Stack Exchange

Brian Diggs

Portland, Oregon

I am a biostatistician working in the Department of Surgery at Oregon Health and Science University in Portland, Oregon.

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Top Questions
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33
Why are these numbers not equal?
stackoverflow.com

26
R + ggplot : Time series with events
stackoverflow.com

16
ggplot2: Is there a fix for jagged, poor-quality text produced by geom_text()?
stackoverflow.com

14
Seeing if data is normally distributed in R
stackoverflow.com

13
Complexity of MD simulations
scicomp.stackexchange.com

12
Are there best/recommended practices to follow when renaming functions in a new version of a package?
stackoverflow.com

12
adding x and y axis labels in ggplot2
stackoverflow.com

12
ggplot 2 facet_grid “free_y” but forcing Y axis to be rounded to nearest whole number
stackoverflow.com

12
have plot points coloured on a spectrum in R
stackoverflow.com

11
multiple histograms with ggplot2 - position
stackoverflow.com

11
ggplot2 heatmaps: using different gradients for categories
stackoverflow.com

10
How do I increase the size of the points and the text with just one command in ggplot2?
stackoverflow.com

10
stop ggplot2 from dropping data points outside of axis limits?
stackoverflow.com

10
Add legend to ggplot2 line plot
stackoverflow.com

10
ggplot2: add color to boxplot - “Continuous value supplied to discrete scale” error
stackoverflow.com

10
Faceting by 2 factors in ggplot2
stackoverflow.com

9
Using ggplot2, can I insert a break in the axis?
stackoverflow.com

9
Can I aggregate a dataframe and retain string variables in R?
stackoverflow.com

9
Is there a way to limit vline lengths in ggplot2
stackoverflow.com

9
R “for i in” plot in sorted order
stackoverflow.com

9
How to get a reversed, log10 scale in ggplot2?
stackoverflow.com

8
Error In R: Missing Value where TRUE/FALSE needed
stackoverflow.com

8
How can I add a table to a graph?
stackoverflow.com

8
Method to extract stat_smooth line fit
stackoverflow.com

8
What is the best approach to use in R and why?
codereview.stackexchange.com

7
Slower ddply when .parallel=TRUE on Mac OS X Version 10.6.7
stackoverflow.com

7
ggplot2 - annotate text with superscript
stackoverflow.com

7
How do I select variables in an R dataframe whose names contain a particular string?
stackoverflow.com

7
Change column name by looking up
stackoverflow.com

7
What are Replacement Functions in R?
stackoverflow.com

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