STATISTICS Archives

Useful R codes

By sunny.bak February 6, 2024R, STATISTICS

How to get min and max value and the associated year that min and max values occurred previous <- dfile %>%filter(YearLabel == "Previous") %>%group_by(MonthName) %>%summarize(min_extent = min(extent_mil),max_extent = max(extent_mil),year_min =…

Defensive programming Error Handling in R

By sunny.bak December 5, 2023SOFTWARE, STATISTICS

"Fail fast!" principles to inform users early with information to debug. Be strict about what you accept. Check the input variable type and use stopifnot() or if and stop() Avoid…

R data wrangling

By sunny.bak November 16, 2023SOFTWARE, STATISTICS

This code snippet has nice examples of data wrangling From https://www.jumpingrivers.com/blog/r-d3-intro-r2d3/ scoobydoo = tuesdata$scoobydoo # wrangling data into nice shape monsters_caught = scoobydoo %>% select(date_aired, starts_with("caught")) %>% mutate(across(starts_with("caught"), ~ as.logical(.)))…

Kaggle Course – geospatial analysis summary

By sunny.bak January 26, 2022SOFTWARE, STATISTICS

Source: https://www.kaggle.com/learn/geospatial-analysis, This is the code summary note for the Kaggle geospatial analysis geopandas frame has a geometry column that shows either a point/line/polygon Part 1: Your first map source:…