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0answers
7 views

One Response Value Fails for Proportional Odds Assumptions

I am analyzing placement scores on the response of students' grades for various courses. I have used a Chi-Sq test with the likelihood ratio to check the proportional odds assumption. For one of the ...
0
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1answer
19 views

What are the best method for presenting demographic data?

I have a large dataset of people, and connected demographic data, like age, gender and place of residence. I want to present a typical person from this dataset, as a presentation technique. Should I ...
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0answers
37 views

How do you pronounce BOBYQA?

This question might seem subjective, but I ask because there is some precedent on this site. I and my colleagues have always pronounced the name of this optimizer as "bobby cue ay" (which also gives ...
4
votes
1answer
51 views

Rule of thumb for the number of significant digits to report

What is a good rule of thumb for the number of significant digits to report? Preferably, the rule of thumb is given in a citable publication. I am particularly interested in a rule that does not ...
9
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2answers
123 views

What scientific field(s) studies how people interpret quantitative summaries and visualizations?

There's an abundance of well-known resources offering advice on data visualization. (E.g. Tufte, Stephen Few et al, Nathan Yau.) But to what field(s) might one turn to for answers to questions like ...
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0answers
9 views

how to call the unit for count and ratio data

I am writing a table to present my data. One of the informatio nI want to show is the unit of the data, e.g. cm for Height and kg...
10
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1answer
3k views

Displaying Ordinal Data - Means, Medians, and Mean Ranks

I have some ordinal data that is not normally distributed, so I decided to do non-parametric testing using the Mann-Whitney U Test. I am looking at differences between groups for seven scores - these ...
5
votes
3answers
7k views

How to choose a confidence level?

I often use a 90% confidence level, accepting that this has a greater degree of uncertainty than 95% or 99%. But are there any guidelines on how to choose the right confidence level? Or guidelines ...
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0answers
24 views

Decriptive statistics for a large amount of times series

I have 1,000 individual company time series of a variable, say X, observed 500 times (weekly observations). I would like to describe how this variable behaves. A graphic presentation of each time ...
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1answer
168 views

Average multiple precision recall curves

I have a binary classifier that I evaluate using cross validation. The classifier gives me a score for each observation and for each of the test sets I use a varying threshold to compute precision and ...
1
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2answers
68 views

Presenting summary statistics

For a section reporting descriptive statistics should I use the non-transformed variables $x$ or the transformed variables used in the regression analysis (e.g. differenced logs of a variable, $\Delta ...
15
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3answers
5k views

How to present box plot with an extreme outlier?

I could use some guidance about presenting some data. This first plot is a case-control comparison for the cytokine IL-10. I've manually set the y axis to include 99% of the data. The reason I ...
4
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2answers
208 views

Best way to represent data

What is the best way to represent the following data graphically? Can I use a histogram ...
2
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1answer
158 views

How to present a large dataset of polynomial multivariable regression in a useful format

I've produced a large dataset of results from 3 variable inputs. eg: x1, x2, x3 -> y y(x1,x2,x3) I've gone over the problem logically and it was clear the problem was non linear. To this end I've ...
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1answer
966 views

The right way to report random effects in a Cox survival model

I have a data set (patients (15000) nested in hospitals (50)), with a number of covariates. I built a proportional hazards model in Stata, and entered site as a frailty term. I would like to report ...
5
votes
1answer
741 views

Pairwise comparisons for a regression with sandwich estimates (in R)

The question in short I run a robust regression in R and made a boxplot with only one of the predictor variable grouping the response variable. On this boxplot I'd like to add some information about ...
2
votes
1answer
74 views

How to present the results of numerical comparisons

I ran a comparison where I estimated the parameters of a model using $S$ different methods several times. More specifically I simulated $M$ datasets $\boldsymbol{y}_1, \dots, \boldsymbol{y}_m$ from a ...
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0answers
96 views

How to present the Bayesian approach

I am writing a dissertation in which I use maximum likelihood estimation and an alternative Bayesian approach. I have written up the maximum likelihood estimation approach. However, I need some advice ...
1
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0answers
766 views

How to properly present McNemar's Test Statistics

I have read an article and I wonder if that is a proper way to present a McNemar's Test statistics. The study try to measure the change in knowledge before and after a lesson. They performed McNemar'...
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2answers
936 views

How should I organize my poster presentation?

I am currently in the process of making a poster presentation and would like some advice (or reference to advice) about some of the aspects of the graphic. For examples posters I am talking about see ...
2
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1answer
161 views

What do you call adding zeros to a table of frequency counts of consecutive integers where the given integer does not occur

I am wondering what the proper term is, for when a table like this (where values that did not occur are omitted entirely): ...
3
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1answer
474 views

Typographic conventions for width of figures in LaTeX data analysis reports

I've been thinking recently about conventions for figure width in data analysis reports that lead to PDFs (e.g., in A4 or Letter size). My usual context is R, Sweave, and LaTeX. The default figure ...