？ How To Calculate Mean In R (Data Structure)
I have a data structure in R like so:> tkr[[i, 4]] 81.3> tkr[[i - 1, 4]] 82.59> tkr[[i - 2, 4]] 80.69> tkr[[i - 3, 4]] 79.76> tkr[[i - 4, 4]] 81.19> tkr[[i - 5, 4]]
？ K means clustering of variable with multiple values
I have a sample data below that is from a large data set, where each participant is given multiple condition for scoring.Participant<-c("p1","p1","p2","p2","p3","p3")Condition<-c( "c1","c2","c1
？ How to pull points that are within a certain distance away in R?
I have a parameter space given by (x,y) with x values from 1:5 and y values from 1:8. Let's say my current point p is located at (2,5) (it is colored in red). My goal is to try to pull all the points
？ Aggregate / summarize multiple variables per group (i.e. sum, mean, etc)
From a data frame, is there a easy way to aggregate (i.e. sum) multiple variables simultaneously?Below are some sample data:require(lubridate)days = 365*2date = seq(as.Date("2000-01-01"), length = day
？ How to find the mean of a variable for every value of another variable?
I'm new here, so pardon such a basic question, but I just started R and I've been asked a question that's left me stumped:Using the pre-installed dataset in R, mtcars, I'm supposed to find the mean of
？ Mean of columns with ddply without considering 0 values
so I have a data frame with Dates and Values as columns.I found a code that calculates the mean of all Values with the same Date. MeanValues = ddply(df, .(Date), summarize, Values = mean(Values))Now m
？ How to average every 12 columns for each row in r
This question already has an answer here: apply a function over groups of columns 6 answers For each row r, app
？ means of vectors in dataframe by factor
I am trying to create a new dataframe that is a condensed version of a series of vectors. while my data is built something like mat <- matrix(1:18, 6) g <- c("a", "a", "b", "b", "c", "c")df <
？ Weighted Average in R using NA weights
a=c(1,2,NA,4) b=c(10,NA,30,40) weighted.mean(a,b,na.rm = T)The above code gives me NA as the answer, I think na.rm only ignores the NA values in vector a and not b. How can I ignore the NA in vector b
？ Is it possible to aggregate or summarize dataset in R with median?
I am trying to aggregate dataset in R with median.d <- aggregate(c(d$user_reported_percent, d$machine_percent), by = list(d$day), FUN=median, simplify = TRUE, drop = TRUE)But
？ Change Median Color geom_boxplot
This question already has an answer here: Change color median line ggplot geom_boxplot() 1 answer if you want t
？ Order column names in ascending order within dplyr chain
I have this data.frame:df <- structure(list(att_number = structure(1:3, .Label = c("0", "1", "2"), class = "factor"), `1` = structure(c(2L, 3L,