sqldf - Manipulate R Data Frames Using SQL
The sqldf() function is typically passed a single argument which is an SQL select statement where the table names are ordinary R data frame names. sqldf() transparently sets up a database, imports the data frames into that database, performs the SQL select or other statement and returns the result using a heuristic to determine which class to assign to each column of the returned data frame. The sqldf() or read.csv.sql() functions can also be used to read filtered files into R even if the original files are larger than R itself can handle. 'RSQLite', 'RH2', 'RMySQL' and 'RPostgreSQL' backends are supported.
Last updated 3 years ago
13.00 score 250 stars 52 dependents 8.1k scripts 21k downloadsnls2 - Non-Linear Regression with Brute Force
Adds brute force and multiple starting values to nls.
Last updated 7 months ago
6.99 score 4 stars 16 dependents 203 scripts 2.5k downloads