Ajay Ohri

Ajay Ohri has asked 6 questions and find answers to 11 problems.

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About

http://about.me/aohri

I am a data scientist with a startup at http://decisionstats.org I have written two books on R. R for Cloud Computing and R for Business Analytics. I blog at DecisionStats.com

Ajay Ohri questions

How to do a crosstab with two categorical variables but populate it with the mean of the third variable
Is there a way to guess the size of data.frame based on rows, columns and variable types?
Using BigQuery with R for Analyzing Data
How do I read my Google Location History in R

Ajay Ohri answers

Conditional filtering of pandas data frame
Speed up plot() function for large dataset
How to perform logical operators through indexing in data.table at R?
r strptime (R version 3.2.2 )
Calculate column sums for each combination of two grouping variables [duplicate]
What is the meaning of the "local data frame" message from `dplyr:::print.tbl_df`?
Installing R on Android
Extract year from date
How do I do a jointplot in R the same way as I do it python (seaborn package)