MKR

MKR has asked 0 questions and find answers to 53 problems.

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About

Love to design and develop software. Exploring new ways is my motivation! Developed top-notch software in c++, VC++, C#, SQL Server, JavaScript, HTML in my long career over a decade. Data science is my hobby and passion.

MKR questions

MKR answers

Calculating age of peak performance in R [duplicate]
Get number of days, months and weeks since Epoch in R
NAs introduced by coercion when no missing values in the data - R
expand a data frame in R
Search multiple columns for string
Using cummean with group_by and ignoring NAs
dplyr::filter() based on dplyr::lag() without losing first values
difference between n and n-2 row for each group
Column "rate" must be length 1 (a summary value), not 22906
R Mutate Column That Represents the Mean of Many Other Columns