Park

Park has asked 2 questions and find answers to 33 problems.

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Park questions

How to extract unique letters among word of consecutive letters?

Park answers

R: count times per column a condition is met and row names appear in a list
Formula error when running mixed logit model in R
Add country names to map in ggplot
Find the max of a group in one column then reference another column value in that row
How to calculate the Fisher information matrix in Gaussian Mixture model with R
Finding Mean Values in a Column by Intervals
Problem with 'stat_compare_means' when using the 'facet_wrap' function
Detect index based on a condition
Keep time zone information when converting POSIX object to string [duplicate]
Pivot wider and summarise whether level exists