nassimhddd

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nassimhddd has asked 7 questions and find answers to 30 problems.

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nassimhddd questions

Replace repeating character with another repeated character
Plot of a correlation matrix in R like in Excel example
Reading huge csv files into R with sqldf works but sqlite file takes twice the space it should and needs "vacuuming"
fast merge(..., all = TRUE) with data.table in R
Is there a package for object-relational mapping in R?

nassimhddd answers

Month-Year bar graph plot faceted and filled on year; with data input as date in char format
How to select the rows with maximum values in each group with dplyr? [duplicate]
Automatically resize rChart in shiny
conditionally remove elements in a vector
Reading huge csv files into R with sqldf works but sqlite file takes twice the space it should and needs "vacuuming"
Subset row and column at the same time
Can't install git2r nor devtools R packages on centOS 7.0 64 bit
Printing plots generated in a function using R Markdown in RStudio
How can I screenshot a website using R?
fast merge(..., all = TRUE) with data.table in R