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Latest Discussions

  • JSL - Find % of missing data

    I have a data table with 3 columnsI need to create a table showing % of missing data in the HEIGHT column grouped by ID and SUB_ID. In the case above the result should be: But it is possible in some cases that there are no rows with missing data. In that case Percent Missing should be 0. I need help in writing a JSL script for this. I will appreciate any guidance. I have three issues in my script ...

    rverma rverma
    Discussions |
    Feb 28, 2021 7:40 AM
    5462 views | 8 replies

  • Looking for a sample size calculator for defect proportions that can help me optimize the sample size with a minimum proportion to detect and the CIs for computed proportions.

    Use case: 35,000 defects detected by a machine on one wafer. An operator samples 1500 images and sorts them into 10 categories. The percentages of the defect categories are meant to reflect the defects in the population of 35,000. In this case 1500 images were used but what happens when the 5000 images are used? What does that do to the confidence intervals on the proportions. As the sampling gets...

    students_t students_t
    Discussions |
    Feb 27, 2021 12:38 PM
    5011 views | 4 replies

  • How is JMP STD error for means and STD error for Mean difference calculated? I wish validate the numbers I get in Excel with JMP

    How does JMP calculate the Std Error of means and Std Error of Diff in the LS means Table and LS Means Differences Student's t. I tried to replicate the results by STD error calculated from both Standard deviation of sample and population,but the values do not match. Please refer the document attached, I calculated the  STD errors from the values in 4 groups as well as theSTD error of the 4 means ...

    samjoshva samjoshva
    Discussions |
    Feb 27, 2021 12:36 PM
    7019 views | 5 replies

  • Conducting a "chi-plot" in JMP

    I am attempting to assess the independence of some continuous variables in a dataset and would like to perform what I've typically seen referred to as a "chi-plot" of two continuous variables.  Is there an equivalent plot in JMP that can be used?

    NathanFisk NathanFisk
    Discussions |
    Feb 27, 2021 11:20 AM
    3332 views | 7 replies

  • 4PL fit failure

    I am trying to get to the bottom of an odd observation when trying to fit data using a 4PL. In short, when I fit my data I end up with a flat line:  If I do any of the following I end up with a more proper looking fit, and I am sure that other minor changes to the numbers themselves may also fix this bug:Change 0.08 to 0.0800000001Change 26042 to 26043Invert the way the data is within the table (w...

    P_Desmond P_Desmond
    Discussions |
    Feb 27, 2021 8:45 AM
    2536 views | 3 replies

Latest Discussions

  • Looking for a sample size calculator for defect proportions that can help me optimize the sample size with a minimum proportion to detect and the CIs for computed proportions.

    Use case: 35,000 defects detected by a machine on one wafer. An operator samples 1500 images and sorts them into 10 categories. The percentages of the defect categories are meant to reflect the defects in the population of 35,000. In this case 1500 images were used but what happens when the 5000 images are used? What does that do to the confidence intervals on the proportions. As the sampling gets...

    students_t students_t
    Discussions |
    Feb 27, 2021 12:38 PM
    5011 views | 4 replies

  • How is JMP STD error for means and STD error for Mean difference calculated? I wish validate the numbers I get in Excel with JMP

    How does JMP calculate the Std Error of means and Std Error of Diff in the LS means Table and LS Means Differences Student's t. I tried to replicate the results by STD error calculated from both Standard deviation of sample and population,but the values do not match. Please refer the document attached, I calculated the  STD errors from the values in 4 groups as well as theSTD error of the 4 means ...

    samjoshva samjoshva
    Discussions |
    Feb 27, 2021 12:36 PM
    7019 views | 5 replies

  • 4PL fit failure

    I am trying to get to the bottom of an odd observation when trying to fit data using a 4PL. In short, when I fit my data I end up with a flat line:  If I do any of the following I end up with a more proper looking fit, and I am sure that other minor changes to the numbers themselves may also fix this bug:Change 0.08 to 0.0800000001Change 26042 to 26043Invert the way the data is within the table (w...

    P_Desmond P_Desmond
    Discussions |
    Feb 27, 2021 8:45 AM
    2536 views | 3 replies

  • How to show value for certain points in Graph Builder

    Hi, I am using Graph Builder to plot values for two populations (Blue vs Blue), is there a way to only show the value of all the blue points but not blacks.  Thanks.  

    TingChen TingChen
    Discussions |
    Feb 27, 2021 12:27 AM
    7756 views | 2 replies

  • Data leakage

    Hi I have read several post on data leakage between the test and training groups. The common suggestions to avoid leakages: 1 Split the database in training and test set before any normalization, standardization and missing value imputation  2 in case of time series avoid the random split. Decide a time cut point and use it to separate  the training and test set. Any comment, suggestions, useful r...

    FR60 FR60
    Discussions |
    Feb 26, 2021 1:38 PM
    5843 views | 11 replies

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