View source for Grace/C2/Bar-Chart-and-Error-Bars/English

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||'''Visual Cue'''
||'''Narration'''

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|| '''Slide Number 1'''
'''Title Slide'''
|| Welcome to the '''spoken tutorial''' on '''Bar Chart and Error bars'''.

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|| '''Slide Number 2'''
'''Learning Objectives'''
|| In this tutorial, we will learn to,
* Draw a bar chart
* Label the x-axis with string data
* Edit the dataset
* Add error bars in y-axis
* Change the error bar size and color
* Add an object and format the style and 
* Delete an object

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|| '''Slide Number 3'''
'''System and Software Requirement'''
|| To record this tutorial, I am using,
* '''Ubuntu Linux''' 16.04 OS
* '''Grace''' version 5.1.25
* '''gedit''' text editor 3.18.3

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|| '''Slide Number 4'''
'''Pre-requisites'''
'''https://spoken-tutorial.org/'''
|| To follow this tutorial, 
* Learner must be familiar with the '''Grace''' interface.
* For the pre-requisite tutorials, please visit this site.

 
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|| '''Slide Number 5'''
'''Code Files'''
|| The example files required for this tutorial are provided in the '''code files''' link.
Please download and extract the files to '''Desktop'''. 

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|| Go to '''Desktop'''. 
|| Go to '''Desktop'''. 

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|| Hover mouse next to '''bar.txt''' .
|| Notice the text file '''bar.txt'''.

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|| Open''' bar.txt '''.
|| Open file '''bar.txt''' in a text editor and notice the three data columns.

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|| Hover mouse on the three columns.
|| The first column is the data row number.
Second column is y data.

The third column is the x data which is a string.

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|| Close the text editor.
|| Close the text editor window.

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|| Open Grace.
|| I have opened the '''Grace''' program.

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|| Resize graph panel.
|| First, resize the graph panel to fit the field of view.

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|| Go to '''Data, import, ASCII'''
|| Go to '''Data, import, ASCII''' to open the '''Grace read sets''' dialogue box.

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|| Select '''Desktop''', select '''bar.txt'''.
|| Navigate to '''Desktop''' and select the '''bar.txt''' file.
 
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|| Choose '''Bar''' for '''set type'''.
|| For '''set type''' choose '''bar''' option from the dropdown.

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|| Click on '''Ok'''.
|| '''Autoscale XY''' on read and click on '''Ok''' to load the data.

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|| Click on '''Cancel'''.
|| Click on '''Cancel''' to close the dialogue box.

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|| Show graph.
|| A '''bar''' '''chart''' appears along with a line plot.

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|| Cursor on the interface.
|| Let’s format the properties of the '''bar chart''' and add the '''x''' string data to it.

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|| Open '''Set Appearance''' window.
|| Double click on the line to open '''Set Appearance''' window.

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|| Drag '''Set Appearance''' window to the side.
|| I will the '''Set Appearance''' window for better view.

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|| In '''Line properties''', '''Type''' dropdown, choose '''None'''.
|| Under the '''Line properties''', in the '''Type''' dropdown, choose '''None'''.

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|| Click on '''Apply''', then click on Close.
|| Click on '''Apply''' to remove the line in the graph.
Click on '''Close''', to close the dialogue box.

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|| Next, go to '''Plot, '''select''' Axis properties'''.
|| Next, go to the '''Plot''' menu and select '''Axis properties'''.

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|| Change axis limit from 0 to 4.
|| In the '''Grace: Axes''' window, change the '''x''' axis limits from zero to four.
Type start at 0 and at stop 4.

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|| Under '''Tick properties''', 
Set '''Major spacing''' to 1 and Minor tics to zero.
|| Under '''Tick properties''', I will set '''Major spacing''' to one and '''Minor ticks''' to zero.

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|| Click on '''Apply'''.
|| Click on '''Apply''', to apply the changes.

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|| In '''Edit''', select '''y''' axis.
|| In the '''Edit''' dropdown, select '''y''' axis.

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|| Click on '''Apply'''.
|| I will change the '''y''' axis limits to start from zero and to stop at 5.
Click on '''Apply'''.

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|| Go to the '''tick marks''' tab. 
Choose tick marks on the normal side of graph for x and y axes.
|| Click on the '''Tick marks''' tab. 
From the '''tick marks''' tab, from the '''Draw on''' drop down, choose '''Normal side'''.

Then click Apply to apply the changes.
 
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|| In '''Edit''', select x-axis.
In Draw on, select Normal side
|| Let us change do the same for x axis. 
In the '''Edit''' dropdown, select '''X axis'''.
In the '''Draw on '''dropdown, change draw ticks to '''Normal side'''.

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|| Click on '''Apply'''.
|| Again click on '''Apply''' to apply the changes to the graph.

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|| Hover mouse next to tick mark
|| Notice how the graph looks after each change has been applied.

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|| Go to the '''Special''' tab.
Show, screen shot of '''Qtgrace'''.
|| Click on the '''Special''' tab on the right side. 

This tab is labeled as '''custom ticks''' in '''Qtgrace'''.

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|| In '''special ticks''' pull down, choose '''tick marks and labels'''.

|| In the '''Special ticks''' drop down, choose '''Tick marks and labels'''.

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|| Open and show the bar.txt file.
Point to first data row and '''S1'''. 
|| Let us re-open '''bar.txt''' file.

Notice that, the string '''S1''' is associated with the first data point.

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|| Point to first data row and '''S2'''. 
Point to first data row and '''S3'''. 
|| Similarly the string '''S2''' is associated with the second data point.

And the string '''S3''' is associated with the third data point.

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|| Close the file '''bar.txt'''.
Point to Edit form in '''x-axis'''.
|| Close the text editor window.
Make sure the Edit form is in '''x-axis'''.
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|| '''Enter data '''

'''1 S1'''

'''2 S2'''

'''3 S3'''
|| In the '''tick location label''' form, enter data as seen.

Delete the value zero and four on the second column.

Type, S1, S2 and S3 against 1, 2 and 3 in the second column.

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|| Click on '''Apply'''.
|| Click on '''Apply''' to see the changes in the graph.

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|| Cursor on the interface. Click on '''Close'''.
|| Next, let’s learn to edit a dataset within the '''Grace''' program.

Click on '''Close''' to close the dialogue box.

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|| Open the '''set appearance''' dialogue box.
|| Double click on the bar in the graph to open the '''Set Appearance''' window.

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|| Hover mouse next to '''G(0)''' and '''S0 '''.
|| Under '''Select set''', notice '''G(0) (S0) [2] [3]'''.
'''G''' denotes graph and '''S''' refers to the dataset in the graph.

Here it is '''graph''' zero and '''set''' zero.

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|| Right-click and hold the mouse on '''G(0) S0 [2] [3]'''.
|| Right-click and hold the mouse on '''G(0) S0 '''to open a context menu.

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|| Show the screen shot in Windows for Qtgrace for the difference.
|| The context menu has more options in Qtgrace.

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|| In the menu choose''' Edit'''.
From the sub-menu select '''In Spreadsheet '''option.
||In the menu choose '''Edit''' and from the sub-menu, select '''In Spreadsheet''' option.

The dataset opens in the '''Spreadsheet data set editor'''.

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|| For '''Type''', select '''BARDY''' and click on '''Apply'''.
|| In the '''Type''' drop-down change '''BAR''' to '''BARDY''' and click on '''Apply'''.

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|| Point to the column in the '''spreadsheet'''.
|| An extra column '''Y1''' gets added to the '''spreadsheet'''.

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|| Show screenshot of '''spreadsheet editor''' in '''Qtgrace''', without the string column.

|| '''Windows''' users will not see the '''string''' label column in '''Qtgrace'''.

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|| Enter '''0.4 0.6 0.3''' in '''Y1''' column.
Click on '''Apply'''.
|| I will enter the error values as 0.4, 0.6 and 0.3 in the '''Y1''' column and
click on '''Apply'''.

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|| Click on, '''Close''' the '''Spreadsheet editor''' window. 
Hover mouse next to error bar.
|| Click on '''Close''', on the '''Spreadsheet editor''' window. 

Notice the incorporated error bars on the bar chart.

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|| Go to the '''Set appearance''' window. 
Choose the '''Error bar''' tab.
|| Next, we will edit the size of the '''Error bar'''. 
Go to the '''Set appearance''' window and choose the '''Error bar''' tab.

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|| Set '''Bar line''' scroll bar at 50.
|| Change the '''Bar line''' to 50 using the scroll bar. 

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|| Click on the '''color''' drop down and select red color.
Click on '''Apply'''.
|| Click on the '''color''' drop down and select red color.
Then, click on '''Apply'''.

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|| Point to the changed colour.
|| This changes the color of the error bars to red.

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|| Click on '''Close'''.
|| Click on '''Close''' in the set appearance window.

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|| Cursor on the window.
|| We will now draw an arrow in the plot.

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|| Click on '''Window''' and '''Drawing Objects'''.
|| Go to '''Window''' in menu and choose '''Drawing Objects'''.
The '''Objects''' panel opens.
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|| Point to the '''Objects''' panel.
Click on '''Line''' button in the panel.
Point to the plus sign.
|| Click on the '''Line''' button and move the cursor to the plot.
The cursor changes to plus sign.

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|| Click left, move cursor to draw the line.
Drag the cursor to draw the line until the desired location.
|| I will left click on the desired location to start the line.
Drag the cursor to draw the line until the desired location.

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|| Point to the line.
Left click on the mouse.
|| Notice that a line is drawn.
Click left again to fix the end location of the line.

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|| Click on '''Edit object'''.
Click on the '''Line props'''.
|| Click on the '''Edit object'''.
Next, Double click on the line. 
The '''Edit Line''' dialogue box opens.

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|| Change line width to 1.5.
|| Change '''Line width''' to 1.5 using the triangle buttons.

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|| Under '''Arrow''', In the '''Place''' at drop-down, choose '''End'''.
|| For the arrow styles, in the '''Place at''' drop-down, choose '''End'''.

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|| For '''Type''', choose '''Filled'''.
|| For the arrow '''Type''', choose '''Filled'''.

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|| Set '''I/L form factor''' to '''0.7 '''.
|| Decrease '''I by L form factor''' to 0.7 .

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|| Hover mouse over '''Viewport co-ordinates'''.
|| The '''Position''' shows '''Viewport coordinates'''. 
I will leave it as is.

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|| Click on '''Accept'''. 
|| Click on '''Accept''' to change the arrow style.

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|| Click on '''Close'''.
|| Click on '''Close''' to close the dialogue box.

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|| Click on '''Copy object''' in the '''Objects''' panel.
|| We can make a copy of an existing object.
To make a similar arrow as this, click on '''Copy object''' in the '''Objects''' panel.

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|| Shown on screen.
|| The cursor changes to a hand sign.

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|| Left click and hold on the arrow.
|| Left click and hold on the arrow to see a box.

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|| Drag the box and place it in the desired location.
Left click to release the arrow.
|| Drag the box and place the copied arrow at the desired location.
Left click to release the copied arrow in the desired location.

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|| Click on '''Delete object '''in the '''Objects''' panel.
|| We can also delete the objects added to the graph.
To delete an added object, click on '''Delete object''' in the '''Objects''' panel.

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|| Move cursor to the graph.
|| Move cursor to the graph and the cursor changes to a '''x''' sign.

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|| Click on the copied arrow.
|| I will click on the newly copied arrow to delete it.

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|| Hover mouse on the popup box.
|| A warning popup window opens, asking the user '''Kill the line?'''

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|| Click on '''Ok'''.
|| Click on '''Ok''' and notice that the object has been deleted.

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|| Hover mouse over '''text''', '''ellipse'''.
|| Similarly, we can add text, ellipse and also format their properties. 

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|| Click on '''Close'''.
|| Click on '''Close''' to close the objects panel.

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|| Save with file name '''barxydy.agr''' on '''Desktop'''.
|| Let us save the '''Grace project''' before closing it. 
I will save with file as '''barxydy.agr''' on '''Desktop'''.

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|| Choose '''File''', '''Exit'''.
|| Choose '''File''', '''Exit''' to exit '''Grace'''.

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| '''Slide Number 6'''
'''Summary'''
|| Now let's summarize. 
In this tutorial, we,
* Drew a bar chart
* Labeled the x-axis with string data
* Edited the dataset
* Added error bars in the y-axis
* Adjusted the error bar size
* Added an object, formatted the style and deleted an object

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|| '''Slide Number 8'''
'''Assignment'''
'''Time-activity chart of your day'''
|| For assignment, please do the following.
* Draw a '''Time-activity graph''' for your daily activities.
* For this, time your activities in a day and make a time table. 
* Plot a bar chart with time in hours on y-axis and activities on x-axis.

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|| '''Glimpse of completed assignment'''.
|| Your completed assignment may look similar to this.

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|| '''Slide Number 8'''
'''Spoken Tutorial Project'''
|| This video summarizes the '''Spoken Tutorial Project'''.
Please download and watch it.

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|| '''Slide Number 9'''
'''Spoken Tutorial workshops'''
|| The '''Spoken Tutorial Project''' team:
* conducts workshops and
* gives certificates.
For more details, please write to us.

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|| '''Slide Number 10'''
'''Forum for specific questions:'''
|| Please post your timed queries in this forum.

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|| '''Slide Number 11'''
'''Acknowledgement'''
|| '''Spoken Tutorial''' Project is funded by '''NMEICT''', '''MHRD''', '''Government of India'''.
More information on this mission is available at this link.

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|| 
|| This tutorial is contributed by '''Rani''' from '''IIT, Bombay'''. 
Thank you for joining.

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