Questions tagged [na.rm]
48 questions
1
vote
1 answer
NA value in mean?
Whenever I use
df %>% remove_empty(c("rows", "cols")) and then take mean of df using
df %>%
summarise(mean= mean(value),
sd= sd(value),
n = length(value))
I get mean= NA sd=NA n= 2000
However, when I use this…
Drake
- 47
- 4
1
vote
2 answers
Using summarize across with multiple functions when there are missing values
If I want to get the mean and sum of all the numeric columns using the mtcars data set, I would use following codes:
group_by(gear) %>%
summarise(across(where(is.numeric), list(mean = mean, sum = sum)))
But if I have missing values in some of…
Anup
- 239
- 2
- 11
1
vote
1 answer
`na.rm` is not removing NAs
Unfortunately, na.rm did not remove my NAs and I do not get the wanted result.
Here is what I have done:
First, I have recoded a column in R to get rid of unnecessary values for my project (and herein probably lies the issue)
ESS.subset$stfdem.rc <-…
user15174990
1
vote
0 answers
Can't get na.rm=TRUE to work for function
I am practicing writing functions and testing them. I have written the following functions but when I try to specify na.rm=TRUE my NA's are not being removed.
my.mean <- function(x, na.rm) {
stopifnot(is.numeric(x))
answer <- sum(x)/length(x)
…
snowy
- 17
- 2
1
vote
2 answers
Saving na.rm=TRUE for each function in dplyr
I am using dplyr summarise function. My data contain NAs so I need to include na.rm=TRUE for each call. for example:
group <- rep(c('a', 'b'), 3)
value <- c(1:4, NA, NA)
df = data.frame(group, value)
library(dplyr)
group_by(df, group) %>%…
Rtist
- 3,825
- 2
- 31
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1
vote
1 answer
na.rm and is.na give different answers
I've just come across a simple problem but I don't understand what's going on. I'm using R to remove NA values and calculate simple summary statistics, but is.na and na.rm are giving me different answers.
If I have a vector
> test<-c(NA, NA,NA,…
James Robinson
- 21
- 1
- 3
1
vote
1 answer
na.rm and conversion related warnings
Today I tried to finish my last R-study-exercises, but I failed. I`m not allowed to you show the precise instructions of my academic, but you may can help me with the warnings I get after sourcing. What do they mean? What doesn't fit?
I know, this…
user1923407
0
votes
0 answers
na.rm while using 'summarize'
While studying tidyverse, I found something cannot understand.
The missing data should be excluded with using na.rm = TRUE , so that calculating 'mean' will return a particular value.
However, some gropus reveal NaN instead of a number.
In library…
함성권
- 1
0
votes
0 answers
na.rm for a Linear Regression Model
I'm trying to run a linear regression model in R and I want to use na.rm to remove all my missing data. Is it possible to use na.rm here? If so where in the function do I put it? If not, what argument should I use instead?
My dataset is called dta…
0
votes
1 answer
adding two variables which has NA present
lets say data is 'ab':
a <- c(1,2,3,NA,5,NA)
b <- c(5,NA,4,NA,NA,6)
ab <-c(a,b)
I would like to have new variable which is sum of the two but keeping NA's as follows:
desired output:
ab$c <-(6,2,7,NA,5,6)
so addition of number + NA should equal…
nnet
- 39
- 4
0
votes
0 answers
using rollapply function from zoo package in R with na.rm argument
I would like to use the rollapply function from the zoo package in R to calculate a moving IQR, but this fails when missing data (NA's) are reached in my data series.
data_series <- c(4,7,4,7,3,6,5,8,5,NA,9,0,5,8,1,3,6,5)
roll_iqr <-…
user8229029
- 883
- 9
- 21
0
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0 answers
How to debug R code, the issue starts with object 'na.rm' not found; Error in unique(x) : object 'x' not found
Here is my homework:
In a first step, describe the dataset as well as the variables contained within it. Use descriptive measures and figures to do this. Then, compare Y T =1 to Y T =0 in a second step. Use an appropriate figure to visualize the…
0
votes
1 answer
R ggplot- na.rm is not removing the record
I am not sure why "na.rm=TRUE" in ggplot() and geom_col() don't remove the missing. Here is the input file (file name in the code is dat.csv…
user19642384
- 45
- 5
0
votes
1 answer
Difftime in R with missing times: how to add 'na.rm=TRUE'?
I would like to use difftime() to extract the difference between two date/time variables which are as.posixct. But sometimes one (or both) of the values are missing (NA), just like below.
Start time Antibiotic time
2016-06-28 08:36:00 …
Yvonne
- 21
- 3
0
votes
1 answer
DescTools :: AUC() trapezoid returns completely different results for na.rm = T and F in a dataset without NA
I have a dataset (alldata) with a time variable for X in hours (Time) and a numeric measurement for Y (Value) for a number of patients with a certain PID (allPID = vector with all PIDs).
For the first 24 hours, I want to calculate the area under the…
Denise
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