Stack Exchange

Matthew Plourde

Philadelphia

Age: 27

programmer working in the field of water resource modeling, using mostly Python, R, and TSQL

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Top Questions
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Top Answers
18
Why is my recursive function so slow in R?
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12
What is the opposite of %in% in r
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10
Adding table within the plotting region of a ggplot in r
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10
list names as vector in list
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9
Splitting a string by space except when contained within quotes
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9
descending sort in data.table and speed
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9
How to skip an error in a loop
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8
How to find where an R error occurred?
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7
Why is `vapply` safer than `sapply`?
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7
Sort rows in data.table (R)
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7
Remove text box inserted into plot using locator in r
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7
How to append a plot to an existing pdf file
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7
Remove consecutive duplicates from dataframe
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7
R: merging a lot of data.frames
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7
Missing Rows from Dataset in R
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6
R extract time components from semi-standard strings
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6
Add respective dataframes in list together in R
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6
elementwise combination of two lists in R
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6
How to search for equal variables in rows (in a smart way) and store according rows as subsets?
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6
What is the purpose of environments in R and when I need to use more than one?
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6
R Date format with months and days of two digits
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6
How can I repeat a data.frame?
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6
Creating an unique ID in R
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6
set.seed with R 2.15.2
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6
Remove duplicate observations based on set of rules
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6
Word for person willing to argue contradictory things depending on what suits him
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5
ggplot: relative frequencies of two groups
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5
find ordering in two R vector
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5
R incrementing by decimal value does not return expected value
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5
Compare two character vectors matching names
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