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How to comment out a block of Python code in Vim
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Linux command (like cat) to read a specified quantity of characters
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head works too:
head -c 100 file # returns the first 100 bytes in the file
..will extract ...
How do I check that a number is float or integer?
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How do you run a command for each line of a file?
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Read a file line by line and execute commands: 4 answers
This is because there is not only 1 ...
Iterate a list with indexes in Python
...ar I've seen the function (or method) that takes a list, like this [3, 7, 19] and makes it into iterable list of tuples, like so: [(0,3), (1,7), (2,19)] to use it instead of:
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Creating an R dataframe row-by-row
...code in R.
If you can, allocate your entire data.frame up front:
N <- 1e4 # total number of rows to preallocate--possibly an overestimate
DF <- data.frame(num=rep(NA, N), txt=rep("", N), # as many cols as you need
stringsAsFactors=FALSE) # you don't know levels y...
How to get random value out of an array?
I have an array called $ran = array(1,2,3,4);
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It is more efficient to use if-return-return or if-else-return?
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Since the return statement terminates the execution of the current function, the two forms are e...
How to remove a field completely from a MongoDB document?
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How to tell which commit a tag points to in Git?
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19 Answers
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