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Questions tagged [olsmultiplelinearregression]

29 questions
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How to stop this while loop from looping infinitely?

Please help me figure how to stop the infinite loop. This is a code for backward elimination. Im trying to put this code in my homework because if I do backward elimination manually it will waste a lot of my time. The dataset has 78 independent…
ERICA JOBELLE AYUDAN
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Changing the assigned dummy variable classification when using drop_first

I generated the following dummy variables for the data to be used for a linear regression model. data = df.copy() #make a copy of our cleaned dataset called data X = data[['age', 'blood_pressure', 'specific_gravity', 'albumin', 'sugar', …
ActuS98
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What are possible reasons for a p-value of 0.00 in statsmodels' multiple regression test?

I am doing a multiple regression test with statsmodels. I am very confident that there is a relationship in the data, both from what I already know about this data through other sources and from plotting, but when I do a multiple regression test…
C4X
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How should I interpret to negative constant in multiple linear regression in python?

I have a dataset. A part of the dataset is as shown below: sales_date net_sales_my_firm net_sales_others pro_unit_my_firm pro_unit_others 1.02.2021 101089 710337 9869 67885 1.03.2021 104747 …
Rachel
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Error of "type 'float' has no len() when trying BackwardElimination algorithm in Python

I would like to know if someone could help me solving this issue I'm facing. First of all: I'm using Visual Studio Code. Pandas, matplotlib (that maybe is not even needed), statsmodels, numpy and sklearn were all installed with the code pip install…
Angelj107
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Create a loop in R to run all possible combinations of categorical variables(levels) in regression

I am trying to run different multiple linear regression models in R with my sales dataset containing over 1000 products and 250 retailers. I am interested in looking at the model coefficients for each product and retailer combination. I tried using…
asterisk21
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I() equivalent (used in R), what is the Python equivalent?

The I() function in R is used to create new predictor in Linear Regression, such as X^2 for example: lm.fit2=lm(medv∼lstat +I(lstat ^2)) A good explanation is given here (What does the capital letter "I" in R linear regression formula mean?). I'm…
user42
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Value error : Shapes not aligned in Multiple linear regression model

I am trying to build a linear model by using both Sklearn's linear regression and statsmodels.api. The approach is to drop variables whose p-values and VIF values are higher than the norm (p-value : 0.05, VIF : <5) bike_train columns are August,…
user10528004
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Linear Regression and Generating Data =+

I have been given a problem in Jupiter notebooks to code using python. This problem is about linear regression. It's as follows: 1: Linear Regression In this notebook we will generate data from a linear function: =+ and then solve for ̂ using…
ah123412312
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How to use statsmodels.api for fitting model using OSL

Below is the code from udemy course:- I tried all the solutions provided in stack overflow but nothing seems to work import numpy as np import matplotlib.pyplot as plt import pandas as pd dataset = pd.read_csv('50_Startups.csv') X =…
Soumitro
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How to interpret Linear regression assumptions of the data

I have a data set with 3719 observation with 9 features. In that I have performed multiple linear regression with selected features. I got the diagnostic plots like this: I have understood by plots that there is no linearity between dependent and…
Navya
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error while printing the predicted value in multiple linear regression

from sklearn import linear_model regr = linear_model.LinearRegression() x = np.asanyarray(train[['ENGINESIZE','CYLINDERS','FUELCONSUMPTION_COMB']]) y = np.asanyarray(train[['CO2EMISSIONS']]) regr.fit (x, y) # The coefficients print ('Coefficients:…
likith vishal
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NumberFormatException thrown as OLS concatenates variables

I am trying to run an OLS regression, the code works fine with an exception that it concatenates the variables into one. I have tried looking into what could be the problem but I've not been able to find the reason @Component public class AppRunner…
ken4ward
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Multiple linear Regression calculate coefficients Java

I am currently trying to perform an Multiple linear regression within my Java Project. I already tried many different classes like the OLSMultipleLinearRegression Class. But those classes don't return the parameters I need. For example these are the…
Bl0ss0m
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