Publications by Jim
Tips for Rearranging Columns in R
The post Tips for Rearranging Columns in R appeared first on Data Science Tutorials Tips for Rearranging Columns in R, you might frequently want to reorder the columns in a data frame. The select() function from the dplyr package, fortunately, makes this simple to accomplish. library(dplyr) This tutorial shows several examples of how to use this...
2523 sym R (1055 sym/8 pcs)
How to Group and Summarize Data in R
The post How to Group and Summarize Data in R appeared first on Data Science Tutorials How to Group and Summarize Data in R?, Grouping and summarising data are two of the most frequent actions you’ll conduct in data analysis. How to add labels at the end of each line in ggplot2? (datasciencetut.com) Fortunately, you can easily organize and summ...
2689 sym R (1677 sym/9 pcs)
Find the Maximum Value by Group in R
The post Find the Maximum Value by Group in R appeared first on Data Science Tutorials Find the Maximum Value by Group in R, you may frequently want to determine the highest value for each group in a data frame. Fortunately, utilizing the dplyr package’s methods makes this task simple. Interactive 3d plot in R-Quick Guide – Data Science Tutor...
1973 sym R (1066 sym/7 pcs)
Replace NA with Zero in R
The post Replace NA with Zero in R appeared first on Data Science Tutorials Replace NA with Zero in R, Using the dplyr package in R, you can use the following syntax to replace all NA values with zero in a data frame. Substitute zero for any NA values. Create new variables from existing variables in R – Data Science Tutorials df <- df %>% repla...
3731 sym R (2804 sym/23 pcs)
How to Find Unmatched Records in R
The post How to Find Unmatched Records in R appeared first on Data Science Tutorials How to Find Unmatched Records in R?, To retrieve all rows in one data frame that do not have matching values in another data frame, use R’s anti_join() function from the dplyr package. The basic syntax used by this function is as follows. How to Remove Columns ...
2223 sym R (824 sym/7 pcs)
How to Join Multiple Data Frames in R
The post How to Join Multiple Data Frames in R appeared first on Data Science Tutorials How to Join Multiple Data Frames in R?, you can find it useful to connect many data frames in R. Fortunately, the left join() function from the dplyr package makes this simple to accomplish. Crosstab calculation in R – Data Science Tutorials library(dplyr) C...
1506 sym R (975 sym/5 pcs)
How to Replace String in Column in R
The post How to Replace String in Column in R appeared first on Data Science Tutorials How to Replace String in Column in R? using the dplyr package’s functions, you can replace a string in a particular column in a data frame in the following ways. Data Science Statistics Jobs » Are you looking for Data Science Jobs? With the following data ...
2264 sym R (731 sym/6 pcs)
How to Calculate Relative Frequencies in R?
The post How to Calculate Relative Frequencies in R? appeared first on Data Science Tutorials How to Calculate Relative Frequencies in R?, The relative frequencies/proportions of values in one or more columns of a data frame can frequently be calculated in R. Data Science Statistics Jobs » Are you looking for Data Science Jobs? Fortunately, ut...
2231 sym R (1143 sym/5 pcs)
How to Create a Frequency Table by Group in R?
The post How to Create a Frequency Table by Group in R? appeared first on Data Science Tutorials How to Create a Frequency Table by Group in R?, To produce a frequency table by the group in R, use the dplyr package’s following functions. Reorder Boxplots in R with Examples » How to Create a Frequency Table by Group in R Let’s say we have the...
1808 sym R (855 sym/6 pcs)
Select the First Row by Group in R
The post Select the First Row by Group in R appeared first on Data Science Tutorials Select the First Row by Group in R, using the dplyr package in R, you might wish to choose the first row in each group frequently. To do this, use the simple syntax shown below. Select the First Row by Group in R Let’s say we have the dataset shown below in R, ...
1792 sym R (952 sym/6 pcs)