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Find element's index in pandas Series
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>>> myseries[myseries == 7]
3 7
dtype: int64
>>> myseries[myseries == 7].index[0]
3
Though I admit that there should be a better way to do that, but this at least avoids iterating and looping through the object and moves it to the C level.
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How to handle AccessViolationException
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For those who use c++/cli as a dll, the code should be added to the top .exe project.
– Felix
Jun 20 '17 at 2:34
add a comment
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iOS: how to perform a HTTP POST request?
...sion, downloadTask: URLSessionDownloadTask,
didWriteData bytesWritten: Int64, totalBytesWritten writ: Int64, totalBytesExpectedToWrite exp: Int64) {
print("downloaded \(100*writ/exp)" as AnyObject)
}
func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, d...
Generic Repository With EF 4.1 what is the point
...traight out there in my business layer I have to reference EntityFramework.dll there as well as in my DataLayer project. That alone tells me that it needs some sort of wrapping.
– Ingó Vals
Oct 3 '11 at 10:30
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How to deal with floating point number precision in JavaScript?
...egers up to the length of the significand, and as per ECMA standard it's a 64bit float. So it can exactly represent integers up to 2^52
– Michael Borgwardt
Jul 25 '12 at 13:15
5
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Java NIO FileChannel versus FileOutputstream performance / usefulness
...r. Run some benchmarks with buffers of 1KB, 2KB, 4KB, 8KB, 16KB, 32KB and 64KB to prove it to yourself.
Don't perform java benchmarks that read and write to the same disk.
If you do, then you are really benchmarking the disk, and not Java. I would also suggest that if your CPU is not busy, then ...
Download large file in python with requests
...ve
url = 'http://mirror.pnl.gov/releases/16.04.2/ubuntu-16.04.2-desktop-amd64.iso'
dst = 'ubuntu-16.04.2-desktop-amd64.iso'
urlretrieve(url, dst)
Or this way, if you want to save it to a temporary file:
from urllib.request import urlopen
from shutil import copyfileobj
from tempfile import NamedTe...
VSS使用指南 - 开源 & Github - 清泛网 - 专注IT技能提升
...工程必须有一个资源影射列表。
工程
下面以工程为单位讲述怎样在VSS中管理我们的资源。工程就是一个功能模块。我门已经存在以下一些工程：
$/公司产品/WAP产品目录下的有：
Thirdparty工程：这个工程主要放的是一些第三方...
What is the maximum length of data I can put in a BLOB column in MySQL?
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A BLOB can be 65535 bytes (64 KB) maximum.
If you need more consider using:
a MEDIUMBLOB for 16777215 bytes (16 MB)
a LONGBLOB for 4294967295 bytes (4 GB).
See Storage Requirements for String Types for more info.
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How do CUDA blocks/warps/threads map onto CUDA cores?
...8 cores.
2'. There is a big difference between 8 blocks of 48 threads and 64 blocks of 6 threads. Let's assume that your kernel has no divergence and each thread executes 10 instructions.
8 blocks with 48 threads = 16 warps * 10 instructions = 160 instructions
64 blocks with 6 threads ...