dataframe - How to reshape data frame, header value to column value in R -

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i have dataset similar following structure

date        obj       obj b       obj c 12/12/2001      2       3            4 11/12/2001      5       7            6

and want reshape them following structure, panel plot in ggplot2

date        value       factor 12/12/2001      2       obj 11/12/2001      5       obj 12/12/2001      3       obj b 11/12/2001      7       obj b 12/12/2001      4       obj c 11/12/2001      6       obj c

is there easier way/package other subsetting data , rbind data 1 one? help

in base r, if values reshaped not factors, can use stack:

cbind(mydf[1], stack(mydf[-1])) #         date values  ind # 1 12/12/2001      2 obja # 2 11/12/2001      5 obja # 3 12/12/2001      3 objb # 4 11/12/2001      7 objb # 5 12/12/2001      4 objc # 6 11/12/2001      6 objc

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