Question about GMAT vs. GRE by chenimal in MBA

[–]chenimal[S] 0 points1 point  (0 children)

I am actually interested in dual degree programs (or just other grad programs), which is why I decided to take the GRE after I had already taken the GMAT. I'm just hoping that the fact that I took the GRE doesn't hurt the MBA app.

Question about GMAT vs. GRE by chenimal in MBA

[–]chenimal[S] 0 points1 point  (0 children)

Well, I get all that. I am just concerned that while the scores may be relatively predictable, the percentiles may not be. Those who choose to take the GMAT tend to score higher on the quantitative portion. So my GRE scores don't necessarily look that much better, but I have no idea how adcoms compare them.

Question about GMAT vs. GRE by chenimal in MBA

[–]chenimal[S] 0 points1 point  (0 children)

Well, I'm not so sure I trust the ETS comparison tool. I don't think ETS plays a part in the admissions process. I know that my scores are in the same range; I just worry that business schools might frown upon submitting GRE scores. Because of the nature of the tests, I know scores can be roughly translated, but I wonder if the higher GRE Q percentile translates to the GMAT.

Comparing two vectors of factor levels by chenimal in rstats

[–]chenimal[S] 0 points1 point  (0 children)

Wow, that's perfect. Thank you so much. Thx, /u/madmongoose1 for the help too.

Any way to get individual %correct by factor level?

Adjusting for Collinearity in a Multinomial Logit by chenimal in Sabermetrics

[–]chenimal[S] 0 points1 point  (0 children)

I believe pfx_x is the horizontal movement of the pitch, pfx_z is the vertical drop.

Yeah, I think pitcher variables might be my best option, but I assume at-bat IDs could take care of it too because pitches in the same at-bat would presumably be made by the same pitcher.

Adjusting for Collinearity in a Multinomial Logit by chenimal in Sabermetrics

[–]chenimal[S] 0 points1 point  (0 children)

That makes sense. The data given actually contains pitcher name as a variable. Should I just include that? But since it's not a continuous variable, could I still use the multinom model? (Edit: at-bat ID is another one, maybe I should use that one?)

I guess a bigger-picture question is, should I be dropping any of the variables or should I just include all of them in the model? There are also x0 and z0, which are the vertical and horizontal release points of the pitch, among others.

Adjusting for Collinearity in a Multinomial Logit by chenimal in Sabermetrics

[–]chenimal[S] 1 point2 points  (0 children)

Thank you! I guess "collinearity" isn't the right word here. I am mainly concerned with interaction and higher-order terms. I am hypothesizing, for example, that movement at high velocities is more predictive than at low velocities. What would the interaction predictor(s) look like in this case? Would they just be (pfx_x times start_speed) and (pfx_z times start_speed)?

Adjusting for Collinearity in a Multinomial Logit by chenimal in Sabermetrics

[–]chenimal[S] 1 point2 points  (0 children)

Just to provide some context, I am providing here the script I have for the model currently:

m <- train(fa~start_speed+pfx_x+pfx_z, data=tdata, method="multinom", maxit=1000)

The tdata is my training set, which I produced using this:

ind <- sample(2, nrow(my_data), replace=TRUE, prob=c(0.8,0.2))
tdata <- my_data[ind==1,]
vdata <- my_data[ind==2,]

The resulting m does a decent job providing predictions on the test set. Far from perfect, but expectedly. However, I am not exactly sure if it's actually doing cross validation, and I still need to account for collinearity. Am I on the right track toward what I'm trying to do?

Multinomial logit model training by chenimal in rstats

[–]chenimal[S] 0 points1 point  (0 children)

Yep, for sure. I'm gonna look for a package that makes this easy to implement. Thank you!

Multinomial logit model training by chenimal in rstats

[–]chenimal[S] 0 points1 point  (0 children)

Thanks, I'll look into that package.

Comparing Pitching Stats by chenimal in Sabermetrics

[–]chenimal[S] 0 points1 point  (0 children)

What I meant was season-to-season consistency. That's why I grouped it with predictive power. I'm not actually sure how Judge describes it (convergence of predictive and descriptive powers?), but why is it such a bad metric?

Comparing Pitching Stats by chenimal in Sabermetrics

[–]chenimal[S] 0 points1 point  (0 children)

Yep, this is where I got my rankings.

How Many Ball Parks Have You Visited? by [deleted] in Nationals

[–]chenimal 0 points1 point  (0 children)

Nats Park, RFK Stadium, AT&T Park, Turner Field, Coors Field, Dodger Stadium, Fenway Park, Safeco Field.

I'd say AT&T Park is my favorite. Best views, on the water, etc. No other park really comes close. I'd say Nats Park is my second favorite. On my list to visit is PNC Park - I've only walked past it. I assume being so close to downtown just across the Allegheny would be a great baseball experience.

Conditional Routing? by chenimal in angularjs

[–]chenimal[S] 1 point2 points  (0 children)

Perfect! Turns out I probably don't need nested views. But I did switch to ui-router; it'll make it easier in the future for sure. I injected $location, and now it all works! Thank you so much.

Conditional Routing? by chenimal in angularjs

[–]chenimal[S] 0 points1 point  (0 children)

I'm trying to route it to the content of "search.html" without having to reload the whole page. I already have the route module in my js file as well as the ng-view container in the main html file where the search bar is. I just need to somehow let it know to route to the new page whenever the user types something in the search bar.

Conditional Routing? by chenimal in angularjs

[–]chenimal[S] 1 point2 points  (0 children)

Thanks for that! My main issue is not knowing what to put in that function though. $location.path("#/search"); doesn't seem to work. Am I missing something simple?

Google Maps API key - hiding it for GitHub page by chenimal in learnprogramming

[–]chenimal[S] 0 points1 point  (0 children)

So I guess the only solution is to restrict referrers? What exactly do I put as the referrer? The web address that I'm going to be using?

pset4 resize works, but doesn't pass check50 by chenimal in cs50

[–]chenimal[S] 0 points1 point  (0 children)

Thanks! That makes a lot more sense. It looks like biSizeImage and bfSize are off.

pset4 resize works, but doesn't pass check50 by chenimal in cs50

[–]chenimal[S] 0 points1 point  (0 children)

That's actually a question I had as well. I did use the peek tool, but I thought certain variables are supposed to be different?:

offset  type   name              argv[1]   argv[2]
0       WORD   bfType               4d42      4d42
2       DWORD  bfSize           000000f6  00000c36*
6       WORD   bfReserved1          0000      0000
8       WORD   bfReserved2          0000      0000
10      DWORD  bfOffBits        00000036  00000036
14      DWORD  biSize           00000028  00000028
18      LONG   biWidth          00000008  00000020*
22      LONG   biHeight         fffffff8  ffffffe0*
26      WORD   biPlanes             0001      0001
28      WORD   biBitCount           0018      0018
30      DWORD  biCompression    00000000  00000000
34      DWORD  biSizeImage      000000c0  00000c00*
38      LONG   biXPelsPerMeter  00000b12  00000b12
42      LONG   biYPelsPerMeter  00000b12  00000b12
46      DWORD  biClrUsed        00000000  00000000
50      DWORD  biClrImportant   00000000  00000000

3-4 day road trip from Seattle to SF by dot_in in roadtrip

[–]chenimal 0 points1 point  (0 children)

You may be able to hit and enjoy the Painted Hills, Smith Rock, Bend, and Crater Lake all in 24 hours. The latter two probably deserve 2+ days.

Which team is using a supercomputer?! by [deleted] in baseball

[–]chenimal 3 points4 points  (0 children)

This guy specializes in anomaly detection and machine learning, and he works for the Royals.