6,958 reputation
1431
bio website thinkinator.com
location Washington DC, United States
age
visits member for 3 years, 5 months
seen 3 hours ago

Long-time R user, new Stata user, occasional Stan user, and currently learning Scala. Data Scientist at ERI, an incredible company where we do everything from fraud detection and visualization, to training and and text mining.


3h
comment How Can I Make Sure All My .CSV Data Gets Imported as NA instead of Blank in R?
No, your vectors appear to be of a different length. It's impossible for me to tell how they got this way. Your suggestion is the opposite of the correct answer and may be how you got in trouble. If you don't know the sixth person's age, you need an NA in age[6], so that age[7] will still correspond to sex[7]. If you remove NA's, age[7] will correspond to sex[6].
3h
comment How Can I Make Sure All My .CSV Data Gets Imported as NA instead of Blank in R?
The error you got in your cbind needs to be addressed. Evidently your four vectors are not the same length, so you're probably ending up with an $x$ that's not what you think it is.
4h
answered What will be the process of statistical analysis with Survey data?
4h
comment What does “fiducial” mean (in the context of statistics)?
+1 As far as I understand it, Fisher was trying to plant the Bayesian credible interval in his frequentist garden. (He famously despised the Bayesian approach and I believe even coined the term "Bayesian" as an expression of his contempt.)
5h
awarded  Mortarboard
8h
awarded  Nice Answer
9h
comment What exactly does it mean to 'pool data'?
+1 Very nice distinction!
10h
answered What does 'highly non linear' mean?
2d
comment Identifying distribution of a variable
Do you have any theoretical basis for the expected density or are you just trying to fit any distribution to your data? Also, what do you want to do/conclude once you have this distribution? Last, how much data does this graph represent?
2d
comment A tool to analyze multidimensional tabular data
I don't see how you can do what you want without coding. Your questions sound quite flexible, and can include logical multiple steps. It feels like Excel's Pivot Tables could answer some of your questions if you're willing to use a sticky note to keep track if intermediate results.
Apr
9
answered Non-linear projection in self organizing maps
Apr
7
awarded  Nice Answer
Mar
26
comment Simple “yes / no” question. Uncertain how to analyze the results
Basically, I'm using the Beta distribution, which is a curve that is used in statistics to reflect a distribution between 0 and 1 (0% and 100%). You don't need any of this if your reply to Glen_b's comment is totally correct. But what I've done is useful if you want to talk about a range of percentages that your sample might imply, at which point you or your boss or someone can decide if that's a "significant" number of missing entries. (I.e. if something needs to be done about it.)
Mar
25
revised Simple “yes / no” question. Uncertain how to analyze the results
added 352 characters in body
Mar
25
revised Simple “yes / no” question. Uncertain how to analyze the results
added 352 characters in body
Mar
25
revised Simple “yes / no” question. Uncertain how to analyze the results
added 352 characters in body
Mar
25
answered Simple “yes / no” question. Uncertain how to analyze the results
Mar
16
comment Time series trend
You mention analysis but it's not clear what you actually want to do.
Mar
11
awarded  Excavator
Mar
11
revised The prestige magician paradox
added 19 characters in body