R data.frame with 0 values -
my pos_tat data frame contains 7 rows last 1 appears when summary because value 0.
summary(pos_tat) delayed$position.type delayed$tat jf :1 s20 :1 s40 :1 s60 :1 specials :1 s70 :1 14-19 :0 pos_tat delayed$position.type delayed$tat 1 jf 45.10965 2 s20 44.37831 3 s40 44.18750 4 s60 45.40698 5 specials 43.30079 6 s70 42.44444
that poses problem if want add column count example tells me there's different number of rows 6, 7.
i've spent hours looking problem can't find answer. thank you.
this possible when there unused levels factor
columns in dataset. either convert column character
or if need keep factor
class, use droplevels
or call factor
again.
df2 <- droplevels(pos_tat)
or
df2 <- transform(pos_tat, delayed$position.type= as.character(delayed$position.type))
the summary
give unused levels op showed
summary(pos_tat[1]) # delayed$position.type # jf :1 # s20 :1 # s40 :1 # s60 :1 # specials:1 # s70 :1 # 14-19 :0
data
pos_tat <- structure(list(`delayed$position.type` = structure(1:6, .label = c("jf", "s20", "s40", "s60", "specials", "s70", "14-19"), class = "factor"), delayed.tat = c(45.10965, 44.37831, 44.1875, 45.40698, 43.30079, 42.44444)), .names = c("delayed$position.type", "delayed.tat" ), row.names = c("1", "2", "3", "4", "5", "6"), class = "data.frame")
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