WorstAccuracy: 'WorstAccuracy' Asks for a dataframe, a vector of collumn...

In cleanerR: How to Handle your Missing Data

Description

WorstAccuracy Asks for a dataframe, a vector of collumn indices and the goal collumn and returns the minimum possible value of accuracy of filling missing values

Usage

WorstAccuracy(df, VECTORS, goal)

Arguments

df	A dataframe that you intend to fill missing values, warning this dataframe shall contain no missing values so the user must drop the lines it happens
VECTORS	The collumns you wish to use to predict the missing values
goal	The collum with the missing values you wish to fill

Examples

#The Worst accuracy function tells its user the worst case accuracy possiblle.
#Code with two ## is working code but takes longer than 5 seconds
#Given a set and a goal to predict it supposes the following.
#All missing values are contained in the possible values with highest uncertainty.
#Lets first Consider the iris dataset
#It has the following parameters
print(names(iris))
#As we can see the 5 collumn is species
#Lets use Sepal.Length to predict Species and see Worst accuracy
print(WorstAccuracy(iris,1,5))
#Now lets use both sepal parameters
print(WorstAccuracy(iris,1:2,5))
#And when using a Petal parameter as well
##print(WorstAccuracy(iris,1:3,5))
#We can see that iris even in the worst case scenario species can be defined by these 3
#Now lets take a look at the mtcars dataset
##print(names(mtcars))
#Predicting gear using mpg
##print(WorstAccuracy(mtcars,1,10))
#But if we try to predict mpg using gear
##print(WorstAccuracy(mtcars,10,1))
#So using the Worst accuracy function we can know whats the worst case accuracy
#If the user requires he can also predict more than 1 goal for example
##print(WorstAccuracy(mtcars,c(1,3,5),c(10,11)))
#In this case we want to use mpg,disp,drat to predict a pair gear,carb
#To check the confidence of predicted values the user should use all three accuracy functions

cleanerR documentation built on May 2, 2019, 5:51 a.m.