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Change column type from string to float in Pandas
...mn of a DataFrame.
>>> s = pd.Series(["8", 6, "7.5", 3, "0.9"]) # mixed string and numeric values
>>> s
0 8
1 6
2 7.5
3 3
4 0.9
dtype: object
>>> pd.to_numeric(s) # convert everything to float values
0 8.0
1 6.0
2 7.5
3 3.0
4 0.9
dtype:...
What does O(log n) mean exactly?
...ber, find the person or business with that number.
O(n log n): There was a mix-up at the printer's office, and our phone book had all its pages inserted in a random order. Fix the ordering so that it's correct by looking at the first name on each page and then putting that page in the appropriate sp...
Advantage of creating a generic repository vs. specific repository for each object?
...tcher, IDataUpdater, IDataInserter, and IDataDeleter (for example) you can mix-and-match to define your requirements through the interface and then have implementations that take care of some or all of them, and I can still inject the does-it-all implementation to use while I'm building the app out....
JSON and XML comparison [closed]
...
Why do you mix JS strict status problem to this unrelated comparison? Referring double or triple equal signs.
– localhoost
Oct 4 '16 at 14:26
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How to design a database for User Defined Fields?
...
The short answer is "don't mix data and metadata." Creating varchar columns for fieldname or tablename is storing metadata identifiers as data strings, and that's the start of a lot of the problems. Also see en.wikipedia.org/wiki/Inner-platform_effec...
Does Java casting introduce overhead? Why?
...erence in typing for generic types and arrays makes it often unsuitable to mix arrays and generic types.
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How to read a .xlsx file using the pandas Library in iPython?
...uld be file://localhost/path/to/workbook.xlsx
sheetname : string, int, mixed list of strings/ints, or None, default 0
Strings are used for sheet names, Integers are used in zero-indexed
sheet positions.
Lists of strings/integers are used to request multiple sheets.
...
MySQL stored procedure vs function, which would I use when?
...
You can't mix in stored procedures with ordinary SQL, whilst with stored function you can.
e.g. SELECT get_foo(myColumn) FROM mytable is not valid if get_foo() is a procedure, but you can do that if get_foo() is a function. The price...
React.js: Wrapping one component into another
...s unique for a component, and you can use normal props too if you want, or mix props and children:
const AppLayout = ({header,footer,children}) => (
<div className="app">
<div className="header">{header}</div>
<div className="body">{children}</div>
<...
What does Docker add to lxc-tools (the userspace LXC tools)?
... using KVM, vmware etc.
However, NCLXD also enables a hybrid cloud of a mix of traditional HW VMs and LXC VMs.
The OpenStack nclxd plugin a list of features supported include:
stop/start/reboot/terminate container
Attach/detach network interface
Create container snapshot
Rescue/unrescue instanc...