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Random numbers

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  • J Jorgen Andersson

    So I needed a function for creating a million random numbers, so I could test some statistic functions I'm building. But where do I find a reliable source of a million truly random numbers? On Amazon of course! A Million Random Digits With 100, 000 Normal Deviates: Rand Corporation: 9780029257906: Amazon.com: Books[^] Do read the comments! some are hilarious.

    Wrong is evil and must be defeated. - Jeff Ello

    H Offline
    H Offline
    honey the codewitch
    wrote on last edited by
    #2

    I needed something like that some time ago. I found this RANDOM.ORG - HTTP Interface Description[^] It's pretty great.

    When I was growin' up, I was the smartest kid I knew. Maybe that was just because I didn't know that many kids. All I know is now I feel the opposite.

    J 1 Reply Last reply
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    • H honey the codewitch

      I needed something like that some time ago. I found this RANDOM.ORG - HTTP Interface Description[^] It's pretty great.

      When I was growin' up, I was the smartest kid I knew. Maybe that was just because I didn't know that many kids. All I know is now I feel the opposite.

      J Offline
      J Offline
      Jorgen Andersson
      wrote on last edited by
      #3

      Yes, but with a quota of 200000 bits per day, it will take a while to do the tests. :)

      Wrong is evil and must be defeated. - Jeff Ello

      H 1 Reply Last reply
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      • J Jorgen Andersson

        Yes, but with a quota of 200000 bits per day, it will take a while to do the tests. :)

        Wrong is evil and must be defeated. - Jeff Ello

        H Offline
        H Offline
        honey the codewitch
        wrote on last edited by
        #4

        i was thinking you could download it in batches. They have a bulk generator.

        When I was growin' up, I was the smartest kid I knew. Maybe that was just because I didn't know that many kids. All I know is now I feel the opposite.

        J 1 Reply Last reply
        0
        • J Jorgen Andersson

          So I needed a function for creating a million random numbers, so I could test some statistic functions I'm building. But where do I find a reliable source of a million truly random numbers? On Amazon of course! A Million Random Digits With 100, 000 Normal Deviates: Rand Corporation: 9780029257906: Amazon.com: Books[^] Do read the comments! some are hilarious.

          Wrong is evil and must be defeated. - Jeff Ello

          R Offline
          R Offline
          Rick York
          wrote on last edited by
          #5

          Great comments ! I needed a bunch of random numbers once and I grabbed a WinAES wrapper class from here and used it. It worked out pretty well.

          "They have a consciousness, they have a life, they have a soul! Damn you! Let the rabbits wear glasses! Save our brothers! Can I get an amen?"

          J 1 Reply Last reply
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          • J Jorgen Andersson

            So I needed a function for creating a million random numbers, so I could test some statistic functions I'm building. But where do I find a reliable source of a million truly random numbers? On Amazon of course! A Million Random Digits With 100, 000 Normal Deviates: Rand Corporation: 9780029257906: Amazon.com: Books[^] Do read the comments! some are hilarious.

            Wrong is evil and must be defeated. - Jeff Ello

            L Offline
            L Offline
            Lost User
            wrote on last edited by
            #6

            Jörgen Andersson wrote:

            But where do I find a reliable source of a million truly random numbers?

            Using a search engine you should be able to find a hardware number generator that uses Cesium-137 or Potassium-40. The hardware coming out of Switzerland seems expensive at around €900. Best Wishes, -David Delaune

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            • J Jorgen Andersson

              So I needed a function for creating a million random numbers, so I could test some statistic functions I'm building. But where do I find a reliable source of a million truly random numbers? On Amazon of course! A Million Random Digits With 100, 000 Normal Deviates: Rand Corporation: 9780029257906: Amazon.com: Books[^] Do read the comments! some are hilarious.

              Wrong is evil and must be defeated. - Jeff Ello

              M Offline
              M Offline
              maze3
              wrote on last edited by
              #7

              how many digits of a number?

              1 Reply Last reply
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              • J Jorgen Andersson

                So I needed a function for creating a million random numbers, so I could test some statistic functions I'm building. But where do I find a reliable source of a million truly random numbers? On Amazon of course! A Million Random Digits With 100, 000 Normal Deviates: Rand Corporation: 9780029257906: Amazon.com: Books[^] Do read the comments! some are hilarious.

                Wrong is evil and must be defeated. - Jeff Ello

                A Offline
                A Offline
                Amarnath S
                wrote on last edited by
                #8

                And this book is published in 1955. I wonder what computer they used.

                J 1 Reply Last reply
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                • J Jorgen Andersson

                  So I needed a function for creating a million random numbers, so I could test some statistic functions I'm building. But where do I find a reliable source of a million truly random numbers? On Amazon of course! A Million Random Digits With 100, 000 Normal Deviates: Rand Corporation: 9780029257906: Amazon.com: Books[^] Do read the comments! some are hilarious.

                  Wrong is evil and must be defeated. - Jeff Ello

                  D Offline
                  D Offline
                  DerekT P
                  wrote on last edited by
                  #9

                  My late Mum (a statistician) had a book of random numbers in the living room bookshelf. It was one of the most used books when I was a kid (if only because it was regularly taken out to show friends what a weirdo Mum was! :laugh: ;) ) It was a hardcover book, possibly the same as this one (same layout of the random numbers) but I think it just got put in a skip when she downsized in the 1980s. And this hardcover version is selling at $495 !! :doh: X|

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                  • A Amarnath S

                    And this book is published in 1955. I wonder what computer they used.

                    J Offline
                    J Offline
                    Jorgen Andersson
                    wrote on last edited by
                    #10

                    They didn't, they used an electronic roulette wheel and fed the numbers into an IBM punch during May-June 1947. It's in the introduction to the book.

                    Wrong is evil and must be defeated. - Jeff Ello

                    1 Reply Last reply
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                    • H honey the codewitch

                      i was thinking you could download it in batches. They have a bulk generator.

                      When I was growin' up, I was the smartest kid I knew. Maybe that was just because I didn't know that many kids. All I know is now I feel the opposite.

                      J Offline
                      J Offline
                      Jorgen Andersson
                      wrote on last edited by
                      #11

                      Yes, but with a quota, if you want more you have to pay. And it costs a bit more than I want to pay just to test an idea I have.

                      Wrong is evil and must be defeated. - Jeff Ello

                      1 Reply Last reply
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                      • R Rick York

                        Great comments ! I needed a bunch of random numbers once and I grabbed a WinAES wrapper class from here and used it. It worked out pretty well.

                        "They have a consciousness, they have a life, they have a soul! Damn you! Let the rabbits wear glasses! Save our brothers! Can I get an amen?"

                        J Offline
                        J Offline
                        Jorgen Andersson
                        wrote on last edited by
                        #12

                        Seems like the way to go for me. Everything truly random costs money, and I'm just testing something to disprove an idea I had.

                        Wrong is evil and must be defeated. - Jeff Ello

                        1 Reply Last reply
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                        • J Jorgen Andersson

                          So I needed a function for creating a million random numbers, so I could test some statistic functions I'm building. But where do I find a reliable source of a million truly random numbers? On Amazon of course! A Million Random Digits With 100, 000 Normal Deviates: Rand Corporation: 9780029257906: Amazon.com: Books[^] Do read the comments! some are hilarious.

                          Wrong is evil and must be defeated. - Jeff Ello

                          C Offline
                          C Offline
                          carlospc1970
                          wrote on last edited by
                          #13

                          There should be a low-cost way of generating random numbers.

                          K 1 Reply Last reply
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                          • C carlospc1970

                            There should be a low-cost way of generating random numbers.

                            K Offline
                            K Offline
                            k5054
                            wrote on last edited by
                            #14

                            Raspberry pi's come with a hardware RNG. I don't think they get much cheaper than that. See here: [Raspberry Pi internal hardware random number generator - A study of entropy](https://sites.google.com/site/astudyofentropy/project-definition/raspberry-pi-internal-hardware-random-number-generator)

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