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Latest Discussions

• DoE when factors can not be changed independently

  Hi,Can DoE be used where factors can not be changed independently?  In the illustrative example attached, we want to maintain a response when changing the scale of manufacture from 21 L to 21 m3.  To do this we need to establish which mixing factor to maintain.  The effect of maintaining each mixing factor can in turn be assessed on an intermediate scale (as shown in the table), but the act of cha...

  kjwx109prime

  Discussions |

  Sep 30, 2024 7:38 AM

  1994 views | 2 replies

• Declaring a variable inside a column formula

  Hi,Is it good practice to declare a variable inside a column formula? Or does this create risk of errors? My formula works well, but I'm concerned that it might be unreliable. rownum = Row(); If( :Measurement type == "STUDY_VARIABLE", :Control means[Min( Current Data Table() << get rows where( :Measurement type == "STUDY_CONTROL" & :Control group == :Control group[rownum] ) )], :Control means...

  Asterix

  Discussions |

  Sep 30, 2024 7:32 AM

  952 views | 2 replies

• Can you use the Equivalence of means sample size calculator for attribute data?

  Hi,  Maybe i'm using the wrong type of test..but I would like to generate a sample size to compare two parts.  The test is an attribute test and I just want to verify the new part doesn't increase the failures by more than 10%.  This seemed like a non inferiority test when I first thought about it but playing around with the calculator, it seems like it's more of a test for variable data.  Am I ju...

  SerialDeviation

  Discussions |

  Sep 30, 2024 5:51 AM

  848 views | 1 replies

• Extracting Deltas between two tables serialized samples for multiple parametric measurements

  I have measured data for 50 serialized parts over three different temperature (Room, Hot, Cold) in three different tables.  Each serialized part has over 100 measured parameters.  I want to extract the deltas (Room - Hot) and (Room - Cold).  Putting these two calculations into two new tables would allow me to find the parts with the worst temperature deltas. i have tried Table compare, but it does...

  JBEng

  Discussions |

  Sep 30, 2024 4:47 AM

  882 views | 3 replies

• How should I set DoE design when there are some operationally dependent parameters ?

  For my experiment, I have two variables: (1) additive concentration (0, 1, 5 mg/L) and (2) timing for additive supplementation (during cell seeding, during plasmid transfection). Since the timing becomes irrelevant when the additive concentration is 0 mg/L, how could I assign the factors / their levels that account for this operational dependency during designing DoE using JMP ?

  Naruchit

  Discussions |

  Sep 29, 2024 11:58 PM

  751 views | 1 replies