Unexpected parameter value from FindDistribution
Wolfram Community » Statistics & Probability
by Rishi Kumar
1d ago
Hi, If we take a table Table1 ={0.0588235, 0.0491358, 0.0035403, 0.0432735, 0.026303, 0.0202264, 0.0448407, 0.00615208, 0.0519149, 0.00287303, 0.0466974, 0.0152923, 0.036656, 0.0224011, 0.0313708, 0.0256386, 0.0297211, 0.0256386, 0.0313708, 0.0224011, 0.036656, 0.0152923, 0.0466974, 0.00287303, 0.0519149, 0.00615208, 0.0448407, 0.0202264, 0.026303, 0.0432735, 0.0035403, 0.0491358, 0.0588235}. Note that it is symmetric about 0.0297211. Applyin FindDistribution[Table1] we get a uniform distribution UniformDistribution[{-0.079215, 0.143696}] However, for Table 1, the parameter can not be negative ..read more
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Classical origins of the quantum phase space
Wolfram Community » Statistics & Probability
by Nikolay Murzin
2w ago
&[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/nikm/Published/PhaseSpace-01.nb ..read more
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Comparison of Nakagami and Gamma distributions for a list of data
Wolfram Community » Statistics & Probability
by Alex Teymouri
3w ago
Hi, I tried to evaluate the Nakagami and Gamma distributions for monthly wind speed data. Which distribution is better? How to show two distributions in one plot for comparison. I appreciate your support and time. Alex data = {9.9`, 9.`, 12.7`, 13.3`, 11.3`, 10.`, 9.8`, 8.8`, 8.`, 7.4`, 6.8`, 6.8`, 7.1`, 9.4`, 8.4`, 10.`, 15.2`, 11.2`, 9.3`, 9.7`, 8.8`, 8.4`, 6.2`, 7.9`, 7.4`, 8.9`, 10.5`, 9.5`, 9.3`, 11.5`, 7.1`, 8.9`, 6.5`, 5.4`, 7.1`, 7.6`, 8.8`, 10.2`, 14.7`, 11.9`, 9.9`, 9.8`, 10.8`, 10.2`, 8.6`, 8.9`, 8.5`, 8.7`, 8.3`, 10.`, 9.`, 10.5`, 10.2`, 11.5`, 9.6`, 9.9`, 7.8`, 6.8`, 7.3`, 5.7`, 7 ..read more
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How to perform analysis on a FlightData call, that is in a time object format?
Wolfram Community » Statistics & Probability
by Ryder Nocks Baldwin
3w ago
Hello there! I am trying to get data from FlightData to perform analysis on for a project for college! I am getting as far as getting the info, but I am not sure the best way to get everything into a format or a dataframe that would make this easily analyzable. I am familiar with R, but newer to Wolfram... arrivalDelaysRaw = FlightData[ Entity["Airport", "MEM"] -> Entity["Airport", "LGA"], {"ArrivalDelay"}, {DateObject[{2023, 1, 1}], DateObject[{2023, 1, 10}]}]; I call the data with the above, and try to convert with the below, which was working, but isn't working now for some reason. safeC ..read more
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Defining a new distribution on wolfram Mathematica
Wolfram Community » Statistics & Probability
by Dana Alamleh
3w ago
hello everyone !! how can i implement a new distribution in Mathematica ...i tried using the command Kiesdist[/[Lambda],/[Alpha]]=ProbabilityDistribution[(\[Alpha] \[Lambda])/(x - 1)^2 (x/( x - 1))^(\[Alpha] - 1) Exp[-\[Lambda] (x/(x - 1))^\[Alpha]], {x, 0, 1}, Assumptions -> {\[Lambda] > 0, \[Alpha] > 0}] as i am trying to simulate estimates for this distribution using the following command : FindDistributionParameters[data, testDistribution[\[Lambda], \[Alpha]], ParameterEstimator -> "MaximumLikelihood"] but i keep on getting an error message that it isnt a recognized distributio ..read more
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Estimate the parameters of the Kumaraswamy distribution
Wolfram Community » Statistics & Probability
by Dana Alamleh
3w ago
Hello Everyone !! I have been trying to estimate the parameters of the kumaraswamy(alpha ,beta) distribution using 5 different methods (MLE,MOM ,PWM ,self determined PWM,POME ) In the notebook i attached a detailed explanation of the POME method ,my problem is that i am not getting estimates that are reasonable at all ...i have tried to restrict the domain of the dist by truncating the data but the problem still holds ..i have a paper of real life data and estimates were obtained using this method ,so can anyone please have a look at the simulation part and suggest solutions. My goal is to sim ..read more
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An example of multi-level modelling in plants
Wolfram Community » Statistics & Probability
by Rui Alves
1M ago
&[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/a3858b52-b970-4bff-8b9f-a11e1b5bdad7 ..read more
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Emergent competition shapes top-down versus bottom-up control in multi-trophic ecosystems
Wolfram Community » Statistics & Probability
by Zhijie Feng
1M ago
![enter image description here][1] &[Wolfram Notebook][2] [1]: https://community.wolfram.com//c/portal/getImageAttachment?filename=1614Mainimage.PNG&userId=20103 [2]: https://www.wolframcloud.com/obj/6fd27919-4003-4133-8536-d5d3109c3ca4 ..read more
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Confidence regions with nuisance parameters
Wolfram Community » Statistics & Probability
by Jan Vrbik
1M ago
&[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/c78dfa86-f81a-4e43-80ce-cc2e2b7b6976 ..read more
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Showing histogram and PDF of normal distribution in a plot?
Wolfram Community » Statistics & Probability
by M.A. Ghorbani
1M ago
Hi, How do I show complete normal distribution over its histogram? list = {0.014952084292167656`, -0.0011142109478073092`, \ -0.03200699329376222`, 0.02610873317718504`, -0.007922259316024804`, 0.02329423863175964`, 0.0034785055449905455`, -0.007747760345867161`, 0.003986198148096087`, 0.031948672158741004`, -0.01922689853585434`, 0.0232439658404808`, 0.009156392455101026`, 0.05302010750555419`, 0.025142071231658958`, 0.0116075829784546`, -0.001449418525741597`, 0.029618730201622007`, 0.005921508633949274`, -0.0180861548626976`, -0.00510255607675171`, 0.018578990326231004`, 0.01742062363074874 ..read more
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