From rwickens at protonmail.com  Wed Jun  7 23:38:32 2023
From: rwickens at protonmail.com (RW)
Date: Thu, 08 Jun 2023 03:38:32 +0000
Subject: [MINC-users] NaN handling in RMINC
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The image is unrelated - my apologies.

Rebekah

------- Original Message -------
On Wednesday, June 7th, 2023 at 11:31 PM, RW <rwickens at protonmail.com> wrote:

> Hello,
>
> I?m using minc toolkit 1.9.17 on the mincvm-packer ([Update for Virtualbox 6.1.12 and packer 1.6.0](https://github.com/CoBrALab/MINC-VM/commit/15ca2dd0ee9287136232da4fe8e3ac9104c3437a)) via Windows Oracle VirtualBox 6.1, with lubuntu 18.04, and R version 3.6.3 and RMINC version 1.5.2.3.
>
> When performing simple linear regressions using mincLm on RMINC, I notice that if one of the scans contains NaN values (via minccalc), the resulting Betas (regression coefficients) appear to have implausible ranges (e.g., ?Range: 3230528607327814463144632678524911616.000000 -0.061514).
>
> Is there a way I can ensure that NaNs of a given subject are ignored in the Beta calculations?
>
> Thank you for your assistance,
>
> Rebekah

From rwickens at protonmail.com  Tue Jun 20 08:49:35 2023
From: rwickens at protonmail.com (RW)
Date: Tue, 20 Jun 2023 12:49:35 +0000
Subject: [MINC-users] NaN handling in RMINC
Message-ID: <7LLSNGlaezXFmO9wwBVES2Y-DyG2nS2d3qNKvF_przcuR2p8v7Lzk9h4DDDBMZhpOshRLPULb9DlDiK7vfgx8IALI9lKSKp3hkL7V2P42lQ=@protonmail.com>

Hello,

I?m using minc toolkit 1.9.17 on the mincvm-packer ([Update for Virtualbox 6.1.12 and packer 1.6.0](https://github.com/CoBrALab/MINC-VM/commit/15ca2dd0ee9287136232da4fe8e3ac9104c3437a)) via Windows Oracle VirtualBox 6.1, with lubuntu 18.04, and R version 3.6.3 and RMINC version 1.5.2.3.

When performing simple linear regressions using mincLm on RMINC, I notice that if one of the scans contains NaN values (via minccalc), the resulting Betas (regression coefficients) appear to have implausible ranges (e.g., ?Range: 3230528607327814463144632678524911616.000000 -0.061514).

Is there a way I can ensure that NaNs of a given subject are ignored in the Beta calculations?

Thank you for your assistance,

RW