Trying to produce a proper pdf, cdf and histogram from data

Question

Nathaniel Porter 2022-2-24

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https://ww2.mathworks.cn/matlabcentral/answers/1657950-trying-to-produce-a-proper-pdf-cdf-and-histogram-from-data

评论： Nathaniel Porter 2022-2-24

InsulinReadings.mat

在 MATLAB Online 中打开

load InsulinReadings.mat

xX2 = InsulinReadings;

xX2(xX2==0)=missing;

A2 = mean(xX2,'all',"omitnan")

A2 = 296.9102

B2 = median(xX2,'all',"omitnan")

B2 = 86.4899

C2 = max(xX2,[],'all',"omitnan")

C2 = 1.0226e+04

D2 = min(xX2,[],'all', "omitnan")

D2 = 3.6900e-07

histogram(xX2)

[D PD] = allfitdist(xX2,'PDF');

Unrecognized function or variable 'allfitdist'.

xlabel('Insulin');

%Now get the CDF

[D PD] = allfitdist(xX2,'CDF');

xlabel('Insulin')

Using the data presented I am trying to produce better diagrams as seen in my code

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Answer 1

Benjamin Thompson 2022-2-24

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https://ww2.mathworks.cn/matlabcentral/answers/1657950-trying-to-produce-a-proper-pdf-cdf-and-histogram-from-data#answer_903970

You could use the Curve Fitting Tool if you have that toolbox, to find the best set of parameters for some standard type of distribution. If you are asking about the allfitdist function, there is another post on the Community site about allfitdist being replaced by fitmethis.