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How do I find numeric columns in Pandas?
...ete code:
import pandas as pd
import numpy as np
df = pd.DataFrame({'A': range(7, 10),
'B': np.random.rand(3),
'C': ['foo','bar','baz'],
'D': ['who','what','when']})
df
# A B C D
# 0 7 0.704021 foo who
# 1 8 0.264025...
Removing index column in pandas when reading a csv
...d idea if you have heterogenous data types. Better just use
df.columns = range(len(df.columns))
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Could not find an implementation of the query pattern
...le'. 'Where' not found.
Consider explicitly specifying the type of the range variable 'row'.
From my code:
var x =
from row in ds.InvcHead
where row.Company == Session.CompanyID
select row;
So I did as it suggested and explicitly specified the typ...
How do you Encrypt and Decrypt a PHP String?
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Ramesh, this is because you're getting the raw encrypted data. You can get a nicer version of the encrypted data by using base64, like this: base64_encode(encrypt($string)) -- To decrypt it: decrypt(base64_decode($encrypted))
– mendezcode
...
Indexes of all occurrences of character in a string
...regex
.findAll(this) // get the matches
.map { it.range.first } // get the index
.toCollection(mutableListOf()) // collect the result as list
// call the methods as
"Banana".indicesOf("a") // [1, 3, 5]
...
How do I generate random numbers in Dart?
...w about negative random numbers (doubles)? I'm trying to implement a randomRange method that would generate for example from -0.8 to 0.9 ... the result would be for example -0.32
– just_a_dude
Nov 7 '13 at 13:59
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MongoDb query condition on comparing 2 fields
...cution. Below is my test in python:
import pymongo
from random import randrange
docs = [{'Grade1': randrange(10), 'Grade2': randrange(10)} for __ in range(100000)]
coll = pymongo.MongoClient().test_db.grades
coll.insert_many(docs)
Using aggregate:
%timeit -n1 -r1 list(coll.aggregate([
{
...
Is XSLT worth it? [closed]
... is the de facto data format of web development today, be it config files, raw data or in memory reprsentation. XSLT and XPath give you an enormously powerful and very efficient way to transform that data into any output format you might like, instantly giving you that MVC aspect of separating the p...
How do you embed binary data in XML?
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Wow. This will make the average kilobyte-range file about 230 times larger :)
– Nyerguds
Aug 8 '11 at 12:03
36
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How to animate the change of image in an UIImageView?
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simple and opens up a whole range of other animation effects between the images.
– So Over It
Oct 6 '13 at 17:28
1
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