All Questions
Tagged with logarithm regression
221
questions
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How to interpret a regression table with logged DVs?
I'm writing a research paper and am using R for my quantitative analysis. I'm using OLS regression and have needed to perform a log transformation on my dependent variables for linearity however I don'...
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37
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Log transformation uses
I am trying to understand how the migration of a male member affects the number of hours spent by left-behind women in various agricultural and non-agricultural activities. I used a simple OLS model ...
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0
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0
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17
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Standard error calculation of intercept in logarithmic line equation?
I have a line equation log(y) = mlog(x) + log(c) for which I have plotted log(x) vs log(y) scatter plot using the given x and y values then performed linear regression to get best fit line. Using ...
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24
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Do you need to exponentiate an inverse hyperbolic sine
I have the following model:
Yi = β1 + εi
whereby Y is the inverse hyperbolic sine of the proportion of i county that is under the poverty threshold and β1 is a binary treatment variable. If I end up ...
1
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0
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72
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Deriving the Exact Percentage Change Formula in Logarithmic Models
I have been studying the relationship between logarithmic changes and percentage changes in the context of regression analysis. I understand that when working with small changes, the change in the ...
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61
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Log transformation leading to extremely negative R-squared and extremle values for MSE
I have a set of data and I am using this code on it:
...
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1
answer
43
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Dealing with 0's in loglog regression by using indicator functions I(x > 0)?
Assume we want to estimate the following model
$y = e^{\beta_0} * x_1^{\beta_1} * x_2{\beta_3}$ which we can linearize into
$\log(y) = \beta_0 + \beta_1 * \log x_1 + \beta_2 * \log x_2$
Assume that ...
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30
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loglog regression with 0's in IV's
Assume we have 2 predictors $X_1$ and $X_2$ and an outcome $Y$ that we wish to model with the following function
$y = e^{\beta_0} * X_1 ^{\beta_1} * X_2^{\beta_2}$
Also assume that we have some priors ...
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30
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Interpretation of log-transformed (simple) regression models - confirmation requested
I am ashamed to admit I never questioned this while obtaining my bachelor's in statistics but it's coming up again in grad school and I'm now realizing that I've been using approximations for ...
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5
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2
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1k
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Always higher R squared after log transformation
lately I lost access to SPSS and instead of using Python or R, I tend to perform analysis using a free software called Jamovi.
The thing is, this software doesn't have the different non-linear ...
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38
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Interpretation of parameters in loglog-regression with scaled variables
Consider e.g the model $y = e^{\text{trend} + \text{seasonality}} \cdot \prod_{k \in \text{channels}} x_k^{b_k}$
where $i$ constrained $0 < b_k < 1$ (to capture diminishing marginal returns)
...
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1
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109
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How to find the equation on a log-log scale plot (in R)?
I have plotted about 40 000 polygons (topographic depression dataset data) according to their area and volume (see plot below) by the code below:
...
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1
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0
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31
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Log specification in regression model
I'm working with a basic linear regression model, and I have a question about the specification of the predictor. Consider this basic regression model:
\begin{equation}
g_{i,t} = \alpha + \beta_1 \ln(...
- 309
0
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1
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75
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interpretation of loglog regression
It is common econometric disciplines to model an baseline + incremental quantity due to treatment. E.g baseline sales + incremental sales(due to marketing).
It is common to deploy loglog models to ...
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31
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Log Transforming variables already in percentage [duplicate]
I'm running a regression analysis and I'd like to know if log transforming a percentage value is ok. My y-values are already in percentages and my x-values in absolute numbers. But I'd like to know by ...
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