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Order data frame rows according to vector with specific order
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Try match:
df <- data.frame(name=letters[1:4], value=c(rep(TRUE, 2), rep(FALSE, 2)))
target <- c("b", "c", "a", "d")
df[match(target, df$name),]
name value
2 b TRUE
3 c FALSE
1 a TRUE
4 d FALSE
It will work as long as your target contains exact...
How to pass JVM options from bootRun
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108
Original Answer (using Gradle 1.12 and Spring Boot 1.0.x):
The bootRun task of the Spring Boo...
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
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217
I had this issue and the fix was to make sure in tnsnames.ora the SERVICE_NAME is a valid servi...
Why does the C# compiler go mad on this nested LINQ query?
... machine) and very long time to compile (actually I get IO exception after 10 minutes).
1 Answer
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Java lib or app to convert CSV to XML file? [closed]
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16 Answers
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CSS last-child selector: select last-element of specific class, not last child inside of parent?
I want to select #com19 ?
6 Answers
6
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How can I use a file in a command and redirect output to the same file without truncating it?
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14 Answers
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How to reverse a string in Go?
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In Go1 rune is a builtin type.
func Reverse(s string) string {
runes := []rune(s)
for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
runes[i], runes[j] = runes[j], runes[i]
}
return string(runes)
}
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How do I calculate the date six months from the current date using the datetime Python module?
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How to capitalize the first character of each word in a string
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51 Answers
51
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