Can anyone tell me how to define categorical variables (with more than two levels) while performing regression in Julia…? Thanks say my data is my_dataframe= DataFrame(class=[3,1,3,2,1,2,1],hist=[34,36,38,40,42,44,46], math=[32,65,98,78,45,12,92], scie=[45,98,56,23,12,45,95], espan= [98,65,45,75,…

Just do: using CategoricalArrays DataFrame(class=categorical([3,1,3,2,1,2,1]), ...) (Please use triple backquotes around code blocks so that they are rendered as such.)

Thanks, But when I perform the following, Pkg.add(“CategoricalArrays”) using CategoricalArrays using DataFrames my_dataframe=DataFrame(class=categorical([3,1,3,2,1,2,1]),civics=[34,36,38,40,42,44,46], maths=[32,65,98,78,45,12,92], science=[45,98,56,23,12,45,95], social= [98,65,45,75,62,35,76], …

``` code here ``` Use the backwards apostrophe “tick” three times to begin and end your block of code.

[image] lukaebby: And I am sorry that I did not understand what you meant by this “(Please use triple backquotes around code blocks so that they are rendered as such.)” [image] PSA: how to quote code with backticks Meta Discussion This is a short post on…

I can reproduce the error: using CategoricalArrays, DataFrames a = categorical([3,1,3,2,1,2,1]) DataFrame(a = a, b = 1:7) gives ERROR: MethodError: no method matching upgrade_vector(::CategoricalArrays.CategoricalArray{Int64,1,UInt32}) Closest candidates are: upgrade_vector(::BitArray{1}) at /U…

Thanks for trying them. But Pkg.status.(["DataFrames","CategoricalArrays","GLM"]) DataFrames 0.10.1 CategoricalArrays 0.1.6 GLM 0.8.1 And GLM and DataFrames work perfectly together.!

I don’t understand, I just said that I can indeed reproduce.

Yes, you need the new DataFrames (v0.11).

Sorry to open this again but Iam not able to use a simple logistic regression with glm: a = categorical([3,1,3,2,1,2,1]) df = DataFrame(a = a, b = 1:7) glm(@formula(a ~ b), df, Binomial(), LogitLink()) gives: MethodError: no method matching zero(::Type{CategoricalValue{Int64,UInt32}}) Closest can…

Regression using Categorical variables

General Usage

Tamas_Papp December 5, 2017, 1:34pm 6

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Regression using Categorical variables

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