ROOT - ROOT Forum

Topic	Replies	Views	Activity
Posting code? Read this first! This is more addressed to the newer people of this forum, but I think it would be a good refresher for some. USE CODE TAGS!!! What is so special about these things? For one, they help show where you code begins and end…	0	9448	March 13, 2018
About the ROOT category	0	2186	January 13, 2017
Rare instance of JSROOT loading a TGraph incorrectly jsroot	3	55	August 15, 2026
RDataFrame with arrays of fixed length arrays? rdataframe	1	15	August 14, 2026
Replacing TTree I/O Traversal with Arithmetic: A Coordinate-Indexed Read Path for CMS Open Data tree , root	0	14	August 13, 2026
Issue with new root version on lxplus root	2	75	August 3, 2026
TBrowser old mode does not open TCanvas in macOS Tahoe root	3	38	July 29, 2026
Is it time for ROOT to c++ > std20? root	3	73	July 28, 2026
Bug report: TH2::Draw with option "POL" wrongly transforms the coordinate for v6.36 and later bug	11	142	July 27, 2026
Segfault when drawing canvas stored in file bug	8	93	July 24, 2026
Using ROOT with EOS files with macaroons	6	102	July 22, 2026
TBufferMerger fails to write histograms to output file for Alma Linux hist	9	171	July 21, 2026
PyROOT changed handling of multidimensional branches between ROOT 6.32 and 6.34	3	92	July 21, 2026
Using numba declare for python MVA node processing python , rdataframe	7	101	July 21, 2026
Type name error after RNTuple Merging root	8	153	July 15, 2026
Calculating median with RDataFrame?	3	77	July 13, 2026
PyROOT: differences in object ownership betweeh TH1 and TGraphErrors	1	50	July 10, 2026
Segfault with matplotlib and pyroot bug	10	105	July 9, 2026
PDG Database and Nuclei	4	383	July 9, 2026
Machine Learning on a Large Dataset using PyTorch: RDataFrame vs. uproot? python , rdataframe	4	634	July 8, 2026
Language Server for PyROOT python	3	66	July 7, 2026
Share RNTupleReader field addresses across multiple files io , tree , root	6	100	July 3, 2026
Compilation error while trying to build ROOT via source with GPU enabled	5	100	July 2, 2026
Possible bug in schema evolution with TClonesArray bug	6	94	June 30, 2026
Could something like TMapFile work with RNTuples?	2	62	June 29, 2026
Ignore fields when reading an RNTuple io , tree , root	4	78	June 25, 2026
Rescaling text with window size	9	113	June 24, 2026
Location of dropdown menu from TCanvas and context info displaced root	21	168	June 22, 2026
TChain::Add(TChain*) leaves GetEntries() reporting a wrong, too-small value tree , root	5	98	June 19, 2026
TTree::GetMinimum/GetMaximum only scan one file of a friend TChain	3	77	June 18, 2026

Posting code? Read this first!

This is more addressed to the newer people of this forum, but I think it would be a good refresher for some. USE CODE TAGS!!! What is so special about these things? For one, they help show where you code begins and end…