Hello,
The most part of the program works except that the following logical variable
does not get created although the second logical variable-based extraction
works.
I don't understand what I am doing wrong here.
state_pflt200 <- df$p_fatal <200
df[state_pflt200, c("state.name","p_fatal")]
I would appreciate receiving your help.
Thanks,
Pradip Muhuri
##### Below is the code that includes the reproducible example.
df <- data.frame (state.name=
c("Alabama","Alaska","Arizona","Arkansas","California","Colorado","Connecticut",
"Delaware","DC",
"Florida","Georgia","Hawaii","Idaho","Illinois","Indiana",
"Iowa","Kansas","Kentucky",
"Louisiana","Maine","Maryland","Massachusetts","Michigan",
"Minnesota","Mississippi","Missouri","Montana","Nebraska","Nevada","New
Hampshire",
"New Jersey","New Mexico","New York","North Carolina","North
Dakota","Ohio","Oklahoma",
"Oregon","Pennsylvania","Rhode Island","South
Carolina","South Dakota","Tennessee","Texas",
"Utah", "Vermont","Virginia","Washington","West
Virginia","Wisconsin","Wyoming"),
p_fatal = sample(200:500,51,replace=TRUE),
t_safety_score = sample(1:10,51,replace=TRUE)
)
options (width=120)
# The following logical variable does not get created - Don't understand what I
am doing wrong
state_pflt200 <- df$p_fatal <200
df[state_pflt200, c("state.name","p_fatal")]
# The following works
state_sslt5 <- df$t_safety_score <5
df[state_sslt5,c("state.name", "t_safety_score")]
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