Aug 122007
This is my function for tidying up R code:
Downdload the file hereActually it’s quite easy, though I didn’t know it before. When R was upgraded from 2.4.1 to 2.5.0, the function source() was also modified. In the past I used to make use of source(my_source_file, echo = TRUE, prompt = "") to “tidy up” my code because it’s not convenient for me to type every space between operators, what’s more, I have no fixed rules to break a line or make a proper indent. Thus I need a function to automatically “tidy up” my code.
After I’ve read the source code of the function source(), I quickly found that the most critical function is parse(), which can turn your code file into neat expressions, and the rest work is just to extract substrings.
tidy.source = function(file = choose.files()) {
exprs = parse(file)
for (i in 1:length(exprs)) {
dep = paste(deparse(exprs[i]), collapse = "\n")
dep = substring(dep, 12, nchar(dep) - 1)
cat(dep, "\n")
}
}
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5 Responses to “Tidy up your R code”
Comments (5)
Hello
i want to learn from you in a more direct and comvenient way .
is that possible
Sure! But I prefer to answering your questions in COS forum — that's direct enough.
sometimes it keeps me waiting for too long , and render the answer almost useless,for i have figoured out by myself.
Then it's even better for you to solve your problems by yourself.