is so specific and I know so little I cannot identify threads that would answer my question. I'm attempting to create a weighted ranking of content served in emails. I have done some work already, but I'm not sure how to proceed. Thank you...
  6. V

    How to rank test scores when number of questions answered is different

    I want to rank people based on their test scores but the number of questions each individual has answered is different. People with "n" answers or less will be excluded from being ranked. Everyone gets one question daily. A running test score is calculated based on the number of correct...
  7. V

    mathematical model to build a ranking/ scoring system

    I want to rank a set of sellers. Each seller is defined by parameters var1,var2,var3,var4...var20. I want to score each of the sellers. Currently I am calculating score by assigning weights on these parameters(Say 10% to var1, 20 % to var2 and so on), and these weights are determined based on...
  8. N

    Difference between samples in terms of frequency ranks

    I have 3 different texts, and for each one of them, I have the frequencies of 25 letters appearing in those texts (Text A, letter A, freq = 5013; Text A, letter B, freq = 1462,...). These texts have different, and not normal distributions. I would like to know, if there's any significant...
  9. K

    Scoring model/formula to rank based on accuracy of data sources

    Let us say i have 5 different data sources. My aim is arrive a score to arrive the accuracy of this data sources. It is like below 1. Refer the section Data confidence calculation in http://ibmdatamag.com/2014/07/measuring-confidence-in-data/ 2...
  10. D

    Help with ranking data from pairwise comparison

    I am looking for a way to visualize pairwise comparisons from a non-parametric statistical test called Cochran's Q test. I am using the function below which returns the test statistic and p-value for each comparison. nprod <- ncol(mydf) pd <- sort(colnames(mydf)) cb <- combn(pd,2) nb...
  11. L

    Aligned rank transform with random factor

    In a book, I've found SPSS syntax for performing an aligned rank transformation in a two way ANOVA. The procedure is: - save residuals by performing a standard ANOVA - use Aggregate to determine effects for group means (mij for interaction, ai as first factor, bj for second factor) -...
  12. D

    Evaluating Ranked lists

    Hi, I implemented ranking algorithm to rank relevant documents to a given topic. So the algorithm produces ranked list of documents for each topic. For example: Lets say topic A has 25 relevant documents, our experiment select another 25 random documents and rank these 50 document for the...
  13. D

    How do you give a rank to a data range

    I am looking at the ranking of universities in various rankings tables, and making an aggregation of this data. The issue comes in that in some of the rankings, below a certain rank, the data is grouped. For example, after a rank of 9, the next 5 universities are just listed with a rank of...
  14. C

    combining results obtained from 3 different methods

    Hello, I have received data tables where 3 methods have been used on 54 different variables. Method 1 (M1): multivariate model of logistic regression, to see if the 54 variables influence the outcome (only 24 do) Method 2 (M2): a sampling approach Method 3 (M3): a circular permutation...
  15. F

    Ranking Method Comparison

    Hi, I have 15 items that need to be ranked from 1 to 15. I have two methods to do the ranking, method A and method B. Method A is where I have 15 users rank all items on a scale of 1 to 5. (5 Being best). I then take the sum of user ranks for a given item and the highest sum becomes the rank 1...
  16. F

    Nonparametric alternative for Spearman's rho for correlation strength?

    My question is as simple as it may be difficult: is there any other nonparametric test besides Spearman's rho to compute the correlation strength between a predictor and an outcome variable of which the first is almost certain to have a skewed distribution? The reason why I'm asking is that in...
  17. L

    Use Likert scale mean to calculate a ranking of several answers?

    Hello again, As my last question was very successfully answered, which I am very thankful for, I do it again :) I have 6 Likert type questions (very important - not important at all). I know that it is not recommended to interpret the mean. But what I want to do is, I want to rank...
  18. A

    How do I rank variables collected by a Likert scale questionnaire?

    I have gathered data from about 70 construction firms who are not currently using a specific software and I asked them why they have not implemented such a software based on 5 point Likert scale. The variables were, high cost, long time required for implementation, difficulty of using the...
  19. G

    Which stats test to use?

    Hi I have two lists (for example), as follows: 1: Horses 2: Houses 3: Cars 4: Cats 5: Bananas 6: Shovels 7: Boats 8: Sheep 9: Forks 10: Spoons 1: Cats 2: Cars 3: Houses 4: Forks 5: Spoons 6: Shovels 7: Horses 8: Boats 9: Bananas 10: Sheep The two orderings have...
  20. G

    Stats test to compare sports leagues tables

    Hi I want to generate a sports league table using two different methods. I think I will end up with the teams in different positions and I want to determine if the two tables are statistically different. Is that possible? I have been looking at Spearman correlation or the Kendall tau, but...