Mixing
merge multiple tables with different length
I want to merge 3 tables together in 1 dataframe. All the tables have a common column ID.
Table1 ID F/M Table2 ID US-citizen Table3 ID Job
10 F 10 1 10 0
11 F 15 1 14 1
12 F 16 1 16 1
13 F 17 0 17 1
14 M 20 1
15 F
16 M
17 M
18 F
19 F
20 M
My expected result:
Table1 ID F/M US-citizen Job
10 F 1 0
11 F NA NA
12 F NA NA
13 F NA NA
14 M NA 1
15 F 1 NA
16 M 1 1
17 M 0 1
18 F NA NA
19 F NA NA
20 M 1 NA
I tried using the merge function:
merge (table1,table2,table3, by= ID)
This will only work for two tables. Is there a way I can get it done for multiple tables?
merge rstudio
asked Nov 19 '18 at 12:27
Bob Outlook
394
add a comment |
I want to merge 3 tables together in 1 dataframe. All the tables have a common column ID.
Table1 ID F/M Table2 ID US-citizen Table3 ID Job
10 F 10 1 10 0
11 F 15 1 14 1
12 F 16 1 16 1
13 F 17 0 17 1
14 M 20 1
15 F
16 M
17 M
18 F
19 F
20 M
My expected result:
Table1 ID F/M US-citizen Job
10 F 1 0
11 F NA NA
12 F NA NA
13 F NA NA
14 M NA 1
15 F 1 NA
16 M 1 1
17 M 0 1
18 F NA NA
19 F NA NA
20 M 1 NA
I tried using the merge function:
merge (table1,table2,table3, by= ID)
This will only work for two tables. Is there a way I can get it done for multiple tables?
merge rstudio
asked Nov 19 '18 at 12:27
Bob Outlook
394
How about merge(merge(df1, df2, by='id', all=T), df3, by='id', all=T)? or use cbind method?
– kon_u
Nov 20 '18 at 10:37
add a comment |
I want to merge 3 tables together in 1 dataframe. All the tables have a common column ID.
Table1 ID F/M Table2 ID US-citizen Table3 ID Job
10 F 10 1 10 0
11 F 15 1 14 1
12 F 16 1 16 1
13 F 17 0 17 1
14 M 20 1
15 F
16 M
17 M
18 F
19 F
20 M
My expected result:
Table1 ID F/M US-citizen Job
10 F 1 0
11 F NA NA
12 F NA NA
13 F NA NA
14 M NA 1
15 F 1 NA
16 M 1 1
17 M 0 1
18 F NA NA
19 F NA NA
20 M 1 NA
I tried using the merge function:
merge (table1,table2,table3, by= ID)
This will only work for two tables. Is there a way I can get it done for multiple tables?
merge rstudio
asked Nov 19 '18 at 12:27
Bob Outlook
394
I want to merge 3 tables together in 1 dataframe. All the tables have a common column ID.
Table1 ID F/M Table2 ID US-citizen Table3 ID Job
10 F 10 1 10 0
11 F 15 1 14 1
12 F 16 1 16 1
13 F 17 0 17 1
14 M 20 1
15 F
16 M
17 M
18 F
19 F
20 M
My expected result:
Table1 ID F/M US-citizen Job
10 F 1 0
11 F NA NA
12 F NA NA
13 F NA NA
14 M NA 1
15 F 1 NA
16 M 1 1
17 M 0 1
18 F NA NA
19 F NA NA
20 M 1 NA
I tried using the merge function:
merge (table1,table2,table3, by= ID)
This will only work for two tables. Is there a way I can get it done for multiple tables?
merge rstudio
merge rstudio
asked Nov 19 '18 at 12:27
Bob Outlook
394
asked Nov 19 '18 at 12:27
Bob Outlook
394
asked Nov 19 '18 at 12:27
Bob Outlook
394
asked Nov 19 '18 at 12:27
Bob Outlook
394
asked Nov 19 '18 at 12:27
Bob Outlook
394
394
How about merge(merge(df1, df2, by='id', all=T), df3, by='id', all=T)? or use cbind method?
– kon_u
Nov 20 '18 at 10:37
add a comment |
How about merge(merge(df1, df2, by='id', all=T), df3, by='id', all=T)? or use cbind method?
– kon_u
Nov 20 '18 at 10:37
How about merge(merge(df1, df2, by='id', all=T), df3, by='id', all=T)? or use cbind method?
– kon_u
Nov 20 '18 at 10:37
How about merge(merge(df1, df2, by='id', all=T), df3, by='id', all=T)? or use cbind method?
– kon_u
Nov 20 '18 at 10:37
add a comment |
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How about merge(merge(df1, df2, by='id', all=T), df3, by='id', all=T)? or use cbind method?
– kon_u
Nov 20 '18 at 10:37