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agstudy has asked 32 questions and find answers to 670 problems.

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CTO - data scientist : beatyourbill

I am the author of ggPMX R package and R sqlserver package

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agstudy questions

create a filter expression (i) dynamically in data.table
Get minimal shared part between elements of string's vector
Change the position of the ticks in ggplot2 (inside the plot) [duplicate]
Remove duplicated 2 columns permutations
Package Compilation fails when package name contain a "dot" and Rcpp function
data.table::merge How to avoid encoding warnings with merge?
How can I get the same plot without the intermediate step of the amount aggregation?
python requests post query fails:cookies?
Improve performance of data.table date+time pasting?
mix variables/results between chunks in knitr defined in different languages?

agstudy answers

Plotting different types of bar graph ggplot
Subsetting while summarizing data with ddply
How can I fill under a line that I plotted with type='s'
Linear discriminant analysis plot
Replace a value in a column matching a particular pattern in R
R: find if number is within range in a character string
why is r/sqlite requiring a primary key?
reading data frame stored in HDF5
Include a text representation of an object (like dput) in a function call for reproducible research
Converting a binary matrix into groups