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Difference between map, applymap and apply methods in Pandas
...Footnotes
map when passed a dictionary/Series will map elements based on the keys in that dictionary/Series. Missing values will be recorded as
NaN in the output.
applymap in more recent versions has been optimised for some operations. You will find applymap slightly faster than apply...
Call Go functions from C
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Difference between decimal, float and double in .NET?
...thing that makes 0.1 "better" than 0.10000001 is because human beings like base 10. And even with a float value, if you initialize two values with 0.1 the same way, they will both be the same value. It's just that that value won't be exactly 0.1 -- it will be the closest value to 0.1 that can be e...
Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
... a very weird effect: Changing the loop variable from unsigned to uint64_t made the performance drop by 50% on my PC.
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How to send email attachments?
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Here's another:
import smtplib
from os.path import basename
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.utils import COMMASPACE, formatdate
def send_mail(send_from, send_to...
How to print a int64_t type in C
C99 standard has integer types with bytes size like int64_t. I am using the following code:
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float64 with pandas to_csv
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What is the difference between “int” and “uint” / “long” and “ulong”?
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Passing command line arguments from Maven as properties in pom.xml
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nginx: [emerg] could not build the server_names_hash, you should increase server_names_hash_bucket_s
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