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Learning Resources

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Latest Discussions

  • How PCA on correlations standardizes?

    I have a confusing issue that I am trying to sort out, but having trouble finding an answer to anywhere. I am using JMP to run PCA on corrections using REML Estimation. I know that doing a PCA on correlations standardizes the data in some way and I am not sure how.  Does anyone know how?  I am trying to understand how because I am having trouble interpreting my results without knowing this. Specif...

    Binoink Binoink
    Discussions |
    May 1, 2019 3:17 AM
    8325 views | 9 replies

  • Lack of fit test issue

    Hi, I built a simple logistic model to predict loan chargeoffs. The variables included all appear to be significant and the model passed the whole model test. However, the model didn't pass the Lack Of Fit test. So my questions are: 1. Does it imply that some important variables or interactions are missing thus it is not a good mordel? 2. Can I still use the odds ratio/estimate to calculate the im...

    Nancy Nancy
    Discussions |
    Apr 30, 2019 4:07 PM
    11512 views | 4 replies

  • How to create a indicator column for double data with a formula

    I' dlike to create a formula indicator column for double data by applying the following JSL Code: dt << Clear Column Selection(); dt << Select Duplicate Rows(); dt << Name Selection in Column( Selected( 1 ), Unselected( 0 ) ); dt << Clear Select();Despite I 'm getting the right results, the code creates a lot error messages. It would be great if the code could be improved.

    Thomas1 Thomas1
    Discussions |
    Apr 30, 2019 7:38 AM
    6351 views | 6 replies

  • Adding a regression line with known slope in Graph Builder

    Hi All, I like to use Graph builder for  X-Y correlation charts instead of using Bivariate. Does someone knows weather in graph builder we can do a regression line or fit line with known slope?  can user define the slope of fit? i want to use graph builder since i want to have multiple charts separated in GX and GY groupes.   Thank you very much for your inputs. Ram

    ram ram
    Discussions |
    Apr 29, 2019 2:24 AM
    17551 views | 6 replies

  • How to show the value in a colour map shape graph

    Dear all I would like to show the values in a Map shape coloured graph. I try to label all rows and plot the desired column but my graph did not show the value in it. I can see the map shape graph (essentially is a rectangular graph 14 X10 ) but I do not manage to see the value for each box for this graph.Can sombody help me please? Thansk in advance Kind regards 

    Marx_C_81 Marx_C_81
    Discussions |
    Apr 29, 2019 2:11 AM
    14634 views | 7 replies

Latest Discussions

  • How PCA on correlations standardizes?

    I have a confusing issue that I am trying to sort out, but having trouble finding an answer to anywhere. I am using JMP to run PCA on corrections using REML Estimation. I know that doing a PCA on correlations standardizes the data in some way and I am not sure how.  Does anyone know how?  I am trying to understand how because I am having trouble interpreting my results without knowing this. Specif...

    Binoink Binoink
    Discussions |
    May 1, 2019 3:17 AM
    8325 views | 9 replies

  • t-test not listed

    T-test option not listed? 

    yurimalkova yurimalkova
    Discussions |
    Apr 28, 2019 11:20 AM
    4740 views | 1 replies

  • Correlation matrix is not positive definite and singular?

    Hello,I am trying to do a factor analysis (PCA) on a large data set. It has 181 columns and 163 rows, values are between -6 and 8. I have started the factor analysis and the eigenvalues and scree plot looks good.Below all the factors it says: "Warning: the Correlation matrix is not positive definite". Can someone help me understand what it means?I try to perform the analysis using Maximum Likeliho...

    luinel luinel
    Discussions |
    Apr 28, 2019 5:24 AM
    5200 views | 1 replies

  • table of fold change P value and FDR for comparison of groups

    I have datasets with many response variables (~15K) and many samples (~7K).  I have clustered the samples based on prior knowledge into 10 clusters, and need to define the variables that are characteristic for each.  I want to generate a table/matrix that lists all the variables vs the clusters,  with the fold change (ratio) in mean response values (each cluster vs all other samples together) with...

    genecb genecb
    Discussions |
    Apr 27, 2019 2:44 PM
    4429 views | 3 replies

  • Creating JMP script for data manipulation

    Hi i want to create a JSL for following table title1Title2Title3stack1stack2stack3..............stack(n-1)stacknACE0.55.0100..........2045.65BDF1.521055.35.........2241 for this table i want to create a script which will create a new table with stacked all columns from stack1 to stack n. then in new table add new column at the end which will put numbers  1,2..25 abd repeat same sequence till end o...

    Probe_PE Probe_PE
    Discussions |
    Apr 25, 2019 10:29 AM
    3706 views | 4 replies

Latest Discussions

  • Chi square or Cochran's Q test

    Okay, so i have to decide whether i should use chi-square or Cochran's Q test for one of my study.If i assume meat as experimental unit (EU) and impose 6 different wood smoke (like apple smoke, cedar smoke, hickory smoke etc.) on EU and consumers (people) act as observational unit (OU). I have 10 consumers and each one will taste each treatment (6 treatments) and respond liking (9 point scale), an...

    sharmachetan sharmachetan
    Discussions |
    Apr 16, 2019 3:54 PM
    3033 views | 0 replies

  • Selecting Number of Clusters in Hierarchical Clustering

    One way to select possible number of clusters in hierarchical methods is to identify the relatively large changes in distance as number of clusters change (see table below). When I look at the actual distance measure from the table (clustering history below dendogram), there is a bigger jump from 3 clusters to 4 than from 4 to 5 (smaller), suggesting 4 may be the right decision. However, when you ...

    pratyushdash pratyushdash
    Discussions |
    Feb 23, 2019 5:51 PM
    3091 views | 0 replies

  • Beta Generalized Regression and adjusted chi-square values

    I have a data set from a two-choice rodent feeding trial. We were testing the effectiveness of 10 deterrents by coating them on seeds and offering them to rodents alongside control seeds that were uncoated. The explanatory variable is which of the 10 deterrents the treatment seed was coated with, and the response variable is the proportion of control seed and treatment seed consumed.  The question...

    Mananahi Mananahi
    Discussions |
    Feb 13, 2019 9:58 AM
    2376 views | 0 replies

  • DF Dens for repeated measures ANOVAs

    Dear JMP Community, When I run repeated measures ANOVAs with JMP (RMS, with Subject as a random factor), I have noticed that when a certain factor is crossed with Subject, the corresponding DF Den stays independent while the DF Dens for the other factors are put together as “Residual”.  Please see Images 1-3 of the attached file on how “DF Den” under “Test Denominator Synthesis” change across imag...

    mu mu
    Discussions |
    Feb 6, 2019 8:10 AM
    4096 views | 0 replies

  • Partition and Pruning

    I'm working with a dataset of about 27,000 rows and am trying to use 9 factors to predict a response using the partition function and a decision tree.  I'm using both k-means and validation.  When I tell JMP to Go, it will split 100-200 times, however the Split History shows me very little improvement after about 20 splits. For what I'm trying to do, I want to back up to the 20th split, but I don'...

    NG NG
    Discussions |
    Jan 30, 2019 8:25 AM
    3414 views | 0 replies
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