Actuarial Outpost
 
Go Back   Actuarial Outpost > Search Forums
FlashChat Actuarial Discussion Preliminary Exams CAS/SOA Exams Cyberchat Around the World Suggestions



Showing results 1 to 25 of 300
Search took 0.07 seconds.
Search: Posts Made By: DjPim
Forum: Financial Mathematics Yesterday, 07:25 PM
Replies: 7
Views: 131
Posted By DjPim
Gandalf has it. Remember, a = present value,...

Gandalf has it.

Remember, a = present value, s = future value.

The $500k is how much it would cost you if you went and bought an annuity with those characteristics (10k/yr, 20 yr, 4%). Or, as...
Forum: Exam PA: Predictive Analytics Yesterday, 05:47 PM
Replies: 608
Views: 79,696
Posted By DjPim
That's my understanding of it. I also logged the...

That's my understanding of it. I also logged the response variable as a knee-jerk reaction for my exam, and half way through when picking family/link I realized I didn't need to for creating a model....
Forum: Exam PA: Predictive Analytics Yesterday, 11:21 AM
Replies: 608
Views: 79,696
Posted By DjPim
stepAIC didn't work for you? And you had the MASS...

stepAIC didn't work for you? And you had the MASS library loaded?
Forum: Exam PA: Predictive Analytics 06-17-2019, 09:24 PM
Replies: 608
Views: 79,696
Posted By DjPim
Normally true, yes, but RMSE being better could...

Normally true, yes, but RMSE being better could just mean the data you held out luckily fit quite well with the model you made. How much better are we talking? If it was too much different, there's a...
Forum: Non-Actuarial Topics 06-17-2019, 06:40 PM
Replies: 72
Views: 1,583
Posted By DjPim
Probably at least $5

Probably at least $5
Forum: Non-Actuarial Topics 06-17-2019, 05:13 PM
Replies: 72
Views: 1,583
Posted By DjPim
You might be pigeon-holing your dating life to be...

You might be pigeon-holing your dating life to be with people your friend knows. Depending on your tastes, you might have planned that, but what happens when you meet someone on your own that you...
Forum: Exam PA: Predictive Analytics 06-17-2019, 11:41 AM
Replies: 608
Views: 79,696
Posted By DjPim
I didn't do much in terms of combining factor...

I didn't do much in terms of combining factor levels, but I did combine months into Quarters

I did pretty much exactly the same as you on PCA, but I included 3 positive and 3 negative

I chose...
Forum: Software & Technology 06-17-2019, 11:27 AM
Replies: 24,706
Views: 6,098,507
Posted By DjPim
Had a friend mention Borderlands 2 this weekend....

Had a friend mention Borderlands 2 this weekend. I looked it up and the bundle with all the DLC's was $6 on steam, so I picked it up.

I'm usually the kind of guy who looks up the most efficient...
Forum: Exam PA: Predictive Analytics 06-14-2019, 12:00 AM
Replies: 608
Views: 79,696
Posted By DjPim
You might be thinking of the .Rhistory file that...

You might be thinking of the .Rhistory file that gets saved when you choose 'Save' when closing RStudio, which will save output / environment / graphs. If you open an rmd with a .Rhistory in the same...
Forum: Exam PA: Predictive Analytics 06-11-2019, 11:37 AM
Replies: 608
Views: 79,696
Posted By DjPim
I may be wrong, but I don't think it makes any...

I may be wrong, but I don't think it makes any sense to look at AIC of test data. AIC is something you compare between two different models of the same data to measure the payoff of adding/removing...
Forum: Exam PA: Predictive Analytics 06-07-2019, 02:30 PM
Replies: 608
Views: 79,696
Posted By DjPim
I think you got it, but just want to make sure...

I think you got it, but just want to make sure since I got a bit confused with some of your wording.

The AUC = Area Under Curve, referring to the ROC curve. I believe you understood the ROC curve...
Forum: Exam PA: Predictive Analytics 06-07-2019, 11:16 AM
Replies: 608
Views: 79,696
Posted By DjPim
It's a different metric. The point of AUC is to...

It's a different metric. The point of AUC is to get a sense of the performance of the model overall, under several conditions. It's kind of the same reason we do cross validation -- we might see some...
Forum: Non-Actuarial Topics 06-06-2019, 01:05 PM
Replies: 109
Views: 1,949
Posted By DjPim
Exciting! I'm currently getting a new...

Exciting! I'm currently getting a new construction too. They're pouring the concrete on Monday and we're meeting with the construction manager to double-triple-check they have all our options and...
Forum: Exam PA: Predictive Analytics 06-04-2019, 02:47 PM
Replies: 608
Views: 79,696
Posted By DjPim
cobalt best theme :judge:

cobalt best theme :judge:
Forum: Exam PA: Predictive Analytics 06-04-2019, 02:29 PM
Replies: 608
Views: 79,696
Posted By DjPim
Several times in the modules they show use of...

Several times in the modules they show use of gridExtra::grid.arrange() to put multiple plots together--anyone know a good way to control the size of the individual plots within the grid?

As an...
Forum: Exam PA: Predictive Analytics 06-03-2019, 05:53 PM
Replies: 608
Views: 79,696
Posted By DjPim
I may be way off on this, but I thought they...

I may be way off on this, but I thought they might be natural outliers. We probably normally expect term life products to be sold with terms ranging from 5-30 years, but maybe there was a newer...
Forum: Software & Technology 05-24-2019, 12:34 PM
Replies: 86
Views: 11,845
Posted By DjPim
Anniversary event! Workshop live! Rotating...

Anniversary event! Workshop live! Rotating holiday arcade! I was stoked to play some Lucioball on Tuesday, but sadly it rotated out a few hours later. Hopefully it comes back soon... seriously my...
Forum: Exam PA: Predictive Analytics 05-24-2019, 11:29 AM
Replies: 608
Views: 79,696
Posted By DjPim
There's a thread for this project that might...

There's a thread for this project that might prove useful. Most of these are answered there, but I'll try to summarize:

1. Base level refers to the level of the factor with the most observations....
Forum: Software & Technology 05-23-2019, 11:10 AM
Replies: 22
Views: 877
Posted By DjPim
Got into the stress test yesterday. 2 hours...

Got into the stress test yesterday.

2 hours of waiting in queues, disconnecting, waiting in queues, server full, waiting in queues, character time out.

Hopefully my contribution helps them to...
Forum: Exam PA: Predictive Analytics 05-21-2019, 04:04 PM
Replies: 608
Views: 79,696
Posted By DjPim
To be fair, the modules aren't that bad. However,...

To be fair, the modules aren't that bad. However, the only way (I know of) to access the modules is to pay the full $1125 to register for the exam, so probably check out other videos / books.
Forum: Exam PA: Predictive Analytics 05-21-2019, 03:47 PM
Replies: 80
Views: 6,483
Posted By DjPim
:iatp: When you create a ROC curve, it...

:iatp:

When you create a ROC curve, it represents testing a bunch of different cutoff points and seeing how well the model holds up in each scenario. Typically, with balanced data, you set it to...
Forum: Exam PA: Predictive Analytics 05-21-2019, 01:14 PM
Replies: 80
Views: 6,483
Posted By DjPim
I had the same question. From my discussions with...

I had the same question. From my discussions with other people, it seems to be the exact same reason as what you mentioned about multicollinearity. In essence, this group of 4 variables (Race1,...
Forum: Software & Technology 05-21-2019, 11:56 AM
Replies: 1,285
Views: 136,341
Posted By DjPim
I joined late apparently, so a friend in my clan...

I joined late apparently, so a friend in my clan ran me through a couple rifts which got me enough pieces to kickstart me. I'm sticking to the legacy of nightmares stuff for a while, but will...
Forum: Exam PA: Predictive Analytics 05-21-2019, 11:34 AM
Replies: 80
Views: 6,483
Posted By DjPim
Important to note that this will let you see what...

Important to note that this will let you see what your data is coded as, not necessarily what it should be. You understand that factors = categorical, right? Is your confusion more on when it is...
Forum: Exam PA: Predictive Analytics 05-21-2019, 11:24 AM
Replies: 80
Views: 6,483
Posted By DjPim
The program says "spend $2 extra on this patient...

The program says "spend $2 extra on this patient and they won't be readmitted". Normally, if readmitted, it costs the hospital $25. The question is pretty much saying "we could put everyone on the...
Showing results 1 to 25 of 300

 

All times are GMT -4. The time now is 11:53 AM.


Powered by vBulletin®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
*PLEASE NOTE: Posts are not checked for accuracy, and do not
represent the views of the Actuarial Outpost or its sponsors.
Page generated in 0.25854 seconds with 7 queries