Error Bands Root
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installing and running ROOT here. Please post bug reports in Jira. Moderator: rootdev Post Reply Search Advanced search First unread post • 9 posts • Page 1 of 1 maikenp Posts: 172 Joined: error bands for impulse responses Sun Nov 25, 2007 20:58 color on error bands on TH1 histogram Quote
Error Bands Excel
Unread postby maikenp » Wed Nov 10, 2010 10:41 Hi, I wonder if it is possible to set a specific color
Root Error Bars
and fill on the error band of a TH1F histogram, using the error draw option e2. I would like to show the histogram with line in one color and no fill, and the error band,
Root Histogram Error Bars
let's say in a grey hashed shade over the histogram. ThanksMaiken Top couet Posts: 7270 Joined: Tue Sep 02, 2003 9:32 Location: CERN Contact: Contact couet Website Re: color on error bands on TH1 histogram Quote Unread postby couet » Wed Nov 10, 2010 10:45 Draw first the error band and then the histogram on top as a line using the option SAME. Olivier Couet - CERN/EP/SFT Top maikenp Posts: root setfillstyle 172 Joined: Sun Nov 25, 2007 20:58 Re: color on error bands on TH1 histogram Quote Unread postby maikenp » Wed Nov 10, 2010 11:00 Hi, thanks for your reply.You mean I should set the histogram fillcolor and fillstyle, and that the error band then will use this automatically? My experience is that I instead do not only get colors and fills on the error band, but the rest of the histogram also, and this is what I want to avoid. Any solution for this? I.e let's say a histogram without fill, and with let's say blue line, and an errorband on this histogram which is hashed grey. ThanksMaiken Top couet Posts: 7270 Joined: Tue Sep 02, 2003 9:32 Location: CERN Contact: Contact couet Website Re: color on error bands on TH1 histogram Quote Unread postby couet » Wed Nov 10, 2010 11:08 If you what to draw the same histogram on the same picture with different TAttFill attributes you have to Clone this histogram and set the different attributes on each instance of the histogram.But I understood you want to first draw a filled area (the band) on which the TAttFill attributes apply, and then you want to draw the histogram as a line on whi
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Though no one of these measurements are likely to be more precise than any other, this group of values, it is hoped, will cluster about the true value you are trying to measure. This distribution https://www.ncsu.edu/labwrite/res/gt/gt-stat-home.html of data values is often represented by showing a single data point, representing the mean value of the data, and error bars to represent the overall distribution of the data. Let's take, for example, the impact energy absorbed by a metal at various temperatures. In this case, the temperature of the metal is the independent variable being manipulated by the researcher and the amount of energy absorbed is the dependent variable being recorded. error bars Because there is not perfect precision in recording this absorbed energy, five different metal bars are tested at each temperature level. The resulting data (and graph) might look like this: For clarity, the data for each level of the independent variable (temperature) has been plotted on the scatter plot in a different color and symbol. Notice the range of energy values recorded at each of the temperatures. At -195 degrees, the energy error bands root values (shown in blue diamonds) all hover around 0 joules. On the other hand, at both 0 and 20 degrees, the values range quite a bit. In fact, there are a number of measurements at 0 degrees (shown in purple squares) that are very close to measurements taken at 20 degrees (shown in light blue triangles). These ranges in values represent the uncertainty in our measurement. Can we say there is any difference in energy level at 0 and 20 degrees? One way to do this is to use the descriptive statistic, mean. The mean, or average, of a group of values describes a middle point, or central tendency, about which data points vary. Without going into detail, the mean is a way of summarizing a group of data and stating a best guess at what the true value of the dependent variable value is for that independent variable level. In this example, it would be a best guess at what the true energy level was for a given temperature. The above scatter plot can be transformed into a line graph showing the mean energy values: Note that instead of creating a graph using all of the raw data, now only the mean value is plotted for impact energy. The mean was calculated for each temper
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