Sacha Epskamp

Sacha Epskamp has asked 44 questions and find answers to 127 problems.

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About

I am a PhD-student at the University of Amsterdam, department of Psychological methods. For more information please see my website:

http://sachaepskamp.com

Sacha Epskamp questions

Vectorized sum over slices of an array
Split string on comma following a specific word
Vectorizing rep and seq in R
Packages missing in shiny-server
Uploading multiple interdependent packages to CRAN
Writing an R package that is different per architecture
Evaluate expressions in environments in Rcpp
Dynamically increase size of list in Rcpp
R: Search google for a string and return number of hits
Problem with loading compiled c code in R x64 using dyn.load

Sacha Epskamp answers

Selecting the first nth rows by group with number of rows varied
Is there a way to store a large number precisely in R?
Get rows which do not contain 0
Find largest 5 value less than 1, lowest 5 values
How do I plot more than one series in the same R scatterplot?
Unexpectedly transposed flipped output from R "image" function
Extracting hashtags in several tweets using R
Creating a set of sequences with decreasing length in R
Recode based on TRUE or FALSE in another variable
Shaded area under two curves using R