Posts by Jussara • 57 points
3 posts
-
1
votes1
answer236
viewsQ: r - average of one variable relative to the values of another variable in a data frame within each grouping
This question is after one posed by me recently. This is the link if you want to follow r - average of one variable relative to the values of another variable in a data frame I have a dataframe with…
-
1
votes2
answers206
viewsQ: r - average of one variable relative to the values of another variable in a data frame and take NA values
I have a multi-column dataframe. How do I calculate the average of one variable based on the values of another variable? I have the frequency of several species found in 4 campaigns and I want to…
-
3
votes2
answers1338
viewsQ: r - sum of a variable relative to the values of another variable in a data frame
I have a multi-column dataframe. How do I add the values of a column within an element of another variable? I want to do this to summarize the data of each species within each campaign. I tried to…