# Please delete

**URL:** <https://discourse.mc-stan.org/t/please-delete/4197>\
**Category:** Modeling\
**Created:** [May 14, 2018, 7:32pm UTC](https://discourse.mc-stan.org/t/please-delete/4197 "2018-05-14T19:32:01Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![y64c](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/y64c/32/14669_2.png) [@y64c](https://discourse.mc-stan.org/u/y64c)\
**Post date:** [May 14, 2018, 7:32pm UTC](https://discourse.mc-stan.org/t/please-delete/4197/1 "2018-05-14T19:32:01Z")

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Please Delete.

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**Author:** ![sakrejda](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/sakrejda/32/845_2.png) [@sakrejda](https://discourse.mc-stan.org/u/sakrejda)\
**Post date:** [May 14, 2018, 7:38pm UTC](https://discourse.mc-stan.org/t/please-delete/4197/2 "2018-05-14T19:38:28Z")

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> [@y64c](#):
>
> n \<- length(x)

This isn’t right.

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**Author:** ![y64c](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/y64c/32/14669_2.png) [@y64c](https://discourse.mc-stan.org/u/y64c)\
**Post date:** [May 14, 2018, 7:42pm UTC](https://discourse.mc-stan.org/t/please-delete/4197/3 "2018-05-14T19:42:15Z")

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Oh wow, I didn’t even notice! Thanks for the assistance.

Unfortunately, now I’m getting this error:

> SAMPLING FOR MODEL ‘stan-eae944679c1d’ NOW (CHAIN 1).  
> Rejecting initial value:  
> Gradient evaluated at the initial value is not finite.  
> Stan can’t start sampling from this initial value.  
> Rejecting initial value:  
> Gradient evaluated at the initial value is not finite.  
> Stan can’t start sampling from this initial value.  
> Rejecting initial value:  
> Gradient evaluated at the initial value is not finite.  
> Stan can’t start sampling from this initial value.  
> Rejecting initial value:  
> Gradient evaluated at the initial value is not finite.  
> Stan can’t start sampling from this initial value.  
> Rejecting initial value:  
> Gradient evaluated at the initial value is not finite.  
> Stan can’t start sampling from this initial value.

Many times over.

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**Author:** ![sakrejda](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/sakrejda/32/845_2.png) [@sakrejda](https://discourse.mc-stan.org/u/sakrejda)\
**Post date:** [May 14, 2018, 7:57pm UTC](https://discourse.mc-stan.org/t/please-delete/4197/4 "2018-05-14T19:57:57Z")

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You could try normal(0,1) priors, `sigma` can just be declared `real<lower=0>` and maybe could use a prior,

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**Author:** ![y64c](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/y64c/32/14669_2.png) [@y64c](https://discourse.mc-stan.org/u/y64c)\
**Post date:** [May 14, 2018, 8:23pm UTC](https://discourse.mc-stan.org/t/please-delete/4197/5 "2018-05-14T20:23:20Z")

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Ok, I’m going to try and approach this problem from totally different angle. Please delete this post. Thank you for the assistance.