Convert R code into Python code using rpy2

Question

I am new to R and actually, I knew nothing about R syntax. So, I found the rpy2 package(version 2.6.1) and trying to make use of the R regression fitting function for data analysis. However, I failed to extract the regression coefficients using rpy2. If anyone can help to tell how to pull out the regression equation coefficients, like R^2, P etc., Really thanks a lot.

I found out a R code to achieve this however, I cannot convert it to python code currently. The R code I have found is shown following:

ggplotRegression <- function (fit) {

require(ggplot2)

ggplot(fit$model, aes_string(x = names(fit$model)[2], y = names(fit$model)[1])) + 
  geom_point() +
  stat_smooth(method = "lm", col = "red") +
  labs(title = paste("Adj R2 = ",signif(summary(fit)$adj.r.squared, 5),
                     "Intercept =",signif(fit$coef[[1]],5 ),
                     " Slope =",signif(fit$coef[[2]], 5),
                     " P =",signif(summary(fit)$coef[2,4], 5)))
}

Answer 1

from rpy2.robjects import r

ggplotRegression = r("""
    function (fit) {

        require(ggplot2)

        ggplot(fit$model,
               aes_string(x = names(fit$model)[2],
                          y = names(fit$model)[1])) + 
            geom_point() +
            stat_smooth(method = "lm", col = "red") +
            labs(title = paste("Adj R2 = ",
                               signif(summary(fit)$adj.r.squared, 5),
                               "Intercept =",
                               signif(fit$coef[[1]],5 ),
                               " Slope =",signif(fit$coef[[2]], 5),
                               " P =",signif(summary(fit)$coef[2,4],         
                               5)))
    }""")

With this you can call the function ggplotRegression in your Python code.