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wget command to download a file and save as a different filename
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Also notice the order of parameters on the command line. At least on some systems (e.g. CentOS 6):
wget -O FILE URL
works. But:
wget URL -O FILE
does not work.
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Select Pandas rows based on list index
...is will not work if the indexes in your dataframe do not correspond to the order of the rows due to prior computations. In that case use:
df.index.isin([1,3])
... as suggested in other responses.
share
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Is there a way to make GHC provide the type class constraints of typed holes?
... should be.
These potential instances exist:
instance Show Ordering -- Defined in ‘GHC.Show’
instance Show Integer -- Defined in ‘GHC.Show’
instance Show a => Show (Maybe a) -- Defined in ‘GHC.Show’
...plus 22 others
...plus 11 instances i...
MFC如何实现Spin控件和Edit控件合用,实现Edit控件中数字的增减 - C/C++ - ...
...和Edit控件合用,实现Edit控件中数字的增减菜单-Format- Tab Order（快捷键：Ctrl + D）依次点各个控件，设置TabOrder，要求Edit应该在Spin前面并且相邻Spin属性中设置Alignment:...菜单-Format- Tab Order（快捷键：Ctrl + D）
依次点各个控件，设置...
GetNextDlgTabItem用法详解，回车替代Tab键切换控件焦点 - C/C++ - 清泛网 ...
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Remarks
The GetNextDlgTabItem function searches controls in the order (or reverse order) they were created in the dialog box template. The function returns the first control it locates that is visible, not disabled, and has the WS_TABSTOP style. If no such control exists, the function ret...
pyplot scatter plot marker size
...lt is rcParams['lines.markersize'] ** 2.
This can be taken literally. In order to obtain a marker which is x points large, you need to square that number and give it to the s argument.
So the relationship between the markersize of a line plot and the scatter size argument is the square. In order...
Does MySQL included with MAMP not include a config file?
...eports:
Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf /Applications/MAMP/conf/my.cnf ~/.my.cnf
Copy one of the variants in /Applications/MAMP/Library/support-files/ to one of the locations in mysqld's search order above, and you should be...
Unique (non-repeating) random numbers in O(1)?
...t. (See Fisher-Yates shuffle for a good way to do this.)
Return numbers in order from the shuffled list.
So this doesn't require a search of old values each time, but it still requires O(N) for the initial shuffle. But as Nils pointed out in comments, this is amortised O(1).
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Java String - See if a string contains only numbers and not letters
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In order to simply check the string that it contains only ALPHABETS use the following code :
if (text.matches("[a-zA-Z]+"){
// your operations
}
In order to simply check the string that it contains only NUMBER use the foll...
Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related?
... [super hitTest... to find out whose hitTest:withEvent: is called in which order.
– MHC
Feb 10 '11 at 20:01
shouldn't ...