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Search: Posts Made By: AMedActuary
Forum: Property - Casualty / General Insurance 09-14-2018, 12:42 PM
Replies: 1
Views: 378
Posted By AMedActuary
This is mainly because you can't take a log of 0....

This is mainly because you can't take a log of 0.

You can try adding a small amount like 0.01 or 1 to all of your premiums then remove it from your predicted value.

The other issue is that...
Forum: General Actuarial 08-31-2018, 04:03 PM
Replies: 5
Views: 1,152
Posted By AMedActuary
Looks interesting. I plan on poking around the...

Looks interesting. I plan on poking around the dataset but not sure I'll have time for an in-depth analysis. I also wonder how much expertise in life insurance is needed. I vaguely remember life...
Forum: Property - Casualty / General Insurance 07-13-2018, 11:25 AM
Replies: 5
Views: 582
Posted By AMedActuary
Yes that makes sense. I forgot to mention that I...

Yes that makes sense. I forgot to mention that I did this in the past with Medicaid (which is basically allowed claims) but yes what you described would be best.
Forum: Property - Casualty / General Insurance 07-13-2018, 09:38 AM
Replies: 5
Views: 582
Posted By AMedActuary
As JohnLocke is saying, more information is...

As JohnLocke is saying, more information is needed to help you more.

If you're trying to model the total claims for each member, I would recommend a log transform to handle the heavy tails. You...
Forum: General Actuarial 07-02-2018, 11:24 AM
Replies: 13
Views: 1,276
Posted By AMedActuary
It would depend on why the data is missing. If...

It would depend on why the data is missing. If it's missing at random, it should be okay to just remove. If there are certain types of people who have more missing data than others, then it may have...
Forum: Careers - Employment 06-27-2018, 07:05 PM
Replies: 26
Views: 2,445
Posted By AMedActuary
I work in health and it is definitely important....

I work in health and it is definitely important. It is best to move around when you're just starting out because less will be expected of you and you will be given more time to learn. This can either...
Forum: General Actuarial 06-15-2018, 02:00 PM
Replies: 8
Views: 890
Posted By AMedActuary
Also, if you want to run this as a logistic...

Also, if you want to run this as a logistic model, you would have to change your data from the number of people in one column and number of deaths in another to all 1's and 0's. So if you have 10000...
Forum: General Actuarial 06-15-2018, 01:48 PM
Replies: 8
Views: 890
Posted By AMedActuary
You can do Binomial distribution where X ~ Bi(N,...

You can do Binomial distribution where X ~ Bi(N, p) and use the logistic regression to get "p". It's just with a high N and low p, it converges to a Poisson anyway. From Wikipedia...
Forum: General Actuarial 06-04-2018, 11:17 AM
Replies: 27
Views: 3,642
Posted By AMedActuary
Are you projecting any changes to the population?...

Are you projecting any changes to the population? Sometimes I see this exercise when we know the population will grow/shrink substantially or claims cost will go up due to an expensive new benefit or...
Forum: Software & Technology 05-31-2018, 02:55 PM
Replies: 4
Views: 478
Posted By AMedActuary
Also check out summarise_all and summarise_if. ...

Also check out summarise_all and summarise_if.

See the below:

survey %>%
group_by(sex) %>%
mutate(row_count=n()) %>%
summarise_all(mean)

A tibble: 2 x 8
Forum: General Actuarial 05-23-2018, 07:08 PM
Replies: 10
Views: 2,100
Posted By AMedActuary
I feel like you could spend a few hundred dollars...

I feel like you could spend a few hundred dollars on books and Udemy courses and learn these topics. Packt is a decent site that has sales for online access to their books as well. There's also some...
Forum: General Actuarial 05-23-2018, 02:54 PM
Replies: 3
Views: 782
Posted By AMedActuary
I think the article does a pretty good job of...

I think the article does a pretty good job of summarizing the issues. NHST shouldn't be considered the gold standard either as this article seems to imply but it is good to compare the two. With...
Forum: General Actuarial 04-13-2018, 01:15 PM
Replies: 13
Views: 1,778
Posted By AMedActuary
Ok yeah data.table is faster for this situation....

Ok yeah data.table is faster for this situation. Also, doesn't "fread" create a data.table object? So I don't think you need the "as.data.table" command but not sure on that.
Forum: General Actuarial 04-12-2018, 12:26 PM
Replies: 13
Views: 1,778
Posted By AMedActuary
What everyone else said. Also, I don't think...

What everyone else said.

Also, I don't think you need to use "fread" then convert to a data.table. That is an unnecessary step. Just use read.table to make it a data frame directly.

Also, melt...
Forum: Software & Technology 03-09-2018, 02:56 PM
Replies: 43
Views: 2,366
Posted By AMedActuary
With that workflow, it can be chronological. I...

With that workflow, it can be chronological. I think for many people on my team, their workflow consists of the following:

1. Download data using SAS/Teradata/etc. from the data warehouse. Perhaps...
Forum: Software & Technology 03-09-2018, 02:33 PM
Replies: 43
Views: 2,366
Posted By AMedActuary
Yes, for tidyverse (dplyr, ggplot2, etc.), you're...

Yes, for tidyverse (dplyr, ggplot2, etc.), you're best option is the R for Data Science (http://r4ds.had.co.nz/) book. That's the link to the online version or you can buy a physical copy from Amazon...
Forum: Software & Technology 03-07-2018, 08:35 PM
Replies: 43
Views: 2,366
Posted By AMedActuary
For me, I've been using R anywhere I can. It's...

For me, I've been using R anywhere I can. It's just turned into a one-stop shop for me. I can write SQL queries in RStudio and pull data from the data warehouse. I can join tables once I get data...
Forum: Non-Actuarial Topics 01-12-2018, 02:01 PM
Replies: 48
Views: 1,546
Posted By AMedActuary
As someone who studies philosophy and ethics on...

As someone who studies philosophy and ethics on the side, I'm not too impressed with their arguments. Granted, I haven't looked into the position much but from what I read, the arguments look pretty...
Forum: General Actuarial 01-08-2018, 08:32 PM
Replies: 10
Views: 1,616
Posted By AMedActuary
Check the ChainLadder vignette...

Check the ChainLadder vignette (https://cran.r-project.org/web/packages/ChainLadder/vignettes/ChainLadder.pdf).
Forum: Software & Technology 01-02-2018, 04:53 PM
Replies: 8
Views: 1,659
Posted By AMedActuary
I think for most things, it's pretty similar so...

I think for most things, it's pretty similar so it would just depend on your background. I wonder though does Python have a 'dplyr' equivalent for data wrangling and markdown for reporting? Being...
Forum: Non-Actuarial Personal Finance/Investing 12-29-2017, 05:33 PM
Replies: 20
Views: 2,295
Posted By AMedActuary
Also, I've had good customer service with Ally....

Also, I've had good customer service with Ally. It is easy to get them on the phone when needed and are knowledgeable. I've wired money for the down payment when buying a house from my Ally checking...
Forum: Non-Actuarial Personal Finance/Investing 12-27-2017, 04:41 PM
Replies: 20
Views: 2,295
Posted By AMedActuary
I have Ally as well. The savings account has a...

I have Ally as well. The savings account has a higher rate than the money market account. I also have an Ally checking account and write my checks from there. You can transfer money from Ally...
Forum: Health - Disability 12-05-2017, 11:36 AM
Replies: 12
Views: 1,694
Posted By AMedActuary
One thing I'm expecting is stronger pharmacy...

One thing I'm expecting is stronger pharmacy utilization management. Doctors could be incentivized to prescribe cheaper drugs if expensive ones are not needed. In some cases, consumer wouldn't notice...
Forum: Surveys 12-05-2017, 11:14 AM
Replies: 172
Views: 4,439
Posted By AMedActuary
I think we're missing some categories on the "No"...

I think we're missing some categories on the "No" side. What about those who believe in a god of some kind but don't necessarily subscribe to a particular religion? Those who say they are 'spiritual...
Forum: Health - Disability 11-17-2017, 08:41 PM
Replies: 18
Views: 2,404
Posted By AMedActuary
Some more questions: (1) Why is birth weight...

Some more questions:

(1) Why is birth weight given at all then? If that's related, ignoring it will not produce the best adjusted data.
(2) Is severity uniformly distributed for the people in the...
Showing results 1 to 25 of 300

 

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