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How to deal with “data of class uneval” error from ggplot2?
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3 Answers
3
Active
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What is the lifetime of a static variable in a C++ function?
...oo");
}
int main(int argc, char*[])
{
foo(argc != 2);
if (argc == 3)
foo(false);
}
Output:
C:>sample.exe
Created in foo
Destroyed in foo
C:>sample.exe 1
Created in if
Created in foo
Destroyed in foo
Destroyed in if
C:>sample.exe 1 2
Created in foo
Created in if
Destroyed...
How to validate date with format “mm/dd/yyyy” in JavaScript?
... // Check the ranges of month and year
if(year < 1000 || year > 3000 || month == 0 || month > 12)
return false;
var monthLength = [ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];
// Adjust for leap years
if(year % 400 == 0 || (year % 100 != 0 && year % ...
How to run only one task in ansible playbook?
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answered May 30 '14 at 4:29
MxxMxx
7,07333 gold badges2323 silver badges3535 bronze badges
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Is there an online name demangler for C++? [closed]
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133
I have created such an online serivice: https://demangler.com
This is a gcc c++ symbol demangl...
How to use radio on change event?
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João Pimentel Ferreira
7,29433 gold badges4040 silver badges5353 bronze badges
answered Oct 31 '12 at 7:13
undefinedundefined
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海量数据相似度计算之simhash和海明距离 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...色外星人 ” ==> 分词后为 “ 美国（4） 51区（5） 雇员（3） 称（1） 内部（2） 有（1） 9架（3） 飞碟（5） 曾（1） 看见（3） 灰色（4） 外星人（5）”，括号里是代表单词在整个句子里重要程度，数字越大越重要。
2、hash，...
Renaming files in a folder to sequential numbers
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323
Try to use a loop, let, and printf for the padding:
a=1
for i in *.jpg; do
new=$(printf "%0...
How can we make xkcd style graphs?
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edited May 17 '13 at 9:57
answered May 16 '13 at 20:49
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Python Pandas: Get index of rows which column matches certain value
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473
df.iloc[i] returns the ith row of df. i does not refer to the index label, i is a 0-based index....