JMP User Community

Latest Discussions

Different values for variance and std. dev in JMP vs. Excel...why?

I'm transforming some data into ZScores. A friend transformed the data in excel and the values came up slightly different than those in JMP. When trying to track down why, I found that the variance and standard deviation in excel differed from JMP. I decided to calculate the standard deviation by hand, using excel as a glorified calculator. My variance and standard deviation still came out dif...
jcampbell-smith

Discussions |
Jun 16, 2014 12:46 AM

12542 views | 3 replies
Can the amount of jittering be customized?

Can anyone tell me if jittering is customizable? how do I do it? Thanks
jacaalgo

Discussions |
Jun 13, 2014 3:11 PM

13585 views | 5 replies
Manually Performing a Grubb's Test

Howdy Everyone,I am in the process of creating a JMP appendix for one of our processes and have found it necessary to explain how to manually set up a column formula to perform a Grubb's Test. I have done this in Excel, but i want to replicate that in JMP and have had a hard time setting up the formula correctly. We have 4 columns of independent data (1a,2a,3a,4a) that each need a Grubb's Test ...
cwestberg

Discussions |
Jun 12, 2014 2:03 PM

6997 views | 2 replies
Box Plot option in Variability Gauge Chart

When I turn on the Box Plot option in the Variability Gauge Chart, I get a quantile box plot where the whiskers are essentially range bars that extend to max and min values. Is it possible to change the style that is displayed to be the outlier box plot? That would be more useful for my application. Even better (I think), could the extent of the whiskers be customized in some way to extend to s...
ifink68

Discussions |
Jun 11, 2014 7:18 AM

5560 views | 2 replies
Grubbs outlier test and distributions

Hello all. I have a very high value in a univariate dataset and wanted to test if it were an outlier. I have downloaded and used the Grubbs outlier test script. However, the assumption for the Grubbs outlier test is that the data come from a normal distribution -- but I am unclear from the references I have read if this refers to the raw data or the residuals. It has been suggested that what could...
honiscb

Discussions |
May 30, 2014 9:00 AM

4711 views | 1 replies

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Latest Discussions

Manually Performing a Grubb's Test

Howdy Everyone,I am in the process of creating a JMP appendix for one of our processes and have found it necessary to explain how to manually set up a column formula to perform a Grubb's Test. I have done this in Excel, but i want to replicate that in JMP and have had a hard time setting up the formula correctly. We have 4 columns of independent data (1a,2a,3a,4a) that each need a Grubb's Test ...
cwestberg

Discussions |
Jun 12, 2014 2:03 PM

6997 views | 2 replies
Box Plot option in Variability Gauge Chart

When I turn on the Box Plot option in the Variability Gauge Chart, I get a quantile box plot where the whiskers are essentially range bars that extend to max and min values. Is it possible to change the style that is displayed to be the outlier box plot? That would be more useful for my application. Even better (I think), could the extent of the whiskers be customized in some way to extend to s...
ifink68

Discussions |
Jun 11, 2014 7:18 AM

5560 views | 2 replies
Grubbs outlier test and distributions

Hello all. I have a very high value in a univariate dataset and wanted to test if it were an outlier. I have downloaded and used the Grubbs outlier test script. However, the assumption for the Grubbs outlier test is that the data come from a normal distribution -- but I am unclear from the references I have read if this refers to the raw data or the residuals. It has been suggested that what could...
honiscb

Discussions |
May 30, 2014 9:00 AM

4711 views | 1 replies
Moving / Rolling CpK

Hey Friends,I have a table with a continious process data. I want to calculate the CpK at every measurment, so that I can follow the variation in CpK with time. Is there an elegant way to do so ?RegardsSG
none1

Discussions |
May 12, 2014 7:31 AM

9306 views | 5 replies
Parameter estimates in Logistic Regression

I have simulated three data sets of 20M points each for testing LR with binary response variables with very rare events:1) Two continuous effects: Beta0=12, beta1=1 and Beta2=1. X1 is Normal (-0.8, .25) and X2 is -ABS[Normal (0,5)]. (Each of the two variables increases the probability of the event, depending upon the value of the variable.) In this case there are about 711,000 positive events in 2...
ranjan_mitre_or

Discussions |
Apr 16, 2014 12:18 PM

5692 views | 6 replies

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Latest Discussions

Graph Builder Remove Variable

Hello,I am trying to use jsl to remove the x-axis variable and replace it with a different one. It looks like I should use the GraphBuilderBox <- Remove Variable() tool, but since I change the x-axis variable multiple times, I do not know its name and would like to use the Remove Variable(Role("X"), Position(1)) method, but this does not work. Any assistance would be appreciated.Thank you,Martin
Martin

Discussions |
Apr 15, 2014 6:44 AM

2601 views | 0 replies
How to calculate average (median) of a group of variables to get the eudlidean centre

How would I calculate the shape of the average (using the median) of a variable from a group within a data set? I need a certain function for calculating the centre of gravity (centroid) or Euclidian centre of this group of variable.
Many thanks!!
alexsheehy1992

Discussions |
Apr 2, 2014 12:17 PM

3986 views | 0 replies
How to establish a DOE related to multivariate analysis

I have encountered a DOE aspect issue as below:Background:1. A new plastic mold with 20-cavity, that means each shot/trial will yield 20 parts2. each part has two critical dimensions.3. there are 11 factors/variables (injection molding machine parameters) which will have impact on these 2 critical dimensionPurpose of DOE1. By DOE, custom design, to detect which factors/parameters are RED factor or...
mujahida

Discussions |
Mar 23, 2014 6:43 AM

2931 views | 0 replies
LD50 and LT50 calculation

Hi everybody,I would want to calculate LD50 and LT50 from a dataset organized in 6 columns:- Name of the compound (I just got 1 compound named A)- Concentration of the compound (2 dilutions per compound)- Individual number (a fixed number of 10 individuals is used per assay)- State of the individual at the end of the experiment (1 = alive, 0 = dead)- Day death (experiment last 15 days)- Experiment...
cecilia

Discussions |
Mar 5, 2014 8:13 AM

4770 views | 0 replies
How to add "All pair Tukey-Kramer" & mean diamond in graph builder box plots?

We can do as above simply using "Fit Y by X" with quantiles and compare means , however I can't find the way if I compile box plots using graph builder (especially when I need to compare more complicated box plots).Can anyone show some hints please? Thank you very much.
Anonymous

Discussions |
Mar 2, 2014 9:15 PM

3169 views | 0 replies