denis

denis has asked 7 questions and find answers to 23 problems.

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About

Experimental physicist doing data management and statistics in health science

denis questions

ploting an ellipse in log plot with ggplot
fitting first order equation with nlme and lsoda
non linear regression with random effect and lsoda

denis answers

How to count the number of matched strings in R, when the string pattern to match is a column from another dataframe?
non linear regression with random effect and lsoda
Finding nearest value within a data.table
Regression in R using poly() function
Pivoting wide to long format and then nesting columns
Bind vectors across lists to single list of matrices
Don't drop dimensions when subseting 3-dimensional array
conditional sampling without replacement
How to group rows in a range and consider a 3rd column?
R: all possible combinations from a vector of elements with 2 possible conditions (+/-)