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Latest Discussions

• Intraclass Correlation

  HiI need to compute the intraclass correlation for 2 readers who measured the same subject once each. I have rows of subjects with a column for each reader. It does not seem possible to do this with the MSA tool, which gives me an error when I try to use it (not enough information to compute standard deviation). SPSS does this with essentially one click (Reliability tool). Am I missing something? ...

  markmhammer

  Discussions |

  Oct 29, 2021 11:33 AM

  4049 views | 6 replies

• How to quantitatively compare particle distributions??

  Ok, so I have a large data set that has particle size distributions (surface area for each particle in the sample) for over 100 samples and I need a way to quantitatively (or semi-quantitatively) compare them to the whole data set or sort into groups with similar distribution characteristics.  The vast majority of the points are in the very small size fraction but due to the very small size do not...

  seismicfish

  Discussions |

  Oct 29, 2021 11:08 AM

  4947 views | 9 replies

• Model Selection-stepwise

  Hello, I have screened a series of biological parameters on a biological response with a DSD. I am doing a forward stepwise regression AICc, and at p value below 0.05, I see only one or maximum two of my parameters become significant, but beyond that (like at around 0.1 or 0.2), several others pop out as significant, and if I remove them, the R square value decreases. In some models I do not see e...

  _Luci_

  Discussions |

  Oct 29, 2021 7:23 AM

  2713 views | 6 replies

• Global Zip codes. Best done in JMP or SAS?

  ISO has standards for zipcodes around the world. Is this feature available in JMP, SAS or Both.I guess since this is a JMP forum, I should limit this to JMP. Here's the ISO standard, https://en.wikipedia.org/wiki/ISO_3166-2 China I need to map. China has prefectures but they have these subvisions at the local level.Also, is there a way to list both chinese simpllified, chinese traditional, romaniz...

  Residentx

  Discussions |

  Oct 29, 2021 12:52 AM

  3131 views | 6 replies

• Using variables to create formula columns

  For( i = 1, i <= N Items( allm ), i++, m = allm[i]; name = "Peak Mass " || Char( m ); del = Current Data Table() << delete columns( Char( name ) ); (New Column( Char( name ), set formula( If( subtract(eval(m), 3) < :deltamass <= add(eval(m),3), :pctrelative, 0 ) ) ) ; If( Contains( name, "Peak Mass 0" ), del ) ; ); );Help! I have tried like 5 things, and I can't get my variable to spit ou...

  rmeredith

  Discussions |

  Oct 28, 2021 10:45 AM

  1587 views | 3 replies