dropna

[waweruk2001]

Hi
its me again,
i keep getting this message: ERROR: UndefVarError: dropna not defined..
this is the plot i am trying to draw;
using Plots

julia> plots.histogram(dropna(train[:ApplicantIncome]),bins=50, xlabel="ApplicantIncome",labels="frequency")
ERROR: UndefVarError: dropna not defined
Please assist

[bkamins]

There is no such function as dropna in DataFrames.jl (nor any package it exports, nor in Base; this is a function that I think was removed a long time ago).

There is a function skipmissing that is defined in Base. And probably this is what you want to use:

plots.histogram(skipmissing(train.ApplicantIncome),
                          bins=50, xlabel="ApplicantIncome", labels="frequency")

[waweruk2001]

thank you so much ... i am learning data science using julia at this site: https://www.analyticsvidhya.com/blog/2017/10/comprehensive-tutorial-learn-data-science-julia-from-scratch/
and i had copied this instruction directly from their site.
thank you very much for your help

[bkamins]

It is a very nice resource, but unfortunately it is significantly outdated (note that it uses Julia 0.6 which is long gone now).

In order to get an understanding how DataFrames.jl package works under its current version you can check out https://github.com/bkamins/Julia-DataFrames-Tutorial.