Questions tagged [tables]

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61
votes
3answers
5k views

Who created the first standard normal table?

I'm about to introduce the standard normal table in my introductory statistics class, and that got me wondering: who created the first standard normal table? How did they do it before computers came ...
51
votes
8answers
3k views

What is a good resource on table design?

I've seen various theoretical treatments of graphics, such as the Grammar of Graphics. But I have seen nothing equivalent with regards to tables. Over the while I have developed an informal model of ...
25
votes
1answer
2k views

Statistical tables in old books purposefully wrong?

I remember having read a while ago that in old (pre-computer days) books, the last digits of the theoretical quantiles shown in the appendices were inaccurate in order to discourage plagiarism (the ...
19
votes
1answer
56k views

How do I find values not given in (interpolate in) statistical tables?

Often people use programs to obtain p-values, but sometimes - for whatever reason - it may be necessary to obtain a critical value from a set of tables. Given a statistical table with a limited ...
18
votes
1answer
8k views

Plotting sparklines in R

I would like to use R to plot out something like this: It would seem possible but highly complex to keep track of the coordinates, width, height, etc. Intuitively it would seem best to treat each ...
17
votes
3answers
13k views

When would it be appropriate to report variance instead of standard deviation?

I have conducted an analysis in which I have modeled different variance components. When reporting the results in a table, it is much more concise to report standard deviations instead of variances. ...
13
votes
2answers
11k views

Number of significant figures to put in a table?

Is there a well founded rule for the number of significant figures to publish? Here are some specific examples / questions: Is there any way to relate the number of significant figures to the ...
12
votes
2answers
4k views

Best Practices for Creating 'Tidy Data'

Hadley Wickham wrote a stellar article called "Tidy Data" (link) in JSS last year about data manipulation and getting the data into an "optimal" condition in order to perform analysis. However, I was ...
11
votes
1answer
5k views

What do you do if your degrees of freedom goes past the end of your tables?

The degrees of freedom in my F table don't go up high enough for my big sample. For example, if I have an F with 5 and 6744 degrees of freedom, how do I find the 5% critical value for an ANOVA? What ...
8
votes
2answers
357 views

Boxplots as tables

We are preparing a manuscript and the editor asked us to convert a figure with a boxplot into a table "because of the more exact data content". While I think boxplots are pretty decent in revealing ...
8
votes
1answer
37k views

How to generate nice summary table?

I want to have R display the data it gives me from the summary() function in a table so I can easily share this. I am currently just doing ...
7
votes
2answers
3k views

Reporting Results of Mann-Whitney U Test - Means vs Medians

I had a question yesterday that I got a bunch of great responses on. I have, hopefully, a quicker question here. There is a debate in the literature regarding reporting means vs medians in a ...
6
votes
2answers
15k views

How to determine how many variables and what kind of variables a table of data has?

Here's an example regarding what I'm lost on. In the past I've just found myself counting columns to determine how many variables a table has, but I've realized that's totally insufficient. For ...
4
votes
1answer
9k views

Calculate p-value for a negative z

I'm trying to do a hypothesis testing and the result I'm getting is strange because the p value I get is greater than 1. I'm using $p_0= 0.65$ and $\hat{p} = 0.60$. To calculate $Z$ I'm using $(0.60-...
4
votes
3answers
567 views

How to succinctly report the correlation between two variables for 20 different subsets of the data in a table?

I have 20 correlation coefficients (r) to report, for example, .34, .45, .67, .23. and so on. These are correlations between Variable A and Variable B, based on gender, age, education levels etc. I ...
4
votes
1answer
21 views

Test of significance for comparing counts of subjects across multiple groups

I have a fairly basic understanding of stats, but I generated a table for my PI with tests of significance (Fisher & Mann-Whitney-U) for categorical and continuous variables across 6 different ...
3
votes
2answers
95 views

finding out distributions mathematically

we know that the larger the degree of freedom, the less likely extreme events will occur (e.g., if you throw fair coin once, odds of heads is 50%, if you throw twice, odds of two heads are 25% and so ...
3
votes
3answers
5k views

Is there an R equivalent for the SPSS custom Tables feature? [closed]

I have used the custom tables feature in SPSS for my job almost every day. I am trying to learn R. How can I recreate the custom tables functionality in R? Is there some specific package that I need ...
3
votes
1answer
17k views

Chi Square Analysis Percentages

I've used chi-square analysis in school, but was absent for the lesson, and I never quite got the hang of it. I've been successful with it in the past, but now I'm trying to use percentage values, and ...
3
votes
1answer
297 views

Problem with factorial design in Minitab

I'm having a problem with a factorial design in Minitab, as it is not as clear how to proceed as all problems I've had thus far. The problem is to create a factorial design with two factors where the ...
3
votes
1answer
181 views

A tool to analyze multidimensional tabular data

I have a bunch of data in the following format: Count|| Fruit |Fruit Col.|| Veget. |Veg.Col.|| Spice --------------------------------------------------------- 123 || Apple | Red || Carrot ...
3
votes
0answers
455 views

Does N-1 correction for Pearson's Chi-Square apply to r x c tables generally?

Campbell (2007) recommended what he called the "N-1" correction for chi-square tests performed on two-by-two contingency tables. He described the correction as: "the K. Pearson chi-squared test but ...
2
votes
2answers
11k views

Cross tabulation of two variables with resulting average and SD [closed]

I am beginner of R software. I am looking for two variables and result cross tabulated but not in the form of frequencies. Could I get help on how to get result as average and standard deviation ...
2
votes
1answer
133 views
2
votes
1answer
6k views

How should I present linear regression output in a table format?

Is there any convention regarding the minimum information that should be included in a table showing a linear regression output? The reason for this question is that I want to make the output as ...
2
votes
1answer
169 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): ...
2
votes
1answer
302 views

Creating a descriptive table

I am having trouble trying to figure out how to report categorical and continuous data in one table. I want to create a descriptive table summarizing some of the categorical and continuous data from ...
2
votes
1answer
67 views

One-mode network (data transformation)

I'm looking for a solution to perform network analysis among my data set. My database is shaped like this : Table 1 : ...
2
votes
1answer
29 views

How to display potential outage when usage fluctuates greatly among customers?

I work for a Health Information Exchange. We have numerous "participants". Some send hundreds of messages a day, some might go a day or two without sending any messages. I'm creating a daily report ...
1
vote
1answer
55 views

is it preferable to use one table for all data or store each case individually? [closed]

For example, I have file with data on 3 cars, 3 boats, 3 motorcycles: ...
1
vote
1answer
2k views

How to get column-wise frequencies in R? [closed]

Let's suppose I have the following matrix: some_matrix <- matrix(c(2,2,2,1,3,1,3,1,3),nrow=3,ncol=3) I am trying to get the frequencies of the values 1,2 and ...
1
vote
1answer
2k views

Critical value for Wilcoxon one-sample signed-rank test in R

I am trying to find the critical value for the Wilcoxon one-sample signed-rank test. Currently, I can find the value using tables. I looked at qwilcox() in R, but ...
1
vote
1answer
47 views

Data Visualization: Summary Statistics

I have 10,463 observations of crop yield data, however, they are subdivided into 6 crops (~2000 obs each). I am wondering if it is best to report a summary statistics table by crop (maybe 3 crops per ...
1
vote
1answer
407 views

How is it correct to deduce significance level of Pearson's correlation from a table?

this is a rather elemental question, but any help would be appreciated anyway. This webpage gives a method of finding the p-value of Pearson's correlation coefficient, using a table. However, the ...
1
vote
0answers
108 views

Model summary tables for GLMMtmb [closed]

What package do people use to nicely visualize glmm model summaries? I tried huxtable::huxreg as explained here, but the documentation must be out of date because huxreg does not accept glmmTMB ...
1
vote
0answers
54 views

Calculating growth rate from a baseline of exactly zero

Say we have a series of month-on-month figures like the following, and we want to get the growth rate between the two periods: ...
1
vote
0answers
33 views

Presenting results from a regression with several lags of several independant variables

I have an OLS regression with several independent variables lagged several times. This means I have many coefficients and standard errors to present, making up a lot of rows in a table. A standard ...
1
vote
0answers
45 views

How to choose critical F value from statistical tables when the df is large? [duplicate]

For an F(2, 237) distribution, how should I determine a critical F value from a statistical table? Would I look up (2, 150) or (2, 300)? Should it simply be the closest degrees of freedom?
1
vote
0answers
144 views

Question about some of Sir Francis Galton's table in his book

n Sir Francis Galton's book, "Natural Inheritance" (found here: www.mugu.com/galton/books/natural-inheritance/pdf/galton-nat-inh-1up-clean.pdf) in particular table 12 and 13 on page 209 & pg 210 I ...
1
vote
0answers
294 views

How to convert a graph into a table [duplicate]

I have seen lots of examples of how to create a table in R from a data.frame, but my question is how can I create a table from a ...
1
vote
0answers
150 views

Possibility of analyzing the hypothesis using Friedman's test

Lets assume I have collected some data about sold ice creams on the local market on the daily basis. Days( just a number of observations, might be classified otherwise, it's not variable ) present the ...
0
votes
1answer
65 views

What percent of males in the sample own their own home?

I said it was (males who own a house) divided by total number of males: 132 / (132 + 50) which equals to 72.5% However, my professor seems to think it is the # of male who own the house divided by ...
0
votes
1answer
99 views

How to report large number of p.values in a table?

I have been comparing 13 groups to one another to assess significant differences. The simplest method of writing this up was a table, and there are numerous significant and non-significant results, ...
0
votes
1answer
108 views

Interpreting results for interaction term continuous continuous and presenting them in tables

I have run a series of analyses aiming to explore the association between a clinical score (it is a scale that goes from 0 to 15) and selected study outcomes. It is an imbalanced individual level ...
0
votes
1answer
74 views

Ambiguity about the confusion table: is it simply a calculation error or a technical consideration?

This table is the one from the paper entitled as: S. Wu, T. H. Falk, W. Y. Chan, ``Automatic speech emotion recognition using modulation spectral features", Speech Communication, vol. 53, no. 5, pp. ...
0
votes
1answer
2k views

Bayes' Rule - Law of Conditional Probability

A market research firms conducts studies regarding the success of new products. The company is not always perfect in predicting the success. Suppose that there is a 50% chance that any new product ...
0
votes
1answer
1k views

Standard normal distribution - the z-table for the PDF

I have searched high and low, and I simply cannot find this table anywhere. I am quite sure that for practical purposes I don't need it - that there are other methods, but it would be extremely ...
0
votes
1answer
35 views

Is there a generalisation of Wilcoxcon paired sign-rank test to compare more than two connected samples?

I have a table where columns denote customer, row-supplier, cell- total amount of items, sold by supplier to customer. I have a zero hypothesis(H0) about random choise of customers and H1 hypothesis(...
0
votes
1answer
35 views

Does this table structure have an specific name?

I'd like to know if this table structure has a particular name. How can I determine the tendency for 2017-09?
0
votes
3answers
3k views

Beta Coefficient range

Is there a table of range for beta coefficients used in multiple linear regression that we can use to interpret if influence is strong, very strong, weak or very weak. Thanks!