Gregory Kanevsky grigory93
grigory93
/ 01-date32-intro.py
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July 20, 2021 03:56
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| from datetime import date | |
| import datatable as dt | |
| dt.Frame([dt.Type.date32.min, date(2021, 7, 20), dt.Type.date32.max], stype='date32') |
grigory93
/ covid-19-products-google-trends.R
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April 6, 2020 08:01
Google trends datasets for product searches during COVID-19 crisis
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| library(data.table) | |
| library(gtrendsR) | |
| library(ggplot2) | |
| library(ggthemes) | |
| # Adopted from the product list by time.com: | |
| # https://time.com/5810811/coronavirus-shopping-data/ | |
| products = c("milk", "meat", "alcohol", | |
| "cleaner", "beans", "toilet paper", | |
| "hand sanitizer", "facial tissue", "rice", |
grigory93
/ 0-covid-19-blog.R
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March 30, 2020 23:49
COVID-19 Blog visualizations using R and ggplot2
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| library(ggplot2) | |
| library(ggthemes) | |
| library(scales) |
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| # Load dai package | |
| library(dai) | |
| # Connect to Driverless AI instance | |
| dai_uri = "http://your.instance.name:12345" | |
| usr = "user_id" | |
| pwd = "password" | |
| dai.connect(uri = dai_uri, username = usr, password = pwd, force_version = FALSE) |
grigory93
/ 0-install_dai.sh
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April 18, 2020 02:33
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| #!/bin/bash | |
| # Install core packages | |
| sudo apt -y update && \ | |
| sudo apt -y --no-install-recommends install \ | |
| curl \ | |
| apt-utils \ | |
| wget \ | |
| libblas-dev \ | |
| default-jre \ |
grigory93
/ creaate-decision-tree-and-get-tree.R
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June 24, 2025 18:26
Plotting decision trees with H2O-3
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| titanic_1tree = h2o.gbm(x = predictors, y = response, | |
| training_frame = titanicHex, | |
| ntrees = 1, min_rows = 1, sample_rate = 1, col_sample_rate = 1, | |
| max_depth = 5, | |
| # use early stopping once the validation AUC doesn't improve by at least 0.01% | |
| # for 5 consecutive scoring events | |
| stopping_rounds = 3, stopping_tolerance = 0.01, | |
| stopping_metric = "AUC", | |
| seed = 1) |
grigory93
/ ggplot_mtcars_barplot.R
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September 16, 2017 22:49
How to expand color palette with ggplot and RColorBrewer
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| library(ggplot2) | |
| data(mtcars) | |
| ggplot(mtcars) + | |
| geom_bar(aes(factor(cyl), fill=factor(cyl))) |
grigory93
/ Survival Analysis in Dallas Animal Shelters using Dallas OpenData.R
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August 2, 2017 22:32
Survival Analysis in Dallas Animal Shelters using Dallas OpenData.R
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| library(RSocrata) | |
| data15.source = read.socrata(url = "https://www.dallasopendata.com/resource/8pn8-24ku.csv") | |
| data16.source = read.socrata(url = "https://www.dallasopendata.com/resource/4qfv-27du.csv") | |
| data17.source = read.socrata(url = "https://www.dallasopendata.com/resource/8849-mzxh.csv") |
grigory93
/ vacation-recap-Italy-googledocs.R
Last active
July 5, 2017 16:46
Small Data Visualization - Vacation Recap
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| library(googlesheets) | |
| library(dplyr) | |
| library(lubridate) | |
| gsh = gs_title("Rome-Siracusa-vacations") | |
| vdata = gsh %>% gs_read() | |
| vdata$ts = mdy(vdata$Date) |
grigory93
/ data-set-model-and-K-folds.R
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May 31, 2016 20:01
Running parallel jobs on Aster with R and toaster
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| library(toaster) | |
| close(conn) | |
| conn = odbcDriverConnect(connection="driver={Aster ODBC Driver};server=10.xx.xx.xx;port=2406;database=dallas;uid=beehive;pwd=beehive", | |
| interpretDot=TRUE) | |
| dallasPermitsTableInfo = getTableSummary(conn, "dallasbuildingpermits") | |
| getNumericColumns(dallasPermitsTableInfo) |
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