Stack Exchange

Victor K.

Mountain View, CA

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Top Questions
Top Answers
39
How to produce stacked bars within grouped barchart in R
stackoverflow.com

20
Transpose a List of Lists
stackoverflow.com

17
How can I run my shiny app without calling library(“shiny”) beforehand?
stackoverflow.com

12
Perform a semi-join with data.table
stackoverflow.com

11
How can I list all tech note pages?
mathematica.stackexchange.com

9
Convex hull ggplot using data.tables in R
stackoverflow.com

8
data.table NOT summarizing properly by two columns
stackoverflow.com

7
RestKit willMapData:
stackoverflow.com

6
How can I do an animated switch to UISplitView?
stackoverflow.com

6
Metaprogramming with ggplot2
stackoverflow.com

6
Can a developer make an app that can be controlled with Siri?
apple.stackexchange.com

6
Why subset returns only odd-numbered rows?
stackoverflow.com

6
Detecting patterns of black and white stones on a 2D board
mathematica.stackexchange.com

6
How to merge dataset rows conditionally?
mathematica.stackexchange.com

6
Derivative with prime for vector-valued function
mathematica.stackexchange.com

6
VertexContract and contraction of vertices of degree 2
mathematica.stackexchange.com

5
Ascending and descending in the context of the order of operations on Datasets
mathematica.stackexchange.com

5
What Exactly are Anonymous Files
stackoverflow.com

5
data.table and table unexpected behavior
stackoverflow.com

5
Can I still use xcdatamodel core data model relationships with Restkit?
stackoverflow.com

5
Summarize a data.table across multiple columns
stackoverflow.com

5
collapsing by groups and calculating n in data.frame using R
stackoverflow.com

5
Generating long binary lists fast?
mathematica.stackexchange.com