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To find whether a column exists in data frame or not
I have a data.frame with the name "abcframe"
4 Answers
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Showing data values on stacked bar chart in ggplot2
I'd like to show data values on stacked bar chart in ggplot2. Here is my attempted code
2 Answers
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Where can I get a list of Ansible pre-defined variables?
I see that Ansible provide some pre-defined variables that we can use in playbooks and template files. For example, the host ip address is ansible_eth0.ipv4.address. Googleing and searching the docs I cound't find a list of all available variables. Would someone list them for me?
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Windows 7 SDK installation failure
...achine, and the only solution I've found on the web is to make a swathe of registry changes. I've done this - still no success.
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“sending 'const NSString *' to parameter of type 'NSString *' discards qualifiers” warning
I have Constants NSString, that I want to call like:
3 Answers
3
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View.setPadding accepts only in px, is there anyway to setPadding in dp?
Android function View.setPadding(int left, int top, int right, int bottom) only accepts values in px but I want to set padding in dp. Is there any way around it?
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What's the point of const pointers?
I'm not talking about pointers to const values, but const pointers themselves.
17 Answers
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Which mime type should I use for mp3
I'm trying to decide which mime type to choose for returning mp3 data (served up by php)
5 Answers
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What is __pycache__?
From what I understand, a cache is an encrypted file of similar files.
10 Answers
10
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(Built-in) way in JavaScript to check if a string is a valid number
I'm hoping there's something in the same conceptual space as the old VB6 IsNumeric() function?
37 Answers
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