From 8148484e42e7a183cadb54b2d9631fba1ff96550 Mon Sep 17 00:00:00 2001
From: Danilo Piparo <danilo.piparo@cern.ch>
Date: Thu, 4 Apr 2019 14:08:32 +0200
Subject: [PATCH] [Tutorials] CsvDS: download csv in the macro and not in CMake
---
tutorials/dataframe/df015_LazyDataSource.C | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/tutorials/dataframe/df015_LazyDataSource.C b/tutorials/dataframe/df015_LazyDataSource.C
index 3b9ba3ddfc1..fc5567b5bd9 100644
--- a/tutorials/dataframe/df015_LazyDataSource.C
+++ b/tutorials/dataframe/df015_LazyDataSource.C
@@ -23,14 +23,17 @@ int df015_LazyDataSource()
// Let's first create a RDF that will read from the CSV file.
// See the tutorial relative to CSV data sources for more details!
- auto fileName = "df014_CsvDataSource_MuRun2010B.csv";
- auto csv_tdf = MakeCsvDataFrame(fileName);
+ auto fileNameUrl = "http://root.cern.ch/files/tutorials/df014_CsvDataSource_MuRun2010B.csv";
+ auto fileName = "df015_CsvDataSource_MuRun2010B.csv";
+ TFile::Cp(fileNameUrl, fileName);
+
+ auto csv_rdf = MakeCsvDataFrame(fileName);
// Now we take out four columns: px and py of the first muon in the muon pair
std::string px1Name = "px1";
- auto px1 = csv_tdf.Take<double>(px1Name);
+ auto px1 = csv_rdf.Take<double>(px1Name);
std::string py1Name = "py1";
- auto py1 = csv_tdf.Take<double>(py1Name);
+ auto py1 = csv_rdf.Take<double>(py1Name);
// Now we create a new dataframe built on top of the columns above. Note that up to now, no event loop
// has been carried out!
--
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