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• Centre point vs factor level

  Hello:I am studying a DOE textbook and in one example there are two factors with two levels.A 2^2 experiment is set-up with 5 center points. There are no replicates or blocks. In total 9 runs My question is what is the benefit of CP, why not a two factor experiment with three levels, In total 8 runs Q1) Which scenario is more beneficial?Q2) Are there any cases where we should use CP and where we s...

  VarunK

  Discussions |

  Sep 1, 2023 5:32 AM

  1974 views | 5 replies

• Prediction equation for randomly chosen factors

  Hello: I have three factors two of which are three level factors and one has two levels. All the three factors are continuous.While analyzing the factors, I switched on the random effects for all the three factors. I have pasted the screen shot of the analysis below. I have some questions based on this as mentioned below:Q1) How to remove the variables from the model as we generally do in Fixed ef...

  VarunK

  Discussions |

  Sep 1, 2023 5:28 AM

  2593 views | 7 replies

• JMP >> ANALYSIS >> TREND TEST for CONTINUOUS Y by ORDINAL X?

  Hi JMP Community,   JMP Pro 16.1, Windows 10 Pro:   I have an apparently trivial question: How can I test for a Trend in Continuous data (Ys) across Ordinal X? I am familiar with the Cochran Trend Test for Ordinal Ys by Nominal X, but I cannot find an equivalent test for my data.   In the mock data, I simulated two behaviors: Y1 has a clear negative trend across the Ordinal XY2 has a weak trend ac...

  Thierry_S

  Discussions |

  Sep 1, 2023 2:31 AM

  1058 views | 1 replies

• Estimating the average sample standard deviation from the standard error of the means of a set of samples.

  I have a set of composite samples. Each is a composite of 8 charges of material collected in a single weigh boat. The weights were collected for each composite sample and divided by 8 for a mean sample weight. Is it possible to estimate the variation within the composited 8 from the large set of mean sample weights? Thank you!
  Jason

  ResponseOtter42

  Discussions |

  Sep 1, 2023 2:18 AM

  844 views | 1 replies

• How do i Stack newly created column without specified naming

  num_columns = 3; col_names = Associative Array(); For(i = 1, i <= num_columns, i++,col_name = Char(400 + (i - 1) * 100);ATOM0TABLE << New Column(col_name, Character, Nominal, formula(Word(i, :FINAL_RESULT, "_"), "")); col_names[i] = col_name); stacktable = ATOM0TABLE << Stack( Columns ( col_names), // List of columns to stack Source Label Column("Label"), Stacked Data Column("Data"), Out...

  weilyne

  Discussions |

  Sep 1, 2023 1:48 AM

  1178 views | 2 replies