sciruby | 易学教程

Generate Array of Numbers that fit to a Probability Distribution in Ruby?

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问题 Say I have 100 records, and I want to mock out the created_at date so it fits on some curve. Is there a library to do that, or what formula could I use? I think this is along the same track: Generate Random Numbers with Probabilistic Distribution I don't know much about how they are classified in mathematics, but I'm looking at things like: bell curve logarithmic (typical biology/evolution) curve? ... Just looking for some formulas in code so I can say this: Given 100 records, a timespan of 1

failed to install sciruby

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问题 I am trying to install SciRuby on my Ubuntu 14.04 machine but installation failed. I also have an open github issue issue but had no success in installation process. By looking at the errors I am sure there some C/C++ compilation problem. Any help would be appreciated ➜ ~ gem install sciruby-full Building native extensions. This could take a while... ERROR: Error installing sciruby-full: ERROR: Failed to build gem native extension. /home/abhimanyuaryan/.rvm/rubies/ruby-2.2.3/bin/ruby -r .

kernel dies when creating iruby notebook

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问题 I am completely noob in SciRuby. For the first time I am using SciRuby. I am following this video to get an overview of how to use SciRuby and plot graphs, charts etc. When I go to localhost:8888 and I create new notebooks from right drop down(Ruby 2.2.3) I am in home(~) dir Then at first it says Kernel connecting and then dead kernel message pops up again and again(within gap of few seconds). Nothing happens and the commands I am writing seems to have no effect. Please get this issue solved

Generate Array of Numbers that fit to a Probability Distribution in Ruby?

阅读更多关于 Generate Array of Numbers that fit to a Probability Distribution in Ruby?

Say I have 100 records, and I want to mock out the created_at date so it fits on some curve. Is there a library to do that, or what formula could I use? I think this is along the same track: Generate Random Numbers with Probabilistic Distribution I don't know much about how they are classified in mathematics, but I'm looking at things like: bell curve logarithmic (typical biology/evolution) curve? ... Just looking for some formulas in code so I can say this: Given 100 records, a timespan of 1.week , and an interval of 12.hours set created_at for each record such that it fits, roughly, to curve