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Questions tagged [pairwise]

273 questions
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apply pairwise function on a pandas dataframe python

I have a dataframe, and I would like to apply my own distance pairwise. The problem it that myDistance takes 2 dataframes, and using skelarn pairwise_distance or scipy pdist converts is to ndarray. Example: df =…
matlabit
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R-Common elements on all pairwise comparisons of elements of a vector

I have a vector in R, say c(2, 2, 3, 2, 3, 4, 4), and I want to build a square matrix of size n (the number of elements of the vector) that has a 1 if the element i of the vector has the same value of the element j , and 0 otherwise. In this example…
coolsv
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pairwise ANOVA of subset of data

I need to perform multiple pairwise ANOVA's in R, and correct the p-values using bonferroni. However I don't need to compare every CLASS to each other. Below is my data format and selcontrasts: the pairs of which I need to contrast the…
Sam Vanbergen
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Matrix of pairwise row operations on pandas.DataFrame

I want to create a matrix of the results of operations on all pairs of rows in a DataFrame. Here's an example of what I want: df = pandas.DataFrame({'val': [ 2, 3, 5, 7 ], 'foo': ['f1', 'f2', 'f3', 'f4']}, …
Cai
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how to add two list to make a new matrix

i want to append two list as in order to do a pair wise sort of elements [[-1, -1], [-1, -1], [4, 2], [4, 1]] to make as [[-1, -1], [-1, -1], [4, 1], [4, 2]] it may be that i append two list [4,1] and [4,2] into a new list but a.append(list) gives…
imshashi17
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R: 2-way repeated measures ANOVA & pairwise.t.test

Using the example proposed by Field in Discovering Statistics Using R (pag 561) for 1-way repeated measures ANOVA: Participant <- gl(8, 4, labels = c("P1", "P2", "P3", "P4", "P5", "P6", "P7","P8" )) Animal <- gl(4, 1, 32, labels =…
Not Sure
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R: Create a pairwise matrix of counts of shared values between items in one column and features in another

I have a data thats's a bit like this: items <- c("A", "A", "A", "A", "B", "B", "B", "C", "C", "C", "C", "C", "D", "D") features <- c("ab", "ac", "ad", "ab", "ab", "az", "ay", "az", "az", "al", "ab", "ad", "aa", "ac") df <- data.frame(items,…
Shaun Lehmann
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How do I run every possible pairwise comparison using the Wilcoxon Sign-Rank Test when there are more than two levels of a grouping variable?

I have a within-subjects dataset for which I am running pairwise comparisons on a dependent variable that is be separated into four groups. I have the data organized long-ways and wide-ways: Example…
Linda Jasmine Hoffman
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Approximate a function given pairwise comparison data of entities with N features

Let's say I'm looking for an apartment with a roommate, and I want to train/discover a model of preferences that my roommate can use to evaluate if I'll like a potential apartment without needing my input. The dataset has some interval features…
Sarthax
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Great Expectations - expect_column_pair_values_to_not_be_equal

Is there a way to achieve the expectation: expect_column_pair_values_to_not_be_equal without having to create a custom expectation. If not what is the easiest way to create a custom expectation doing the desired outcome which is basically a…
PalBence
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Investigating if two strains of a virus are more likely than chance to occur together in a person

I am trying to explore if among 13 genotypes of a virus, any 2 are more likely to occur together in pairs in a person who can have multiple infections. my datastructure for this exploration is by visit, i.e a person can have multiple rows, each row…
Sakshi Tewari
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Parallelize multiple pairwise comparisons in Python

Consider we have a data frame with 10K rows and 2 columns. The first column is the customer message, and the cnt is the frequency of that message. Below is a sample dataset: message cnt 0 ABC 1 1 abc 2 2 cba 1 3 abcd …
Sophia
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Threading a pair-wise comparison/change of elements in a vector in Rust

Tried threading work on a vector that requires pair-wise comparison and adjustment of elements in the vector. Instead of using a nested loop, I generate a vector of id's (usize) that are paired off to avoid sending the same id to different…
C. Bartels
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Is there a R function to make pairwise correlation tests between 2 different subsets?

I have a dataset (con) divided in 2 groups (A and B) and for each sample from group A (1-5), group B has a correspondent sample (1-5), each sample has different measures (zinc, iron, cadmium) pertaining to it. My intended goal is making a…
Tig
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How to calculate the pairwise mutual information (MI) for N number of variables?

I want to compare the mutual information for each possible pair of variables. I want to identify the lower and higher mutual information of all possible combination. I'm not sure if doing the traditional way is correct. Maybe some kind of…
Brayan T
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