Hi, I am doing a political science project on voting behavior and trying to make a regression.
Model_2<-glm(gop_positive~dem_angry, data= my_data_set, family="binomial")
summary(Model_2)
plot(gop_positive, dem_angry, main = "Model Graphed",
xlab = "Is There Anything the Respondent Likes About Trump?",
ylab = "How Often does Respondent Feel Angry Towards Clinton?",
pch = 19)
I do this and get a bar graph that is accurate and I'm going to use it, but i need to get a regression and it's not doing that.
With only two variables, both binary, an correlation analysis is more appropriate. The logistic regression model being used yields a log likelihood of observing gop_positive in the presence of dem_negative and its plot presentation is quite different from ordinary least squares regression. I have an explainer here.
I admit I'm not sure why you're getting a bar graph instead of a scatter plot. But the main thing is that you plot command doesn't reference the regression Model_2.
You might want to post your data with dput() if it isn't too large.
you are quoting aesthetics; which is to say; not referring to the columns in your dataset but to the literal strings you are putting; you can either use aes_string() instead of aes() , or remove the quote marks, or replace the quote marks with backticks
I changed it to this:
ggplot(data= my_data_set, aes_string(gop_positive,dem_angry)) +
geom_point() +
geom_smooth(formula= y~x) +
theme_minimal()+
labs(x="Is There Anything the Respondent Likes About Trump?",
y= "How Often does Respondent Feel Angry Towards Clinton?",
title= "Relationship A") +
theme(plot.title = element_text(hjust=0.5, size=15, face = 'bold'))
and got this
Error in geom_point():
! Problem while computing aesthetics. Error occurred in the 1st layer.
Caused by error in check_aesthetics():
! Aesthetics must be either length 1 or the same as the data (10) Fix the following mappings: x and y
Run rlang::last_error() to see where the error occurred.
I put the quotes
Error in geom_point():
! Problem while computing aesthetics. Error occurred in the 1st layer.
Caused by error in check_aesthetics():
! Aesthetics must be either length 1 or the same as the data (10) Fix the following mappings: x and y
Run rlang::last_error() to see where the error occurred.
To help us help you, could you please prepare a reproducible example (reprex) illustrating your issue? Please have a look at this guide, to see how to create one:
It would be good to follow @nirgrahamuk's (always) helpful advice about a reprex, etc. Remember that you can see all kinds of things that we can't see.
If the data set is large, then just post part of it.
Error occurred in the 1st layer.
Fix the following mappings: