R Error: Replacement has X Rows, Data has Y (2 Examples)
This tutorial explains how to handle the error message “replacement has X rows, data has Y” in the R programming language.
The tutorial consists of this information:
Let’s take a look at some R codes in action:
Constructing Example Data
The following data will be used as basement for this R programming language tutorial:
data <- data.frame(x1 = c(1, 1, 2, 3, 4), # Create example data x2 = "x") data # Print example data # x1 x2 # 1 1 x # 2 1 x # 3 2 x # 4 3 x # 5 4 x |
As you can see based on the previous output of the RStudio console, the example data has five rows and two columns.
Example 1: Reproduce the Error: Replacement has X Rows, Data has Y
The following R syntax illustrates how to replicate the error message “replacement has X rows, data has Y”.
Let’s assume that we want to create a new data frame variable based on the values of the variable x1. Then, we might try to use the which function as shown in the following R code:
data$x1_range[which(data$x1 <= 2)] <- "<= 2" # Try to create new variable # Error in `$<-.data.frame`(`*tmp*`, x1_range, value = c("<= 2", "<= 2", : # replacement has 3 rows, data has 5 |
Unfortunately, the previous R syntax resulted in the error “replacement has X rows, data has Y”. The reason for that is that we didn’t create the new variable first, before we assigned values to it.
Let me explain…
Example 2: Fix the Error: Replacement has X Rows, Data has Y
This section shows how to solve the problems with the error message “replacement has X rows, data has Y”.
In order to avoid this error, we first have to append a new column to our data frame that contains only NA values:
data$x1_range <- NA # Initialize empty variable first |
Now, we can apply exactly the same R code as we did in the previous example:
data$x1_range[which(data$x1 <= 2)] <- "<= 2" # Fill in values |
data # Print updated data frame # x1 x2 x1_range # 1 1 x <= 2 # 2 1 x <= 2 # 3 2 x <= 2 # 4 3 x <NA> # 5 4 x <NA> |
This time it worked! We have created a new column with conditional values.
Video, Further Resources & Summary
I have recently released a video tutorial on my YouTube channel, which illustrates the R codes of the present tutorial. You can find the video below:
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Furthermore, you could read the related articles of this homepage. I have released several articles already:
At this point you should know how to deal with the error message “replacement has X rows, data has Y” in the R programming language. If you have any further questions, let me know in the comments section.
I’m Joachim Schork. On this website, I provide statistics tutorials as well as code in Python and R programming.
18 Comments. Leave new
It doesn’t work, same error
Hey Toni,
Could you share your code? I can have a look.
Regards
Joachim
Hi Joachim,
I’ve just seen this webpage&your post. I’m new to R bibliometrix. That’s the code: Error: replacement has 0 rows, data has 399. I’d be glad if you can help.
Many thanx in advance
Hi Erkan,
Could you please share the code you have used? 🙂
Regards
Joachim
Hi Joachim,
I solved the problem, 🙂
Thanx&Regards
Erkan
Hey Erkan,
This is great to hear! Thanks for sharing 🙂
Regards
Joachim
Hey Jaochim,
Thanks for the video. I have been facing this error, and it doesnt seem to have gone away even after inititialising the variable. Please help? a bit urgent.
this is the code –
read_excel(path, col_names = TRUE)
path <- as.data.frame(path)
path$opinions <- NA
path$opinions <- str_c(path$A, path$B)
error – Error in `$<-.data.frame`(`*tmp*`, opinions, value = character(0)) :
replacement has 0 rows, data has 1
Hey Ananya,
Thanks for the kind words, glad you have liked the video!
Please look into this part of your code: str_c(path$A, path$B) It seems like it does not produce a valid output. Maybe you have misspelled the variable names?
Regards,
Joachim
Hi Joachim,
I am fairly new to R and struggling with this error, I don’t know how I would apply this solution to script. Could you please take a look? any help would be greatly appreciated, this is for my school assignment.
https://gadm.org/download_country.html
https://ec.europa.eu/eurostat/databrowser/view/demo_r_births/default/table?lang=en
x = c(“ggmap”, “rgdal”, “rgeos”, “maptools”,
“dplyr”, “tidyr”,”Rcpp”,”tmap”,”grid”,”png”, “readxl”,”sp”)
install.packages(x)
lapply(x, library , character.only = TRUE)
gadm <- readRDS("gadm36_DEU_2_sp.rds")
gadm@data$NAME_1
dev.off()
plot(gadm)
germany <- read_excel("Birth.xlsx")
gadm$NAME_1 %in% germany$GEO
germany = rename(germany, NAME_1 = GEO)
head(left_join(gadm@data , germany))
gadm@data = left_join(gadm@data, germany)
dev.off()
qtm(gadm , "2011")
Error in '$<- . data.frama'(*tmp*' , "geometry", value = list(list(list( : replacement has 403 rows, data has 493
Hey Ruma,
Thank you for the interesting question, and apologies for the delayed response, I just came back from vacation. Do you still need help with this?
Regards,
Joachim
Hi , I have some problms, as follows,
Error in `$<-.data.frame`(`*tmp*`, "OrderTPL", value = NA_character_)
Hey Sijie,
Could you share the code you have used?
Regards,
Joachim
hello Joachim.
I am fairly new to R and I need help, I want to plot multiple Netcdf files into one graph and I don’t know where to start.
Hey Laone,
Could you share the code you have used so far, and illustrate the structure of your data?
Regards,
Joachim
hello Joachim
can you help me ?
my codes are –
train_poly <- as.data.frame(model.matrix(formula, data = X_train ))
test_poly <- as.data.frame(model.matrix(formula, data = X_test ))
train_poly$charges <- y_train
test_poly$charges <- y_test
its showing – Show in New Window
Error in `$<-.data.frame`(`*tmp*`, charges, value = c(16884.924, 1725.5523, :
replacement has 935 rows, data has 0
Hey Sukrit,
It seems like one of your data frames doesn’t contain any values. What is returned when you apply this code?
Regards,
Joachim
Hi Joachim!
Is there a possibility to overwrite a certain column with the which-function and prevent this error?
e.g.:
df$X22test.p <- replace(df$X22test.p, which(X22test.p < 0), NA)
BR, Lisa
Hey Lisa,
Does the following code work for you?
Regards,
Joachim