Tomas Greif

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Tomas Greif has asked 61 questions and find answers to 33 problems.

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Tomas Greif questions

Convert escaped Unicode character back to actual character in PostgreSQL
Filter data frame based on multiple conditions in another data frame
Generate series of dates - using date type as input
bestglm alternatives for dataset with many variables
Determine if data frame is empty
Aggregate() with more functions -
Print integer vector from Rcpp function
RStudio - render html content in viewer pane
Dark background of tabs in Eclipse
Install rgdal library in rstudio - GDALAllRegister not found in libgdal

Tomas Greif answers

Dynamic SQL Query in R (WHERE)
Group by floating date range
Select data for 15 minute windows - PostgreSQL
Postgresql k-nearest neighbor (KNN) on multidimensional cube
Calculating the Weighted Average Cost of products stock
postgres random using setseed
Typo in `dplyr::percent_rank`?
How to create a database that shows a calendar of availability for a set of apartments?
OLAP - Calculate run-off triangles, sample data and cube included (PostgreSQL/Mondrian)
Calendar table for Data Warehouse