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For each row in an R dataframe
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105
You can try this, using apply() function
> d
name plate value1 value2
1 A P1 ...
What is “android.R.layout.simple_list_item_1”?
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edited Jul 3 '13 at 3:21
Aaron Klap
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answered Sep 8 '10 a...
Formatting Numbers by padding with leading zeros in SQL Server
We have an old SQL table that was used by SQL Server 2000 for close to 10 years.
13 Answers
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What does %~d0 mean in a Windows batch file?
...arguments used to invoke the file: %0 is the path to the bat-file itself, %1 is the first argument after, %2 is the second and so on.
Since the arguments are often file paths, there is some additional syntax to extract parts of the path. ~d is drive, ~p is the path (without drive), ~n is the file n...
C Macro definition to determine big endian or little endian machine?
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19 Answers
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How to delete from select in MySQL?
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210
SELECT (sub)queries return result sets. So you need to use IN, not = in your WHERE clause.
Add...
Split comma-separated strings in a column into separate rows
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This old question frequently is being used as dupe target (tagged with r-faq). As of today, it h...
How to get first element in a list of tuples?
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Is there an expression for an infinite generator?
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for x in iter(int, 1): pass
Two-argument iter = zero-argument callable + sentinel value
int...
Only read selected columns
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Say the data are in file data.txt, you can use the colClasses argument of read.table() to skip...