How to generate an ASCII file from Root file?
You might precise a bit what in a ROOT file you would like to convert into ASCII; an histogram ? graph ? a tree ? …
You can Print() the histogram
Actually I want numbers of rows and columns to generate a multiplicity plot from ASCII file. Please help me.
Actually i want number of rows and columns to generate a multiplicity plot from ASCII file. Please help me.
Hi,
I’m not sure what a multiplicity plot is.
It would be very helpful if you could provide a minimal example that shows what you would like to achieve and what went wrong with what you tried.
In any case, given a ROOT histogram, you can retrieve its contents e.g. with h->GetXAxis()->GetXbins() and at that point you can manipulate the bin contents as you wish.
Cheers,
Enrico
Thanks for your response!
Multiplicity plot is a graph of frequency of electrons VS number of electrons that I want to obtain. I have histos h1 h2 h3 so on but don’t know how to make multiplicity plot from them.
Hi,
We are a bit lost here, we don’t have enough information. What’s in your ROOT file? Please share the part of tree->Print() that’s relevant for your task. A multiplicity plot can be created from the counts of electrons, which should be part of your ROOT file. Going through ASCII is certainly not what you will want to do…
Axel.
Thanks @Axel for your response !
I want to count number of events with particular electron number and to draw electron multiplicity plot that tell me exactly how many events can produce 1,2,3 and so on electrons.
Hi @Axel this is the data that i got from root file. Now, how can i use it to draw electron multiplicity plot?
root [0]
Attaching file bakelite.root as _file0…
(TFile *) 0x55e5652f4830
root [1] h10->Draw(“hist”);
Info in TCanvas::MakeDefCanvas: created default TCanvas with name c1
root [2] h10->Print(“all”);
TH1.Print Name = h10, Entries= 1058, Total sum= 0.00207045
fSumw[0]=0, x=-0.511, error=0
fSumw[1]=1.95695e-06, x=0.511, error=1.95695e-06
fSumw[2]=0, x=1.533, error=0
fSumw[3]=0, x=2.555, error=0
fSumw[4]=0, x=3.577, error=0
fSumw[5]=0, x=4.599, error=0
fSumw[6]=1.95695e-06, x=5.621, error=1.95695e-06
fSumw[7]=0, x=6.643, error=0
fSumw[8]=1.95695e-06, x=7.665, error=1.95695e-06
fSumw[9]=1.95695e-06, x=8.687, error=1.95695e-06
fSumw[10]=3.91389e-06, x=9.709, error=2.76754e-06
fSumw[11]=0, x=10.731, error=0
fSumw[12]=3.91389e-06, x=11.753, error=2.76754e-06
fSumw[13]=1.95695e-06, x=12.775, error=1.95695e-06
fSumw[14]=0, x=13.797, error=0
fSumw[15]=1.95695e-06, x=14.819, error=1.95695e-06
fSumw[16]=0, x=15.841, error=0
fSumw[17]=0, x=16.863, error=0
fSumw[18]=3.91389e-06, x=17.885, error=2.76754e-06
fSumw[19]=1.95695e-06, x=18.907, error=1.95695e-06
fSumw[20]=5.87084e-06, x=19.929, error=3.38953e-06
fSumw[21]=0, x=20.951, error=0
fSumw[22]=1.95695e-06, x=21.973, error=1.95695e-06
fSumw[23]=0, x=22.995, error=0
fSumw[24]=0, x=24.017, error=0
fSumw[25]=0, x=25.039, error=0
fSumw[26]=1.95695e-06, x=26.061, error=1.95695e-06
fSumw[27]=3.91389e-06, x=27.083, error=2.76754e-06
fSumw[28]=0, x=28.105, error=0
fSumw[29]=1.95695e-06, x=29.127, error=1.95695e-06
fSumw[30]=5.87084e-06, x=30.149, error=3.38953e-06
fSumw[31]=1.95695e-06, x=31.171, error=1.95695e-06
fSumw[32]=3.91389e-06, x=32.193, error=2.76754e-06
fSumw[33]=0, x=33.215, error=0
fSumw[34]=3.91389e-06, x=34.237, error=2.76754e-06
fSumw[35]=1.95695e-06, x=35.259, error=1.95695e-06
fSumw[36]=1.95695e-06, x=36.281, error=1.95695e-06
fSumw[37]=1.95695e-06, x=37.303, error=1.95695e-06
fSumw[38]=0, x=38.325, error=0
fSumw[39]=5.87084e-06, x=39.347, error=3.38953e-06
fSumw[40]=1.95695e-06, x=40.369, error=1.95695e-06
fSumw[41]=3.91389e-06, x=41.391, error=2.76754e-06
fSumw[42]=1.95695e-06, x=42.413, error=1.95695e-06
fSumw[43]=1.95695e-06, x=43.435, error=1.95695e-06
fSumw[44]=0, x=44.457, error=0
fSumw[45]=0, x=45.479, error=0
fSumw[46]=1.95695e-06, x=46.501, error=1.95695e-06
fSumw[47]=1.95695e-06, x=47.523, error=1.95695e-06
fSumw[48]=5.87084e-06, x=48.545, error=3.38953e-06
fSumw[49]=3.91389e-06, x=49.567, error=2.76754e-06
fSumw[50]=3.91389e-06, x=50.589, error=2.76754e-06
fSumw[51]=3.91389e-06, x=51.611, error=2.76754e-06
fSumw[52]=1.95695e-06, x=52.633, error=1.95695e-06
fSumw[53]=5.87084e-06, x=53.655, error=3.38953e-06
fSumw[54]=3.91389e-06, x=54.677, error=2.76754e-06
fSumw[55]=3.91389e-06, x=55.699, error=2.76754e-06
fSumw[56]=5.87084e-06, x=56.721, error=3.38953e-06
fSumw[57]=3.91389e-06, x=57.743, error=2.76754e-06
fSumw[58]=7.82779e-06, x=58.765, error=3.91389e-06
fSumw[59]=9.78474e-06, x=59.787, error=4.37587e-06
fSumw[60]=0, x=60.809, error=0
fSumw[61]=5.87084e-06, x=61.831, error=3.38953e-06
fSumw[62]=0, x=62.853, error=0
fSumw[63]=3.91389e-06, x=63.875, error=2.76754e-06
fSumw[64]=7.82779e-06, x=64.897, error=3.91389e-06
fSumw[65]=5.87084e-06, x=65.919, error=3.38953e-06
fSumw[66]=5.87084e-06, x=66.941, error=3.38953e-06
fSumw[67]=5.87084e-06, x=67.963, error=3.38953e-06
fSumw[68]=5.87084e-06, x=68.985, error=3.38953e-06
fSumw[69]=0, x=70.007, error=0
fSumw[70]=1.95695e-06, x=71.029, error=1.95695e-06
fSumw[71]=1.95695e-06, x=72.051, error=1.95695e-06
fSumw[72]=7.82779e-06, x=73.073, error=3.91389e-06
fSumw[73]=3.91389e-06, x=74.095, error=2.76754e-06
fSumw[74]=7.82779e-06, x=75.117, error=3.91389e-06
fSumw[75]=3.91389e-06, x=76.139, error=2.76754e-06
fSumw[76]=7.82779e-06, x=77.161, error=3.91389e-06
fSumw[77]=7.82779e-06, x=78.183, error=3.91389e-06
fSumw[78]=5.87084e-06, x=79.205, error=3.38953e-06
fSumw[79]=0, x=80.227, error=0
fSumw[80]=1.95695e-06, x=81.249, error=1.95695e-06
fSumw[81]=1.17417e-05, x=82.271, error=4.79352e-06
fSumw[82]=3.91389e-06, x=83.293, error=2.76754e-06
fSumw[83]=1.95695e-06, x=84.315, error=1.95695e-06
fSumw[84]=5.87084e-06, x=85.337, error=3.38953e-06
fSumw[85]=1.95695e-06, x=86.359, error=1.95695e-06
fSumw[86]=5.87084e-06, x=87.381, error=3.38953e-06
fSumw[87]=3.91389e-06, x=88.403, error=2.76754e-06
fSumw[88]=7.82779e-06, x=89.425, error=3.91389e-06
fSumw[89]=9.78474e-06, x=90.447, error=4.37587e-06
fSumw[90]=3.91389e-06, x=91.469, error=2.76754e-06
fSumw[91]=3.91389e-06, x=92.491, error=2.76754e-06
fSumw[92]=5.87084e-06, x=93.513, error=3.38953e-06
fSumw[93]=1.36986e-05, x=94.535, error=5.1776e-06
fSumw[94]=3.91389e-06, x=95.557, error=2.76754e-06
fSumw[95]=0, x=96.579, error=0
fSumw[96]=1.95695e-06, x=97.601, error=1.95695e-06
fSumw[97]=7.82779e-06, x=98.623, error=3.91389e-06
fSumw[98]=1.95695e-06, x=99.645, error=1.95695e-06
fSumw[99]=0, x=100.667, error=0
fSumw[100]=5.87084e-06, x=101.689, error=3.38953e-06
fSumw[101]=3.91389e-06, x=102.711, error=2.76754e-06
fSumw[102]=3.91389e-06, x=103.733, error=2.76754e-06
fSumw[103]=1.95695e-06, x=104.755, error=1.95695e-06
fSumw[104]=3.91389e-06, x=105.777, error=2.76754e-06
fSumw[105]=1.17417e-05, x=106.799, error=4.79352e-06
fSumw[106]=7.82779e-06, x=107.821, error=3.91389e-06
fSumw[107]=9.78474e-06, x=108.843, error=4.37587e-06
fSumw[108]=1.95695e-06, x=109.865, error=1.95695e-06
fSumw[109]=9.78474e-06, x=110.887, error=4.37587e-06
fSumw[110]=9.78474e-06, x=111.909, error=4.37587e-06
fSumw[111]=7.82779e-06, x=112.931, error=3.91389e-06
fSumw[112]=3.91389e-06, x=113.953, error=2.76754e-06
fSumw[113]=5.87084e-06, x=114.975, error=3.38953e-06
fSumw[114]=1.56556e-05, x=115.997, error=5.53508e-06
fSumw[115]=7.82779e-06, x=117.019, error=3.91389e-06
fSumw[116]=5.87084e-06, x=118.041, error=3.38953e-06
fSumw[117]=3.91389e-06, x=119.063, error=2.76754e-06
fSumw[118]=3.91389e-06, x=120.085, error=2.76754e-06
fSumw[119]=3.91389e-06, x=121.107, error=2.76754e-06
fSumw[120]=1.17417e-05, x=122.129, error=4.79352e-06
fSumw[121]=3.91389e-06, x=123.151, error=2.76754e-06
fSumw[122]=5.87084e-06, x=124.173, error=3.38953e-06
fSumw[123]=9.78474e-06, x=125.195, error=4.37587e-06
fSumw[124]=3.91389e-06, x=126.217, error=2.76754e-06
fSumw[125]=7.82779e-06, x=127.239, error=3.91389e-06
fSumw[126]=9.78474e-06, x=128.261, error=4.37587e-06
fSumw[127]=7.82779e-06, x=129.283, error=3.91389e-06
fSumw[128]=5.87084e-06, x=130.305, error=3.38953e-06
fSumw[129]=7.82779e-06, x=131.327, error=3.91389e-06
fSumw[130]=9.78474e-06, x=132.349, error=4.37587e-06
fSumw[131]=9.78474e-06, x=133.371, error=4.37587e-06
fSumw[132]=9.78474e-06, x=134.393, error=4.37587e-06
fSumw[133]=5.87084e-06, x=135.415, error=3.38953e-06
fSumw[134]=1.17417e-05, x=136.437, error=4.79352e-06
fSumw[135]=9.78474e-06, x=137.459, error=4.37587e-06
fSumw[136]=1.76125e-05, x=138.481, error=5.87084e-06
fSumw[137]=5.87084e-06, x=139.503, error=3.38953e-06
fSumw[138]=0, x=140.525, error=0
fSumw[139]=1.17417e-05, x=141.547, error=4.79352e-06
fSumw[140]=9.78474e-06, x=142.569, error=4.37587e-06
fSumw[141]=0, x=143.591, error=0
fSumw[142]=3.91389e-06, x=144.613, error=2.76754e-06
fSumw[143]=5.87084e-06, x=145.635, error=3.38953e-06
fSumw[144]=1.95695e-06, x=146.657, error=1.95695e-06
fSumw[145]=5.87084e-06, x=147.679, error=3.38953e-06
fSumw[146]=7.82779e-06, x=148.701, error=3.91389e-06
fSumw[147]=7.82779e-06, x=149.723, error=3.91389e-06
fSumw[148]=7.82779e-06, x=150.745, error=3.91389e-06
fSumw[149]=3.91389e-06, x=151.767, error=2.76754e-06
fSumw[150]=3.91389e-06, x=152.789, error=2.76754e-06
fSumw[151]=3.91389e-06, x=153.811, error=2.76754e-06
fSumw[152]=1.95695e-06, x=154.833, error=1.95695e-06
fSumw[153]=1.36986e-05, x=155.855, error=5.1776e-06
fSumw[154]=9.78474e-06, x=156.877, error=4.37587e-06
fSumw[155]=9.78474e-06, x=157.899, error=4.37587e-06
fSumw[156]=5.87084e-06, x=158.921, error=3.38953e-06
fSumw[157]=9.78474e-06, x=159.943, error=4.37587e-06
fSumw[158]=3.91389e-06, x=160.965, error=2.76754e-06
fSumw[159]=9.78474e-06, x=161.987, error=4.37587e-06
fSumw[160]=5.87084e-06, x=163.009, error=3.38953e-06
fSumw[161]=1.95695e-06, x=164.031, error=1.95695e-06
fSumw[162]=7.82779e-06, x=165.053, error=3.91389e-06
fSumw[163]=1.17417e-05, x=166.075, error=4.79352e-06
fSumw[164]=1.95695e-06, x=167.097, error=1.95695e-06
fSumw[165]=9.78474e-06, x=168.119, error=4.37587e-06
fSumw[166]=3.91389e-06, x=169.141, error=2.76754e-06
fSumw[167]=7.82779e-06, x=170.163, error=3.91389e-06
fSumw[168]=3.91389e-06, x=171.185, error=2.76754e-06
fSumw[169]=5.87084e-06, x=172.207, error=3.38953e-06
fSumw[170]=1.17417e-05, x=173.229, error=4.79352e-06
fSumw[171]=1.17417e-05, x=174.251, error=4.79352e-06
fSumw[172]=5.87084e-06, x=175.273, error=3.38953e-06
fSumw[173]=7.82779e-06, x=176.295, error=3.91389e-06
fSumw[174]=1.76125e-05, x=177.317, error=5.87084e-06
fSumw[175]=1.95695e-06, x=178.339, error=1.95695e-06
fSumw[176]=1.17417e-05, x=179.361, error=4.79352e-06
fSumw[177]=1.17417e-05, x=180.383, error=4.79352e-06
fSumw[178]=1.76125e-05, x=181.405, error=5.87084e-06
fSumw[179]=1.56556e-05, x=182.427, error=5.53508e-06
fSumw[180]=1.56556e-05, x=183.449, error=5.53508e-06
fSumw[181]=5.87084e-06, x=184.471, error=3.38953e-06
fSumw[182]=9.78474e-06, x=185.493, error=4.37587e-06
fSumw[183]=1.95695e-06, x=186.515, error=1.95695e-06
fSumw[184]=3.91389e-06, x=187.537, error=2.76754e-06
fSumw[185]=7.82779e-06, x=188.559, error=3.91389e-06
fSumw[186]=9.78474e-06, x=189.581, error=4.37587e-06
fSumw[187]=9.78474e-06, x=190.603, error=4.37587e-06
fSumw[188]=1.17417e-05, x=191.625, error=4.79352e-06
fSumw[189]=9.78474e-06, x=192.647, error=4.37587e-06
fSumw[190]=7.82779e-06, x=193.669, error=3.91389e-06
fSumw[191]=1.36986e-05, x=194.691, error=5.1776e-06
fSumw[192]=9.78474e-06, x=195.713, error=4.37587e-06
fSumw[193]=5.87084e-06, x=196.735, error=3.38953e-06
fSumw[194]=7.82779e-06, x=197.757, error=3.91389e-06
fSumw[195]=1.95695e-06, x=198.779, error=1.95695e-06
fSumw[196]=1.95695e-06, x=199.801, error=1.95695e-06
fSumw[197]=1.95695e-06, x=200.823, error=1.95695e-06
fSumw[198]=5.87084e-06, x=201.845, error=3.38953e-06
fSumw[199]=7.82779e-06, x=202.867, error=3.91389e-06
fSumw[200]=1.17417e-05, x=203.889, error=4.79352e-06
fSumw[201]=3.91389e-06, x=204.911, error=2.76754e-06
fSumw[202]=1.17417e-05, x=205.933, error=4.79352e-06
fSumw[203]=3.91389e-06, x=206.955, error=2.76754e-06
fSumw[204]=5.87084e-06, x=207.977, error=3.38953e-06
fSumw[205]=5.87084e-06, x=208.999, error=3.38953e-06
fSumw[206]=9.78474e-06, x=210.021, error=4.37587e-06
fSumw[207]=1.17417e-05, x=211.043, error=4.79352e-06
fSumw[208]=7.82779e-06, x=212.065, error=3.91389e-06
fSumw[209]=5.87084e-06, x=213.087, error=3.38953e-06
fSumw[210]=1.17417e-05, x=214.109, error=4.79352e-06
fSumw[211]=7.82779e-06, x=215.131, error=3.91389e-06
fSumw[212]=1.36986e-05, x=216.153, error=5.1776e-06
fSumw[213]=7.82779e-06, x=217.175, error=3.91389e-06
fSumw[214]=9.78474e-06, x=218.197, error=4.37587e-06
fSumw[215]=9.78474e-06, x=219.219, error=4.37587e-06
fSumw[216]=2.15264e-05, x=220.241, error=6.49046e-06
fSumw[217]=5.87084e-06, x=221.263, error=3.38953e-06
fSumw[218]=5.87084e-06, x=222.285, error=3.38953e-06
fSumw[219]=7.82779e-06, x=223.307, error=3.91389e-06
fSumw[220]=5.87084e-06, x=224.329, error=3.38953e-06
fSumw[221]=9.78474e-06, x=225.351, error=4.37587e-06
fSumw[222]=9.78474e-06, x=226.373, error=4.37587e-06
fSumw[223]=1.56556e-05, x=227.395, error=5.53508e-06
fSumw[224]=1.17417e-05, x=228.417, error=4.79352e-06
fSumw[225]=1.76125e-05, x=229.439, error=5.87084e-06
fSumw[226]=5.87084e-06, x=230.461, error=3.38953e-06
fSumw[227]=9.78474e-06, x=231.483, error=4.37587e-06
fSumw[228]=1.76125e-05, x=232.505, error=5.87084e-06
fSumw[229]=5.87084e-06, x=233.527, error=3.38953e-06
fSumw[230]=1.56556e-05, x=234.549, error=5.53508e-06
fSumw[231]=1.17417e-05, x=235.571, error=4.79352e-06
fSumw[232]=9.78474e-06, x=236.593, error=4.37587e-06
fSumw[233]=5.87084e-06, x=237.615, error=3.38953e-06
fSumw[234]=1.17417e-05, x=238.637, error=4.79352e-06
fSumw[235]=9.78474e-06, x=239.659, error=4.37587e-06
fSumw[236]=5.87084e-06, x=240.681, error=3.38953e-06
fSumw[237]=1.95695e-06, x=241.703, error=1.95695e-06
fSumw[238]=1.17417e-05, x=242.725, error=4.79352e-06
fSumw[239]=1.17417e-05, x=243.747, error=4.79352e-06
fSumw[240]=1.36986e-05, x=244.769, error=5.1776e-06
fSumw[241]=7.82779e-06, x=245.791, error=3.91389e-06
fSumw[242]=9.78474e-06, x=246.813, error=4.37587e-06
fSumw[243]=7.82779e-06, x=247.835, error=3.91389e-06
fSumw[244]=1.76125e-05, x=248.857, error=5.87084e-06
fSumw[245]=1.17417e-05, x=249.879, error=4.79352e-06
fSumw[246]=5.87084e-06, x=250.901, error=3.38953e-06
fSumw[247]=1.17417e-05, x=251.923, error=4.79352e-06
fSumw[248]=1.36986e-05, x=252.945, error=5.1776e-06
fSumw[249]=1.95695e-06, x=253.967, error=1.95695e-06
fSumw[250]=9.78474e-06, x=254.989, error=4.37587e-06
fSumw[251]=1.56556e-05, x=256.011, error=5.53508e-06
fSumw[252]=0, x=257.033, error=0
fSumw[253]=1.76125e-05, x=258.055, error=5.87084e-06
fSumw[254]=3.91389e-06, x=259.077, error=2.76754e-06
fSumw[255]=5.87084e-06, x=260.099, error=3.38953e-06
fSumw[256]=3.91389e-06, x=261.121, error=2.76754e-06
fSumw[257]=1.36986e-05, x=262.143, error=5.1776e-06
fSumw[258]=7.82779e-06, x=263.165, error=3.91389e-06
fSumw[259]=1.36986e-05, x=264.187, error=5.1776e-06
fSumw[260]=5.87084e-06, x=265.209, error=3.38953e-06
fSumw[261]=3.91389e-06, x=266.231, error=2.76754e-06
fSumw[262]=9.78474e-06, x=267.253, error=4.37587e-06
fSumw[263]=1.17417e-05, x=268.275, error=4.79352e-06
fSumw[264]=3.91389e-06, x=269.297, error=2.76754e-06
fSumw[265]=1.17417e-05, x=270.319, error=4.79352e-06
fSumw[266]=9.78474e-06, x=271.341, error=4.37587e-06
fSumw[267]=5.87084e-06, x=272.363, error=3.38953e-06
fSumw[268]=7.82779e-06, x=273.385, error=3.91389e-06
fSumw[269]=9.78474e-06, x=274.407, error=4.37587e-06
fSumw[270]=1.56556e-05, x=275.429, error=5.53508e-06
fSumw[271]=1.17417e-05, x=276.451, error=4.79352e-06
fSumw[272]=1.17417e-05, x=277.473, error=4.79352e-06
fSumw[273]=5.87084e-06, x=278.495, error=3.38953e-06
fSumw[274]=3.91389e-06, x=279.517, error=2.76754e-06
fSumw[275]=1.76125e-05, x=280.539, error=5.87084e-06
fSumw[276]=1.17417e-05, x=281.561, error=4.79352e-06
fSumw[277]=3.91389e-06, x=282.583, error=2.76754e-06
fSumw[278]=3.91389e-06, x=283.605, error=2.76754e-06
fSumw[279]=7.82779e-06, x=284.627, error=3.91389e-06
fSumw[280]=3.91389e-06, x=285.649, error=2.76754e-06
fSumw[281]=3.91389e-06, x=286.671, error=2.76754e-06
fSumw[282]=1.95695e-06, x=287.693, error=1.95695e-06
fSumw[283]=3.91389e-06, x=288.715, error=2.76754e-06
fSumw[284]=3.91389e-06, x=289.737, error=2.76754e-06
fSumw[285]=7.82779e-06, x=290.759, error=3.91389e-06
fSumw[286]=0, x=291.781, error=0
fSumw[287]=7.82779e-06, x=292.803, error=3.91389e-06
fSumw[288]=7.82779e-06, x=293.825, error=3.91389e-06
fSumw[289]=5.87084e-06, x=294.847, error=3.38953e-06
fSumw[290]=3.91389e-06, x=295.869, error=2.76754e-06
fSumw[291]=9.78474e-06, x=296.891, error=4.37587e-06
fSumw[292]=3.91389e-06, x=297.913, error=2.76754e-06
fSumw[293]=7.82779e-06, x=298.935, error=3.91389e-06
fSumw[294]=3.91389e-06, x=299.957, error=2.76754e-06
fSumw[295]=1.17417e-05, x=300.979, error=4.79352e-06
fSumw[296]=0, x=302.001, error=0
fSumw[297]=9.78474e-06, x=303.023, error=4.37587e-06
fSumw[298]=5.87084e-06, x=304.045, error=3.38953e-06
fSumw[299]=0, x=305.067, error=0
fSumw[300]=5.87084e-06, x=306.089, error=3.38953e-06
fSumw[301]=9.78474e-06, x=307.111, error=4.37587e-06
fSumw[302]=5.87084e-06, x=308.133, error=3.38953e-06
fSumw[303]=3.91389e-06, x=309.155, error=2.76754e-06
fSumw[304]=3.91389e-06, x=310.177, error=2.76754e-06
fSumw[305]=5.87084e-06, x=311.199, error=3.38953e-06
fSumw[306]=3.91389e-06, x=312.221, error=2.76754e-06
fSumw[307]=9.78474e-06, x=313.243, error=4.37587e-06
fSumw[308]=7.82779e-06, x=314.265, error=3.91389e-06
fSumw[309]=5.87084e-06, x=315.287, error=3.38953e-06
fSumw[310]=2.15264e-05, x=316.309, error=6.49046e-06
fSumw[311]=1.95695e-06, x=317.331, error=1.95695e-06
fSumw[312]=3.91389e-06, x=318.353, error=2.76754e-06
fSumw[313]=5.87084e-06, x=319.375, error=3.38953e-06
fSumw[314]=3.91389e-06, x=320.397, error=2.76754e-06
fSumw[315]=9.78474e-06, x=321.419, error=4.37587e-06
fSumw[316]=1.95695e-06, x=322.441, error=1.95695e-06
fSumw[317]=1.95695e-06, x=323.463, error=1.95695e-06
fSumw[318]=5.87084e-06, x=324.485, error=3.38953e-06
fSumw[319]=0, x=325.507, error=0
fSumw[320]=3.91389e-06, x=326.529, error=2.76754e-06
fSumw[321]=0, x=327.551, error=0
fSumw[322]=1.95695e-06, x=328.573, error=1.95695e-06
fSumw[323]=1.95695e-06, x=329.595, error=1.95695e-06
fSumw[324]=0, x=330.617, error=0
fSumw[325]=0, x=331.639, error=0
fSumw[326]=1.95695e-06, x=332.661, error=1.95695e-06
fSumw[327]=1.95695e-06, x=333.683, error=1.95695e-06
fSumw[328]=1.95695e-06, x=334.705, error=1.95695e-06
fSumw[329]=0, x=335.727, error=0
fSumw[330]=0, x=336.749, error=0
fSumw[331]=0, x=337.771, error=0
fSumw[332]=0, x=338.793, error=0
fSumw[333]=0, x=339.815, error=0
fSumw[334]=0, x=340.837, error=0
fSumw[335]=0, x=341.859, error=0
fSumw[336]=0, x=342.881, error=0
fSumw[337]=0, x=343.903, error=0
fSumw[338]=0, x=344.925, error=0
fSumw[339]=0, x=345.947, error=0
fSumw[340]=0, x=346.969, error=0
fSumw[341]=0, x=347.991, error=0
fSumw[342]=0, x=349.013, error=0
fSumw[343]=0, x=350.035, error=0
fSumw[344]=0, x=351.057, error=0
fSumw[345]=0, x=352.079, err
Hi,
take a look at our histogram and TTree tutorials: https://root.cern/doc/master/group__Tutorials.html .
They show how to read data from a ROOT file and plot histograms.
Alternatively RDataFrame offers a higher-level interface to do the same (tutorials here).
For a quick overview of some different ways you can read ROOT files in ROOT, you can check out this previous post, or also search the forum.
Cheers,
Enrico