subset

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How to pick the T1 and T2 threshold values for Canopy Clustering?

I am trying to implement the Canopy clustering algorithm along with K-Means. I\'ve done some searching online that says to use Canopy clustering to get your initial starting points to feed into K-mean[详细]

2023-03-31 03:53 分类：问答
List of (nearly) equal columns from a data.frame by condition in R

First without the details I have data.frames like that one: val1 val2 val3 val4 val5 11.121.12.14.2 25.755.64.99.9[详细]

2023-03-28 17:49 分类：问答
Help on subsetting a dataframe

I am using %in% for subsetting and I came across a strange result. > my.data[my.data$V3 %in% seq(200,210,.01),][详细]

2023-03-27 07:53 分类：问答
R gotcha: logical-and operator for combining conditions is & not &&

Why doesn\'t subset() work with a logical and && operator combining two conditions? &g开发者_JAVA百科t; subset(tt, (customer_id==177 && visit_date==\"2010-08-26\"))[详细]

2023-03-25 13:10 分类：问答
How to subset a data.frame in a list and return data.frame?

When subsetting a data.frame inside of a list, I get vectors instead of a data.frames (see the example below). How to a开发者_开发百科void this and get a data.frames?[详细]

2023-03-25 01:22 分类：问答
Filtering elements in a jQuery set based on their parent node

Suppose I have two containers with the same CSS applied to them and their sub items. <div class=\"wrapper\">[详细]

2023-03-24 09:22 分类：问答
Randomly subset data set multiple times and calculate means and variances

I never came to any conclusions re: this question, so I thought I would rephrase it and ask again. I would like to subsample my dataset 10,000 times to generate means and 95% CIs for each of my respo[详细]

2023-03-22 14:28 分类：问答
Help with persisting problem when using 'subset' function in R

I would like to use the subset function in R to extract smaller groups of panel study time series data.[详细]

2023-03-19 23:12 分类：问答
Subsetting in R, joining and calculating multiple repetitions

Here is a sample: > tmp labelvalue1开发者_JS百科value2 1aa_x_xxxxx 2bc_x_xxxxx 3aa_x_xxxxx 4bc_x_xxxxx[详细]

2023-03-18 13:38 分类：问答
PHP sort array by subset

I have two arrays. One is a larger bit of data: Array ( [12] => blah [36] => foo [58] => blah [60] =>开发者_JS百科; blah[详细]

2023-03-16 05:27 分类：问答