Irene Helenowski's Blog, page 7

How about an AIC poem?

Models many we fit,

But how to choose which it is,

We look at likelihood and the like,

One with a certain value, our interests spike.

 

Take the AIC where you want the lowest,

So a few ones, you put to this test.

And what may the final model help us to predict?

From which dimension should Anton Randy evict.

 

And because summer is coming …

 

New Poem about ANOVA

So you have groups, more than two,

If they differ, what are you to do?

Maybe apply the F-statistic if need be,

Do different dimensions really differ you see?

 

Take Randy’s cast and what he does best.

He might have to know how to use the F-test.

To catch Anton it is just a must.

And this would be a good script at table reads, I trust.

 

Yeah, still thinking about doing table readings. What can you do?

Poem on the Lurie Goldberg algorithm!

Generate data you must,

But the joint distribution can’t always trust,

Still individual variables are there,

And pairwise correlations if you care.

 

So combine the two and see what you get,

If the algorithm converges, you’re all set.

Based on the criteria of correlations.

And if it does, we celebrate!

 

See? Celebrate!

How about an excerpt this week

Yes? Okay, here you go!

Bootstrapping poem

Sometimes you get this,

Sometimes that,

Sometimes the same thing,

Because you put the card back in the hat.

 

Thus we have bootstrapping,

Quite simple, you say,

Yes, and it might help Randy get Anton too.

Now wouldn’t that just make your day.

 

Another poem about … multiple imputation?

 

Yeah, maybe kind of deep.  I’ll lighten up next week.

Progression with regression: a poem

To predict on several factors,

Let a regression line show you the way,

It may just have for what it takes,

For Randy to say the day.

 

Climate, location, occupation,

Throw them in to see what you get.

You might be pleasantly surprised,

To see what you predict is all set.

 

Poem about the signed-rank test

 

1 person, 2 worlds,

But are they the same?

Take the difference and see if they are.

Only by their name.

 

We then apply the signed rank test.

To see who different they are.

But did handsome, heroic Randy did that?

You’ll find out here if he got that far.

Something different …

An actual excerpt from one of my actual books that my actually lovely assistant, Jessi Sawa, made.

 

Anyway, more stats next time!

 

Back next week …

Until then — if you need something for your Easter basket …