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Append and replacing data in r
2019 Community Moderator ElectionReplacing values in multiple columns of a data frame in RDo modern R and/or Python libraries make SQL obsolete?What is the difference between data singular and data plural ?Replacing words by numbers in multiple columns of a data frame in RFind words related to high or low scoreBest masters degree in data science and engineering in EuropeWhat is difference between a Data Scientist and a Data Analyst?How can I sort a data frame by groups?Replacing column values in pandas with specific column with multiple database operation?How to apply curve fitting on both completed and active data?
$begingroup$
I am writing a few lines of codes to create a data table full of NAs but don't know how to append the data of results into the data table I created while replacing the position of NAs.
Here is my data table
games<-10
game_results<-as.data.frame(matrix(NA,games,3))
install.packages("data.table")
library(data.table)
setnames(game_results,c("V1","V2","V3"),c("winner","round","winnerscore"))
game_results
r data
asked Mar 27 at 8:24
Xingqi FeiXingqi Fei
11
$endgroup$
add a comment |
$begingroup$
I am writing a few lines of codes to create a data table full of NAs but don't know how to append the data of results into the data table I created while replacing the position of NAs.
Here is my data table
games<-10
game_results<-as.data.frame(matrix(NA,games,3))
install.packages("data.table")
library(data.table)
setnames(game_results,c("V1","V2","V3"),c("winner","round","winnerscore"))
game_results
r data
asked Mar 27 at 8:24
Xingqi FeiXingqi Fei
11
$endgroup$
add a comment |
$begingroup$
I am writing a few lines of codes to create a data table full of NAs but don't know how to append the data of results into the data table I created while replacing the position of NAs.
Here is my data table
games<-10
game_results<-as.data.frame(matrix(NA,games,3))
install.packages("data.table")
library(data.table)
setnames(game_results,c("V1","V2","V3"),c("winner","round","winnerscore"))
game_results
r data
asked Mar 27 at 8:24
Xingqi FeiXingqi Fei
11
$endgroup$
I am writing a few lines of codes to create a data table full of NAs but don't know how to append the data of results into the data table I created while replacing the position of NAs.
Here is my data table
games<-10
game_results<-as.data.frame(matrix(NA,games,3))
install.packages("data.table")
library(data.table)
setnames(game_results,c("V1","V2","V3"),c("winner","round","winnerscore"))
game_results
r data
r data
asked Mar 27 at 8:24
Xingqi FeiXingqi Fei
11
asked Mar 27 at 8:24
Xingqi FeiXingqi Fei
11
edited Mar 27 at 8:31
Xingqi Fei
asked Mar 27 at 8:24
Xingqi FeiXingqi Fei
11
asked Mar 27 at 8:24
Xingqi FeiXingqi Fei
11
asked Mar 27 at 8:24
Xingqi FeiXingqi Fei
11
11
add a comment |
add a comment |
1 Answer
1
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$begingroup$
You could change in this case with command
game_results$winner[1] <- "Dad"
But this copies the whole table, so i will recomend you to create an empty data in another way
game_results <- setNames(data.table(matrix(nrow = 10, ncol = 3)), c("winner","round","winnerscore"))
and assignment by reference in the way you prefer (hole column or specific cell), here instructions for both cases.
answered Mar 28 at 19:40
Danyl DenysenkoDanyl Denysenko
1
$endgroup$
add a comment |
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1 Answer
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active
oldest
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$begingroup$
You could change in this case with command
game_results$winner[1] <- "Dad"
But this copies the whole table, so i will recomend you to create an empty data in another way
game_results <- setNames(data.table(matrix(nrow = 10, ncol = 3)), c("winner","round","winnerscore"))
and assignment by reference in the way you prefer (hole column or specific cell), here instructions for both cases.
answered Mar 28 at 19:40
Danyl DenysenkoDanyl Denysenko
1
$endgroup$
add a comment |
$begingroup$
You could change in this case with command
game_results$winner[1] <- "Dad"
But this copies the whole table, so i will recomend you to create an empty data in another way
game_results <- setNames(data.table(matrix(nrow = 10, ncol = 3)), c("winner","round","winnerscore"))
and assignment by reference in the way you prefer (hole column or specific cell), here instructions for both cases.
answered Mar 28 at 19:40
Danyl DenysenkoDanyl Denysenko
1
$endgroup$
add a comment |
$begingroup$
You could change in this case with command
game_results$winner[1] <- "Dad"
But this copies the whole table, so i will recomend you to create an empty data in another way
game_results <- setNames(data.table(matrix(nrow = 10, ncol = 3)), c("winner","round","winnerscore"))
and assignment by reference in the way you prefer (hole column or specific cell), here instructions for both cases.
answered Mar 28 at 19:40
Danyl DenysenkoDanyl Denysenko
1
$endgroup$
You could change in this case with command
game_results$winner[1] <- "Dad"
But this copies the whole table, so i will recomend you to create an empty data in another way
game_results <- setNames(data.table(matrix(nrow = 10, ncol = 3)), c("winner","round","winnerscore"))
and assignment by reference in the way you prefer (hole column or specific cell), here instructions for both cases.
answered Mar 28 at 19:40
Danyl DenysenkoDanyl Denysenko
1
answered Mar 28 at 19:40
Danyl DenysenkoDanyl Denysenko
1
answered Mar 28 at 19:40
Danyl DenysenkoDanyl Denysenko
1
answered Mar 28 at 19:40
Danyl DenysenkoDanyl Denysenko
1
1
add a comment |
add a comment |
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