Questions tagged [jmp]

JMP is a statistical software package. Use this tag for any on-topic question that (a) involves JMP either as a critical part of the question or expected answer, & (b) is not just about how to use JMP .

Filter by
Sorted by
Tagged with
0
votes
0answers
17 views

Full factorial design involving two discrete variables with replicates as blocking factor; needed ANOVA details

I found this question (link) and I am intersted to know the answer from the experts. I have run a full factorial design involving two discrete variables, A at 4 levels, and B at 5 levels. I have ...
0
votes
0answers
7 views

Repeated measures with no response to stimulus sometimes - which models to use? JMP Pro [closed]

Design: Salamanders from New York and Georgia, both reared from eggs in 17 C and 25 C (4 groups total). High speed camera captured escape behavior. I calculated velocity, acceleration, how much they ...
0
votes
0answers
184 views

Is it correct that JMP has Mann-Whitney U for comparing more than 2 unpaired groups (instead of Kruskal-Wallis)?

To the best of my knowledge, the Mann-Whitney U test (also called Wilcoxon-Mann-Whitney) is for comparing only two unpaired groups, while the Kruskal-Wallis test is used for comparing two or more ...
0
votes
0answers
56 views

Statistical test for binned proportion data in JMP / MATLAB

I have been trying to determine the proper statistical test for comparing binned proportional data between groups. My data set is individual subjects (4-5 per group) with 76-165 cells per individual. ...
0
votes
1answer
40 views

Confused about type of analysis between categorical variable (degree of severity of accident) and continuous variable (number of car passengers)

Good afternoon, As indicated in the title, for a project I am interested in finding any (if at all) relation between the number of passengers in a car and the severity of an accident. I am using JMP ...
2
votes
1answer
63 views

What and how is the “Compare Densities” plot created in JMP under a one-way ANOVA?

I recently performed a simple one-way ANOVA for a homework problem For a second part of the problem we are asked to construct a plot to graphically compare the means at the factor levels, ...
1
vote
1answer
38 views

What statistical test should I use to compare before and after drug treatment in a group of 8 subjects?

I have a group of 8 subjects. For each subject I measure their heart rate 30,20, and 10 min before and after they take a drug. I then average the heart rate measurements in each subject to get one ...
0
votes
0answers
63 views

How to calculate betas of logistic regression if effect sizes are known?

I want to simulate responses using built in JMP Simulate Responses feature for learning purpose. I use binomial distribution and I assume that I know effect sizes of factors beforehand. So I know ...
1
vote
1answer
68 views

How do I find a specific point on a best fit line when doing linear regression analysis?

I have a scatter plot that I have drawn a line of best fit through in JMP. I want to know what equation to use to calculate the predicted y at specific points across the line. For example, if my x ...
1
vote
0answers
105 views

PCA: Dimension Reduction

I ran PCA Output is: . I am trying to increase the R-Square Value. In doing so, I want to only consider important variable. Till now I have cleaned the data by excluding the outliers and also by ...
1
vote
1answer
34 views

Testing the independence of the experimental series from a certain parameter

I have the following question. I have a number of experiments for different materials (see the picture in the attachment). The results of these experiments seem to be independent from material ...
1
vote
1answer
2k views

Creating a composite measure

I'm having trouble creating a composite measure. I have 5 different non-normal variables (all different scales). I'd like to create one score that takes into account these 5 variables. I can manually ...
1
vote
0answers
107 views

Fitting of the parameters of non-linear regression

I can fit the data with non-linear function, namely Mechanistic Growth curve from the JMP library. See the example of the fit in the next figure. The fit equation is BA = a(1 - b e-c *PA). BA ...
0
votes
1answer
491 views

Comparing Two Cohorts, Pre and Post scores

I'm working on a research project, and I could use a little assistance in picking the correct test. There are two cohorts that took a pre-test. Subsequently, the intervention group was given a ...
1
vote
0answers
250 views

Statistical Analysis with repeated measures categorical data

For my Master thesis I looked at behavioral responses of fish by quantifying their position as a reaction to a certain treatment. I have 20 Fish that I measured on 7 consecutive days. Every day, each ...
1
vote
0answers
711 views

statistical analysis for a small sample size

I would like to ask for help in choosing the correct statistical test for analyzing experimental data on small samples (4 repeats) THE EXPERIMENT: the experiment simulates development of a deposit on ...
4
votes
1answer
841 views

How to use REML to estimate correlation with missing data in R?

In JMP Multivariate Methods, REML is used to estimate correlation when there are missing data values (pg. 28). However, there is no documentation describing how this is done. I'm trying to compare ...
0
votes
1answer
39 views

Which tests should I run with one control group and 2 treatment groups?

I'm really bad at stats and am running an experiment looking at growth rate or individuals over the period of 28 days. I collected data on Day 0, 7, 14, 21, and 28 so I have 5 data points. I would ...
1
vote
1answer
90 views

Method in jmp to analyze occurrence of an event based on unique users in a category

I have a student project in which I would like to analyze application usage data specifically between three user groups. I have log data gathered including unique User IDs, actions and the identifier ...
1
vote
1answer
144 views

Histogram in JMP 11 [closed]

While plotting histogram in JMP 11, the option to set the bin width is not available. I also tried doing it with the axis settings, but the X-axis setting is disabled (X-axis has the variable values ...
1
vote
0answers
134 views

density estimate for continuous support with continuous frequency

I have data with continuous frequency and a continuous support which I'd like to analyze and plot using a kernel density estimate in R. I can create the basic plot in JMP fairly easily using the ...
0
votes
1answer
144 views

What are the right values for the prior mean and prior variance matrix in choice design?

I am doing my first choice experiment with JMP & the tutorial I found at http://blogs.sas.com/content/jmp/2009/01/15/optimal-design-of-the-choice-experiment/ Right now I am not sure if I ...
1
vote
1answer
164 views

Confidence interval from summaries in JMP

If i only have mean, std dev. and number of observations is it then possible to generate af 95% confidence interval or a Chi squared test in JMP using only these summaries as input?
2
votes
2answers
1k views

how is the logistic regression scatter plot created

I have a newbie question about logistic regression fit plots. I'm fitting a very simple binary output based on a simple continuous input ...
3
votes
2answers
3k views

How to calculate confidence intervals in a GLM using the profile likelihood?

I've been trying to better understand how JMP does regression and associated models. I can compute the correct parameter estimates for a GLM, by using iteratively re weighted least squares. But now I'...
4
votes
2answers
2k views

R and JMP produce different regression results due to sum of squares calculation and other factors

I recently started transitioning from JMP to R and to get started, I've been trying to reproduce some of my old JMP results in R. However, when I run a multiple regression with one continuous variable ...
4
votes
3answers
2k views

What is “the shortest half of the data”?

Here is a histogram (realized with JMP) displaying two types of box plot called outlier box plot and quantile box plot. Right below, there are a bunch of explanations of the meaning of the different ...
1
vote
1answer
63 views

create graphic with multiple data-columns in different appearance in jmp

in jmp 11 on a mac I have data I want to plot nicely in a 2d-diagram. For the datapoints I made a regression to get a function for a smooth curve, now I want to plot the datapoints and the function in ...
5
votes
1answer
1k views

Is the goodness of fit test in JMP the Hosmer-Lemeshow goodness of fit test?

I'm working with an organization that is using JMP in their analysis, and I can't tell from the description in JMP's help files if the test for goodness of fit in their logistic regression is the ...
5
votes
1answer
1k views

Probability of data point being from distribution in normal mixtures

Using JMP, I was able to fit a distribution to a set of data, using the normal-2 mixtures model. It returns location (or mean), dispersion (standard deviation) and probability for each of the two ...
8
votes
1answer
573 views

Interval censoring

I ran an interval censor survival curve with R, JMP and SAS. They both gave me identical graphs, but the tables differed a bit. This is the table JMP gave me. ...
0
votes
1answer
316 views

Finding association between gender and favorite movie genre

I have a random sample of the following data on JMP. How do I find if there is an association between gender and favorite movie genre? I've been looking through different formulas and can't find ...
1
vote
1answer
37 views

Is it possible to have an F-test with a $p<.05$ even if there is an $R^2<.1$ for a least squares analysis in JMP?

I've been working with JMP, and I have found that often I get a significant p value but a relatively small r. Is this supposed to happen?
2
votes
1answer
10k views

Linear Regression: Ordinal or dummy independent variables?

I am a beginner who needs some help reading some results from linear regressions. I am looking for factors that influence the location of civil conflict events. My dependent variable is the distance ...
9
votes
1answer
3k views

Two-sample comparison of proportions, sample size estimation: R vs Stata

Two-sample comparison of proportions, sample size estimation: R vs Stata I got different results for sample sizes, as follows: In R ...
1
vote
2answers
1k views

Two-way ANOVA on not completely normal residuals

I have 2 factors, one (Page type) of 2 levels and the other (Intensity) of 4 levels. I did a 2x4 Full Factorial Design with 10 replications, so I did 80 experiments. Then I wanted to do a two-way ...
1
vote
1answer
343 views

Does JMP aggregate data in graph-building?

I am using JMP to find a relationship between drought index values and yearly corn yields for a 30 year period. I have drought data for seven different indeces and each index ranges from -6 (severe ...
2
votes
1answer
87 views

Proper methods for this case of repeated measures?

I am measuring hormone changes in animals. I have three groups: Groups A, B, and C. In each group, blood was collected from the SAME individuals for hormone assay at 0, 15, 30, and 60 min. This was ...
1
vote
2answers
2k views

Comparing many means in JMP

I'm trying to compare several sets of experiment data, by comparing means. I read there are several different tests such as Each Pair, Student’s t and All Pairs, Tukey HSD, which give different ...
2
votes
1answer
1k views

Stepwise Regression Models in JMP

In JMP, I am building a regression model by using "Analyze"->"Fit Model" and choosing "Stepwise" for the personality. Once I click "Run" in the "Model Specifications" window, I get the "Fit Stepwise" ...
1
vote
2answers
4k views

Confidence interval for values for a fitted line

I'm using JMP to analyze some sample data to make predictions about the population. My sample is from a destructive QC test, so I obviously want to minimize my sample. I have a response (my Y) and a ...
2
votes
1answer
234 views

How to compute confidence interval for number to treat in a logistic regression?

I have built a multivariate regression model where $\mathbf x$ is the variable vector. Now I am asked to calculate the confidence interval for the number to treat (NNT) at $\mathbf x=\mathbf {x_0}$ ...
1
vote
1answer
4k views

Tukey-Kramer test

Can anybody point me out a good reference for the Tukey-Kramer test? Secondly, suppose that we want to compare the mean of the group called "male" and the group called "female" (each group is ...
20
votes
3answers
28k views

How to set up and estimate a multinomial logit model in R?

I ran a multinomial logit model in JMP and got back results which included the AIC as well chi-squared p-values for each parameter estimate. The model has one categorical outcome and 7 categorical ...
2
votes
1answer
765 views

How should I design a database for multi-year data analysis with JMP?

I'm building a database of economic and political indicators provided by the World Bank and other similar sources. I would like to run uni- and multivariate analysis of these indicators over the past ...
3
votes
0answers
879 views

Discrepancy between stepwise and nominal logistic regression results in JMP

I have carried out a stepwise logistic regression in JMP. Then (using the proper button in the program window), I have chosen to build a nominal logistic regression model using (only) the variables ...
1
vote
1answer
1k views

Summary and frequency tables in JMP

Does anyone know how to create a nice looking summary table in JMP for several variables? I use Tables>Summary and the table I get has one row that includes for example mean(var1) mean(var2) mean(var3)...
5
votes
1answer
29k views

Relation between logistic regression coefficient and odds ratio in JMP

From the output of a logistic regression in JMP, I read about two binary variables: Var1 estimate -0.1007384 Var2 estimate 0.21528927 and then ...