I wrote a little utility function for exactly this reason, which I use with
long titles. You may want to add calls to par to adjust the upper margin if
you are using raw graphical functionality (plot et al) - but lattice adjusts
the upper margin automatically so you wouldn't need to add anything else.
PrettyString <- function(theString, maxLength, collapse = "\n")
{
words <- unlist(strsplit(theString, " "))
wordLengths <- unlist(lapply(strsplit(words, ""), length))
if(max(wordLengths) > maxLength)
stop("maxChar must be increased due to string length")
count = wordLengths[1]
results = vector()
currentLine = words[1]
for(i in 2:length(words))
{
if((count + wordLengths[i] + 1) > maxLength)
{
results = c(results, currentLine)
currentLine = words[i]
count = wordLengths[i]
}
else
{
currentLine = paste(currentLine, words[i])
count = count + wordLengths[i] + 1
}
}
if(length(currentLine))
results <- c(results, currentLine)
paste(results, collapse = collapse)
}
Knowing the R list, someone can probably reduce this function to 2 lines of
code.
Jim
Svempa wrote:
>
> I want to fit a fairly long main title for a plot, supposedly by changing
> row after a while. As for now it starts way outside the picture margin at
> the left and continues way out right passed the right margins.
>
>>plot(A,main="This is my really long title and it's so long that I can see
just about half of it.")
>
> Any suggestions? Shouldn't be that hard.
>
>
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