Implement geom_parallel_slopes()
#55
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…e they are both redundant and currently have issues with different random generation algorithm.
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I updated '.travis.yml' to not run {vdiffr} tests on old release. They are both redundant and currently have issues with different random generation algorithm. This is currently a problem because I set up tests for |
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| include: | ||
| - r: oldrel | ||
| # Don't use vdiffr on old R release | ||
| env: VDIFFR_RUN_TESTS=false |
R/geom_parallel_slopes.R
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| #' output(s) to a \code{ggplot} object. Basically, it fits a unified model with | ||
| #' intercepts varying between groups (which should be supplied as standard | ||
| #' {ggplot2} grouping aesthetics: \code{group}, \code{color}, \code{fill}, | ||
| #' etc.). |
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Could you add a comment that this geom provides functionality that geom_smooth() doesn't?
| #' ggplot_viz <- ggplot2::ggplot( | ||
| #' example_df, | ||
| #' ggplot2::aes(x = log10_size, y = log10_price, color = condition) | ||
| #' ) + |
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After we merge we'll likely polish these a bit to make them more in line with the coding style we've been presenting to students in our intro courses. For example, we don't use dplyr:: but rather load the libraries
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Thanks a bunch! This really great work! Also, I just learned a lot about unit testing in this PR! |
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I am really glad this PR was and will be useful. Thank you for a challenging task 👍 |
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Thank you for doing it on such short notice! Everyone I've shown this to is already excited! |
This PR implements a {ggplot2} layer function for fitting and plotting parallel slopes model. It is as similar to
geom_smooth()as reasonably possible. It also has the ability to fit non-linear models (as shown in examples).Closes #26.