replicate

相关标签：javascript jquery android 多少钱 iPhone

Using "..." and "replicate"

In the documentation of sapply and replicate there is a warning regarding using ... Now, I can accept it as such, but would like to understand what is behind it. So I\'ve created this little contrive[详细]

2023-03-20 23:26 分类：问答
How to duplicate a MySQL database on the same server

I have a large MySQL database, lets call it live_db, which I want to replicate on the same machine to provide a test system to play around with (test_db), including table structure and data.[详细]

2023-03-19 04:49 分类：问答
Create sequence of repeated values, in sequence?

I need a sequence of repeated numbers, i.e. 1 1 ... 1 2 2 ... 2 3 3 ... 3 etc. The way I implemented this was:[详细]

2023-03-14 07:38 分类：问答
Why I can't read replicate data in MongoDB?

I have created a replica Set with 4 MongoD running. port: 2017, 2018, 2019, 2020 Very standard.I followed the instruction as in the documentation.[详细]

2023-02-06 23:07 分类：问答
how do I re-duplicate sql server database?

I would like to stress test my database, which is a hospital patient database. The current one is 2 GB. I would like to have a 100GB database, so I would like do the following:[详细]

2023-01-15 10:27 分类：问答
Create list of single item repeated N times

I want to create a series of lists,开发者_高级运维 all of varying lengths. Each list will contain the same element e, repeated n times (where n = length of the list).[详细]

2023-01-11 06:56 分类：问答
Have a SVN checkout location connected to Codeplex and propagate updates to another develpment location connected to another SVN repository

I would like to checkout a read only SVN projects (e.g. from Codeplex) to a folder on my local disk, open the solution (let\'s say I am getting Dotnetnuke and open it\'s solution, add some projects to[详细]

2023-01-10 06:06 分类：问答
R: When using the rep(..,..) to replicate 1020 a character variables, the result contains just 1019 replicates?

When programming within the R environment I used rep(\"[35,40)\",1020). This should give me a list with 1020 times \"[35,40)\". However, the result contains only 1019 of these elements.[详细]

2023-01-09 09:08 分类：问答
Perl Hash Slice, Replication x Operator, and sub params

Ok, I understand perl hash slices, and the \"x\" operator in Perl, but can someone explain the following code example from here (slightly simplified)?[详细]

2023-01-02 09:45 分类：问答
Repeat each row of data.frame the number of times specified in a column

df <- data.frame(var1 = c(\'a\', \'b\', \'c\'), var2 = c(\'d\', \'e\', \'f\'), freq = 1:3) What is the simplest way to expand each row the first two columns of the data.frame above, so that each[详细]

2022-12-31 15:00 分类：问答