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How to read a .xlsx file using the pandas Library in iPython?
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I usually create a dictionary containing a DataFrame for every sheet:
xl_file = pd.ExcelFile(file_name)
dfs = {sheet_name: xl_file.parse(sheet_name)
for sheet_name in xl_file.sheet_names}
Update: In pandas version 0.21.0+ you will get this behavior more clea...
Difference between “@id/” and “@+id/” in Android
In @+id/ the plus symbol + instructs to create a new resource name and add in to the R.java file but what about @id/ ? From the documentation of ID : when referencing an Android resource ID , you do not need the plus symbol, but must add the android package namespace, like so:
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Why would iterating over a List be faster than indexing through it?
Reading the Java documentation for the ADT List it says:
5 Answers
5
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Which cryptographic hash function should I choose?
The .NET framework ships with 6 different hashing algorithms:
9 Answers
9
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Looking for a clear definition of what a “tokenizer”, “parser” and...
...ood book, but it does require the reader to have a good grounding in CS. Some book with more practical appeal would be "Writing Compilers and Interpreters" by Ronald Mak, "Modern Compiler Implementation", Andrew Appel; "Compiler Construction", Niklaus Wirth; "Compiling with C# and Java" and "Compile...
What is the advantage of using forwarding references in range-based for loops?
...r what you're up to. And if I did do it, it wouldn't hurt to include a comment as to why:
#include <vector>
int main()
{
std::vector<bool> v(10);
// using auto&& so that I can handle the rvalue reference
// returned for the vector<bool> case
for (auto&a...
Should I use a data.frame or a matrix?
When should one use a data.frame , and when is it better to use a matrix ?
6 Answers
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Peak detection in a 2D array
I'm helping a veterinary clinic measuring pressure under a dogs paw. I use Python for my data analysis and now I'm stuck trying to divide the paws into (anatomical) subregions.
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Homebrew install specific version of formula?
How do I install a specific version of a formula in homebrew? For example, postgresql-8.4.4 instead of the latest 9.0.
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In what areas might the use of F# be more appropriate than C#? [closed]
...y demonstrates a sweet spot for the language within enterprise software, namely algorithmically complex analysis of large data sets. My experience has been a very positive one. In particular:
Units of measure The industry I work in is littered with units. The equations I implemented (often of a geo...