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Set margin size when converting from Markdown to PDF with pandoc
...d to knit it with knitr into an HTML and .md file. Next, I used pandoc to convert the .md file into a PDF file (I get an error if I try and convert from the .html file). However, the PDF that is produced have massive margins (like this http://johnmacfarlane.net/pandoc/demo/example13.pdf ). How c...
How do I Convert DateTime.now to UTC in Ruby?
If I have d = DateTime.now , how do I convert 'd' into UTC (with the appropriate date)?
7 Answers
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How can I backup a remote SQL Server database to a local drive?
... reason you need columns like object_id, create_data, modify date AS IS in sys.tables just remember that they will be modified upon creation.
– Crismogram
Sep 9 '18 at 20:43
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How do you suppress output in IPython Notebook?
... Thought it would be simple -- but weirdly, contextlib.redirect_stdout and sys.stdout = open(os.devnull, 'w') both fail (end up printing an extra blank line). This should be the accepted answer.
– Luke Davis
Nov 4 '18 at 18:20
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How to randomize (or permute) a dataframe rowwise and columnwise?
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Random Samples and Permutations ina dataframe
If it is in matrix form convert into data.frame
use the sample function from the base package
indexes = sample(1:nrow(df1), size=1*nrow(df1))
Random Samples and Permutations
Difference between JSON.stringify and JSON.parse
...json.stringify(json.parse(data))?i saw this in code...so this is basically converting json data in to object and then again reconverting it to json data..
– HIRA THAKUR
Jul 22 '13 at 11:00
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Convert boolean result into number/integer
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Use the unary + operator, which converts its operand into a number.
+ true; // 1
+ false; // 0
Note, of course, that you should still sanitise the data on the server side, because a user can send any data to your sever, no matter what the client-side cod...
How to convert a string with comma-delimited items to a list in Python?
How do you convert a string into a list?
14 Answers
14
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Ruby: Easiest Way to Filter Hash Keys?
...nt.
If you're using Ruby, you can use the select method. You'll need to convert the key from a Symbol to a String to do the regexp match. This will give you a new Hash with just the choices in it.
choices = params.select { |key, value| key.to_s.match(/^choice\d+/) }
or you can use delete_if an...
Relative frequencies / proportions with dplyr
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Error in bind_rows_(x, .id) : Column am` can't be converted from numeric to character`
– f0nzie
Aug 6 '18 at 23:41
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