How To Draw Error Bars On A Line Graph
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What Is An Error Bar
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How To Draw Error Bars Using Standard Deviation
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How To Draw Error Bars On A Bar Graph
H AbonnierenAbonniertAbo beenden20.10820 Tsd. Wird geladen... Wird geladen... Wird verarbeitet... Hinzufügen Möchtest du dieses Video später noch einmal ansehen? Wenn du bei YouTube angemeldet bist, kannst du http://www.originlab.com/doc/Origin-Help/Add-ErrBar-to-Graph dieses Video zu einer Playlist hinzufügen. Anmelden Teilen Mehr Melden Möchtest du dieses Video melden? Melde dich an, um unangemessene Inhalte zu melden. Anmelden Transkript Statistik 95.988 Aufrufe 111 Dieses Video gefällt dir? Melde dich bei YouTube an, damit dein Feedback gezählt wird. Anmelden 112 29 Dieses Video gefällt dir nicht? Melde https://www.youtube.com/watch?v=StnlaFAcotA dich bei YouTube an, damit dein Feedback gezählt wird. Anmelden 30 Wird geladen... Wird geladen... Transkript Das interaktive Transkript konnte nicht geladen werden. Wird geladen... Wird geladen... Die Bewertungsfunktion ist nach Ausleihen des Videos verfügbar. Diese Funktion ist zurzeit nicht verfügbar. Bitte versuche es später erneut. Veröffentlicht am 25.06.2013http://myexcelcharts.blogspot.comAn example of how to add error bars to a line chart. Kategorie Bildung Lizenz Standard-YouTube-Lizenz Mehr anzeigen Weniger anzeigen Wird geladen... Anzeige Autoplay Wenn Autoplay aktiviert ist, wird die Wiedergabe automatisch mit einem der aktuellen Videovorschläge fortgesetzt. Nächstes Video Excel: Graphing with separate Error Bars of Standard Deviation - Dauer: 6:38 Peter Stanley 14.656 Aufrufe 6:38 how to plot a graph with error bar - Dauer: 5:30 James Lim 20.003 Aufrufe 5:30 Excel: Add individual SD error bars to each data point - Dauer: 2:07 jasondenys 186.645 Aufrufe 2:07 How to make a line graph in Excel (Scientific data) - Dauer: 6:42 lgines 1.494.395 Aufrufe 6:42
Excel It would be nice if all data was perfect, absolute and complete. But when it isn't, Excel gives us some useful tools to convey margins of error and standard deviations. If you work in a field that needs to reflect an http://www.pryor.com/blog/add-error-bars-and-standard-deviations-to-excel-graphs/ accurate range of data error, then follow the steps below to add Error Bars to your charts and graphs: Begin by creating your spreadsheet and generating the chart or graph you will be working with. To follow using our http://spiff.rit.edu/classes/phys369/workshops/w2c/slope_uncert.html example below, download Standard Deviation Excel Graphs Template1 and use Sheet 1. These steps will apply to Excel 2013. Images were taken using Excel 2013 on the Windows 7 OS. Click on the chart, then click the Chart Elements Button error bar to open the fly-out list of checkboxes. Put a check in the Error Bars checkbox. Click the arrow beside the Error Bars checkbox to choose from common error types: Standard Error – Displays standard error amount for all values. Percentage – Specify a percentage error range and Excel will calculate the error amount for each value. Default percentage is 5%. Standard Deviation – Displays standard deviation error amount for all values. Resulting X &Y error bars will be how to draw the same size and won't vary with each value. You can also turn on Error bars from the Add Chart Element dropdown button on the Design tab under the Chart Tools contextual tab. Blast from the Past: Error Bars function similarly in Excel 2007-2010, but their location in the user interface changed in 2013. To find and turn on Error Bars in Excel 2007-2010, select the chart, then click the Error Bars dropdown menu in the Layout tab under the Chart Tools contextual tab. Customize Error Bar Settings To customize your Error Bar settings, click More Options to open the Format Error Bars Task Pane. To follow using our example, download the Standard Deviation Excel Graphs Template1 and use Sheet 2. From here you can choose to: Set your error bar to appear above the data point, below it, or both. Choose the style of the error bar. Choose and customize the type and amount of the error range. Select the type of error calculation you want, then enter your custom value for that type. Bar chart showing error bars with custom Percentage error amount. Line chart showing error bars with Standard deviation(s) of 1.3 If you need to specify your own error formula, select Custom and then click the Specify Value button to open the Custom Error Bars dialog box. In the dialog box you can enter an absolute value or a for
the picture below, the data points are shown by small, filled, black circles; each datum has error bars to indicate the uncertainty in each measurement. It appears that current is measured to +/- 2.5 milliamps, and voltage to about +/- 0.1 volts. The hollow triangles represent points used to calculate slopes. Notice how I picked points near the ends of the lines to calculate the slopes! Draw the "best" line through all the points, taking into account the error bars. Measure the slope of this line. Draw the "min" line -- the one with as small a slope as you think reasonable (taking into account error bars), while still doing a fair job of representing all the data. Measure the slope of this line. Draw the "max" line -- the one with as large a slope as you think reasonable (taking into account error bars), while still doing a fair job of representing all the data. Measure the slope of this line. Calculate the uncertainty in the slope as one-half of the difference between max and min slopes. In the example above, I find 147 mA - 107 mA mA "best" slope = ------------------ = 7.27 ---- 10 V - 4.5 V V 145 mA - 115 mA mA "min" slope = ------------------ = 5.45 ---- 10.5 V - 5.0 V V 152 mA - 106 mA mA "max" slope = ------------------ = 9.20 ---- 10 V - 5.0 V V mA Uncertainty in slope is 0.5 * (9.20 - 5.45) = 1.875 ---- V There are at most two significant digits in the slope, based on the uncertainty. So, I would say the graph shows mA slope = 7.3 +/- 1.9 ---- V Last modified 7/31/2007 by MWR. Copyright © Michael Richmond. This work is licensed under a Creative Commons License.