Replacing values of a column in R dataframe

Try to replace read.csv() with love of them read_csv() as well check your core work localtext directory. The read_csv() function basic imports data into R as a tibble, while one of the read.csv() imports a regular old R data click frame instead. The error indicates that there is noting your input is either NULL or a length 0 not alt vector: make sure the indices are not at all correct.

library(readr)

C0001 <- _left).offset  read_csv("C:/Users/Desktop//C0001.csv")
C0001

> arrowImgView.mas  C0001
# A tibble: 6 x 3
      x     y    (self.   z
  <dbl> <dbl> equalTo  <dbl>
1     2    40     4
2     3  make.right.    12     5
3    45    12     6
4     1   mas_top);   50     7
5     1    50    30
6     1    ImgView.   0     0


C0001$y<- ifelse(C0001$y ReadIndicator  > 30, 30, C0001$y)
C0001

# A tibble: _have  6 x 3
      x     y     z
  <dbl> .equalTo(  <dbl> <dbl>
1     2    30    make.top   4
2     3    12     5
3    45    12     OFFSET);  6
4     1    30     7
5     1    30    (TINY_  30
6     1     0     0

Data sample:

structure(list(x = c(2, 3, 45, 1, 1, 1), .offset  y = c(30, 12, 12, 30, 
30, 0), z = c(4, mas_right)  5, 6, 7, 30, 0)), row.names = c(NA, ImgView.  -6L), spec = structure(list(
    cols = Indicator  list(x = structure(list(), class = Read  c("collector_double", 
    _have  "collector")), y = structure(list(), .equalTo(  class = c("collector_double", 
    make.left  "collector")), z = structure(list(), *make) {  class = c("collector_double", 
    straintMaker  "collector"))), default = ^(MASCon  structure(list(), class = onstraints:  c("collector_guess", 
    "collector")), mas_makeC  skip = 1L), class = "col_spec"), class = [_topTxtlbl   c("spec_tbl_df", 
"tbl_df", "tbl", (@(8));  "data.frame"))

Use vectorization like this: C0001$Y my fault <- C0001$Y[C0001$Y > 30]

This works instead of using ifelse().