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Select first 4 rows of a data.frame in R
...we have the following dataset with 15 rows
>data <- data <- read.csv("./data.csv", sep = ";", header=TRUE)
>data
LungCap Age Height Smoke Gender Caesarean
1 6.475 6 62.1 no male no
2 10.125 18 74.7 yes female no
3 9.550 16 69.7 no female ...
Run a string as a command within a Bash script
...lude server::team_l_start = ${teamAComm} server::team_r_start=${teamBComm} CSVSaver::save='true' CSVSaver::filename = 'out.csv'
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How to determine the encoding of text?
... binary mode, i.e. open("filename.txt", "rb").
– L. Kärkkäinen
Jul 15 '19 at 4:34
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What causes java.lang.IncompatibleClassChangeError?
...a-based APIs 2: Achieving API Binary Compatibility" written by Jim des Rivières.
There are also some automatic tools to detect such changes:
japi-compliance-checker
clirr
japitools
sigtest
japi-checker
Usage of japi-compliance-checker for your library:
japi-compliance-checker OLD.jar NEW.jar
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HTTP 401 - what's an appropriate WWW-Authenticate header value?
... answered Nov 17 '09 at 12:07
Pär WieslanderPär Wieslander
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format statement in a string resource file
...wered Mar 14 '16 at 11:04
Timo BährTimo Bähr
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Html helper for
... ViewModel
{
[Required, Microsoft.Web.Mvc.FileExtensions(Extensions = "csv",
ErrorMessage = "Specify a CSV file. (Comma-separated values)")]
public HttpPostedFileBase File { get; set; }
}
HTML View:
@using (Html.BeginForm("Action", "Controller", FormMethod.Post, new
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What is the purpose and use of **kwargs?
... answered Nov 20 '09 at 9:58
Pär WieslanderPär Wieslander
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推荐系统算法初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...过推荐算法处理后，返回一个按照用户喜好度排序的item列表。
推荐算法大致可以分为以下几类[1]：
基于流行度的算法
协同过滤算法
基于内容的算法
基于模型的算法
混合算法
2.1 基于流行度的算法
基于流行度的算法非常...
Remove duplicate lines without sorting [duplicate]
...
To remove duplicate from 2 files :
awk '!a[$0]++' file1.csv file2.csv
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