string-concatenation

Related: Strings as variable references in R Possibly related: Concatenate expressions to subset a dataframe I've simplified the question per the comment request. Here goes with some example data. dat <- data.frame(num=1:10,sq=(1:10)^2,cu=(1:10)^3) set1 <- subset(dat,num>5) set2 <- subset(dat,num<=5) Now, I'd like to make a bubble plot from these. I have a more complicated data set with 3+ colors and complicated subsets, but I do something like this: symbols(set1$sq,set1$cu,circles=set1$num,bg="red") symbols(set2$sq,set2$cu,circles=set2$num,bg="blue",add=T) I'd like to do a for loop like this:

I am setting text using setText() by following way. prodNameView.setText("" + name); prodOriginalPriceView.setText("" + String.format(getString(R.string.string_product_rate_with_ruppe_sign), "" + new BigDecimal(price).setScale(2, RoundingMode.UP))); In that First one is simple use and Second one is setting text with formatting text. Android Studio is so much interesting, I used Menu Analyze -> Code Cleanup and i got suggestion on above two lines like. Do not concatenate text displayed with setText. Use resource string with placeholders. less... (Ctrl+F1) When calling TextView#setText: Never

I need to split long sentence into parts preserving whole words. Each part should have given maximum number of characters (including space, dots etc.). For example: int partLenght = 35; string sentence = "Silver badges are awarded for longer term goals. Silver badges are uncommon." Output: 1 part: "Silver badges are awarded for" 2 part: "longer term goals. Silver badges are" 3 part: "uncommon." Try this: static void Main(string[] args) { int partLength = 35; string sentence = "Silver badges are awarded for longer term goals. Silver badges are uncommon."; string[] words = sentence.Split(' ');

I have three columns in an sqlite table: Column1 Column2 Column3 A 1 1 A 1 2 A 12 2 C 13 2 B 11 2 I need to select Column1-Column2-Column3 (e.g. A-01-0001 ). I want to pad each column with a - I am a beginner with regards to SQLite, any help would be appreciated tofutim The || operator is "concatenate" - it joins together the two strings of its operands. From http://www.sqlite.org/lang_expr.html For padding, the seemingly-cheater way I've used is to start with your target string, say '0000', concatenate '0000423', then substr(result, -4, 4) for '0423'. Update: Looks like there is no native

In Python, the where and when of using string concatenation versus string substitution eludes me. As the string concatenation has seen large boosts in performance, is this (becoming more) a stylistic decision rather than a practical one? For a concrete example, how should one handle construction of flexible URIs: DOMAIN = 'http://stackoverflow.com' QUESTIONS = '/questions' def so_question_uri_sub(q_num): return "%s%s/%d" % (DOMAIN, QUESTIONS, q_num) def so_question_uri_cat(q_num): return DOMAIN + QUESTIONS + '/' + str(q_num) Edit: There have also been suggestions about joining a list of

Is there a C++ Standard Template Library class that provides efficient string concatenation functionality, similar to C#'s StringBuilder or Java's StringBuffer ? NOTE this answer has received some attention recently. I am not advocating this as a solution (it is a solution I have seen in the past, before the STL). It is an interesting approach and should only be applied over std::string or std::stringstream if after profiling your code you discover this makes an improvement. I normally use either std::string or std::stringstream . I have never had any problems with these. I would normally