--- a/embellishing_a_plot.rst Thu Oct 07 14:21:53 2010 +0530
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,446 +0,0 @@
-.. Author : Nishanth
- Internal Reviewer 1 : Anoop
- Internal Reviewer 2 : Madhu
- External Reviewer :
-
-.. Prerequisites: using ``plot`` command
-
-Hello friends and welcome to the tutorial on Embellishing Plots.
-
-{{{ Show the slide containing title }}}
-
-{{{ Show the slide containing the outline }}}
-
-In this tutorial, we shall look at how to modify the colour, thickness and
-linestyle of the plot. We shall then learn how to add title to the plot and
-then look at adding labels to x and y axes. we shall also look at adding
-annotations to the plot and setting the limits of axes.
-
-Let us start ipython with pylab loaded, by typing on the terminal
-
-{{{ shift to terminal and type ipython -pylab }}}
-
-::
-
- ipython -pylab
-
-.. #[madhu: I feel the instructions should precede the actual action,
-
-since while recording we need to know before hand what we need to do]
-
-We shall first make a simple plot and start decorating it.
-
-.. #[madhu: start decorating it should be fine, with is not necessary]
-
-::
-
- x = linspace(-2, 4, 20)
- plot(x, sin(x))
-
-.. #[madhu: Standard is to choose between -50 to 50 or 0 to 50 with 100
- points right?]
-
-As we can see, the default colour and the default thickness of the
-line is as decided by pylab. Wouldn't be nice if we could control
-these parameters in the plot? This is possible by passing additional
-arguments to the plot command.
-
-.. #[[Anoop: I think it will be good to rephrase the sentence]]
-.. #[madhu: Why "you" here? Shouldn't this be "we" as decided? Also I
- added "the default" check the diff]
-
-The additional argument that we shall be passing in here now is the
-colour argument. We shall first clear the figure and plot the same in
-red colour. Hence
-
-.. #[Madhu: Note the diff for changes]
- ::
-
- clf()
- plot(x, sin(x), 'r')
-
-As we can see we have the same plot but now in red colour.
-
-.. #[Madhu: diff again]
-
-To alter the thickness of the line, we use the ``linewidth`` argument in the plot
-command. Hence
-::
-
- plot(x, cos(x), linewidth=2)
-
-produces a plot with a thicker line, to be more precise plot with line
-thickness 2.
-
-.. #[[Anoop: I guess it will be good if you say that it affects the
- same plot, as you have not cleared the figure]]
-.. #[Madhu: To Anoop, not necessary I feel since they can see it?]
-
-{{{ Show the plot and compare the sine and cos plots }}}
-
-{{{ Pause here and try out the following exercises }}}
-
-.. #[[Anoop: is the above a context switch for the person who does the
- recording, other wise if it an instruction to the person viewing
- the video, then I guess the three braces can be removed.]]
-
-%% 1 %% Plot sin(x) in blue colour and with linewidth as 3
-
-{{{ continue from paused state }}}
-
-A combination of colour and linewidth would do the job for us. Hence
-::
-
- clf()
- plot(x, sin(x), 'b', linewidth=3)
-
-.. #[[Anoop: add clf()]]
-
-produces the required plot
-
-.. #[Nishanth]: I could not think of a SIMPLE recipe approach for
- introducing linestyle. Hence the naive approach.
-
-.. #[[Anoop: I guess the recipe is fine, but would be better if you
- add the problem statement rather than just saying "let's do a simple
- plot"]]
-
-.. #[Madhu: It is good enough.]
-
-Occasionally we would also want to alter the style of line. Sometimes
-all we want is just a bunch of points not joined. This is possible by
-passing the linestyle argument along with or instead of the colour
-argument. Hence ::
-
- clf()
- plot(x, sin(x), '.')
-
-produces a plot with only points.
-
-To produce the same plot but now in blue colour, we do
-::
-
- clf()
- plot(x, sin(x), 'b.')
-
-Other available options can be seen in the documentation of plot.
-::
-
- plot?
-
-{{{ Run through the documentation and show the options available }}}
-
-{{{ Show the options available for line style and colors }}}
-
-.. #[Madhu: The script needs to tell what needs to be shown or
- explained.]
-
-{{{ Pause here and try out the following exercises }}}
-
-.. #[[Anoop: same question as above, should it be read out?]]
-
-%% 2 %% Plot the sine curve with green filled circles.
-
-{{{ continue from paused state }}}
-
-All we have to do is use a combination of linestyle and colour to acheive this.
-Hence
-::
-
- clf()
- plot(x, cos(x), 'go')
-
-produces the required plot.
-
-{{{ Pause here and try out the following exercises }}}
-
-%% 3 %% Plot the curve of x vs tan(x) in red dashed line and linewidth 3
-
-{{{ continue from paused state }}}
-
-.. #[Madhu: I did not understand the question]
-
-Now that we know how to produce a bare minimum plot with colour, style
-and thickness of our interest, we shall look at decorating the plot.
-
-Let us start with a plot of the function -x^2 + 4x - 5.
-::
-
- plot(x, -x*x + 4*x - 5, 'r', linewidth=2)
-
-{{{ Show the plot window and switch back to terminal }}}
-
-We now have the plot in a colour and linewidth of our interest. As you can see,
-the figure does not have any description describing the plot.
-
-.. #[Madhu: Added "not". See the diff]
-
-We will now add a title to the plot by using the ``title`` command.
-::
-
- title("Parabolic function -x^2+4x-5")
-
-{{{ Show the plot window and point to the title }}}
-
-The figure now has a title which describes what the plot is. The
-``title`` command as you can see, takes a string as an argument and sets
-the title accordingly.
-
-.. #[Madhu: See the diff]
-
-The formatting in title is messed and it does not look clean. You can imagine
-what would be the situation if there were fractions and more complex functions
-like log and exp. Wouldn't it be good if there was LaTex like formatting?
-
-That is also possible by adding a $ sign before and after the part of the
-string that should be in LaTex style.
-
-for instance, we can use
-::
-
- title("Parabolic function $-x^2+4x-5$")
-
-and we get the polynomial formatted properly.
-
-.. #[Nishanth]: Unsure if I have to give this exercise since enclosing the whole
- string in LaTex style is not good
-
-.. #[[Anoop: I guess you can go ahead with the LaTex thing, it's
- cool!]]
-.. #[Madhu: Instead of saying LaTeX style you can say Typeset math
- since that is how it is called as. I am not sure as well. It
- doesn't really solve the purpose]
-
-{{{ Pause here and try out the following exercises }}}
-
-%% 4 %% Change the title of the figure such that the whole title is formatted
- in LaTex style
-
-{{{ continue from the paused state }}}
-
-The solution is to enclose the whole string in between $. Hence,
-::
-
- title("$Parabolic function -x^2+4x-5$")
-
-gives a title that looks neatly formatted.
-
-Although we have title, the plot is not complete without labelling x
-and y axes. Hence we shall label x-axis to "x" and y-axis to "f(x)" ::
-
- xlabel("x")
-
-{{{ Switch to plot window and show the xlabel }}}
-
-As you can see, ``xlabel`` command takes a string as an argument,
-similar to the ``title`` command and sets it as the label to x-axis.
-
-.. #[See the diff]
-
-Similarly,
-::
-
- ylabel("f(x)")
-
-sets the name of the y-axis as "f(x)"
-
-{{{ Show the plot window and point to ylabel and switch back to the terminal }}}
-
-{{{ Pause here and try out the following exercises }}}
-
-%% 5 %% Set the x and y labels as "x" and "f(x)" in LaTex style.
-
-{{{ continue from paused state }}}
-
-Since we need LaTex style formatting, all we have to do is enclose the string
-in between two $. Hence,
-::
-
- xlabel("$x$")
- yalbel("$f(x)$")
-
-does the job for us.
-
-{{{ Show the plot window with clean labels }}}
-
-The plot is now almost complete. Except that we have still not seen how to
-name the points. For example the point (2, -1) is the local maxima. We would
-like to name the point accordingly. We can do this by using
-::
-
- annotate("local maxima", xy=(2, -1))
-
-{{{ Show the annotation that has appeared on the plot }}}
-
-As you can see, the first argument to ``annotate`` command is the name we would
-like to mark the point as and the second argument is the co-ordinates of the
-point at which the name should appear. It is a sequence containing two numbers.
-The first is x co-ordinate and second is y co-ordinate.
-
-.. #[[Anoop: I think we should tell explicitely that xy takes a
- sequence or a tuple]]
-.. #[Madhu: Agreed to what anoop says and also that xy= is the point
- part should be rephrased I think.]
-
-{{{ Pause here and try out the following exercises }}}
-
-%% 6 %% Make an annotation called "root" at the point (-4, 0)
- What happens to the first annotation ?
-
-{{{ continue from paused state }}}
-
-As we can see, every annotate command makes a new annotation on the figure.
-
-Now we have everything we need to decorate a plot. but the plot would be
-incomplete if we can not set the limits of axes. This is possible using the
-button on the plot window.
-
-we shall look at how to get and set them from the script.
-::
-
- xlim()
- ylim()
-
-We see that ``xlim`` function returns the current x axis limits and ylim
-function returns the current y-axis limits.
-
-Let us look at how to set the limits.
-::
-
- xlim(-4, 5)
-
-We see the limits of x-axis are now set to -4 and 5.
-Similarly
-::
-
- ylim(-15, 2)
-
-sets the limits of y-axis appropriately.
-
-{{{ Pause here and try out the following exercises }}}
-
-%% 7 %% Set the limits of axes such that the area of interest is the rectangle
- (-1, -15) and (3, 0)
-
-{{{ continue from paused state }}}
-
-As we can see, the lower upper limits of x-axis in the question are -1 and 3.
-The limits of y-axis are -15 and 0.
-
-::
-
- xlim(-1, 3)
- ylim(-15, 0)
-
-Gives us the required rectangle.
-
-{{{ Show summary slide }}}
-
-we have looked at
-
- * Modifying the attributes of plot by passing additional arguments
- * How to add title
- * How to incorporate LaTex style formatting
- * How to label x and y axes
- * How to add annotations
- * How to set the limits of axes
-
-{{{ Show the "sponsored by FOSSEE" slide }}}
-
-.. #[Nishanth]: Will add this line after all of us fix on one.
-
-This tutorial was created as a part of FOSSEE project, NME ICT, MHRD India
-
-Hope you have enjoyed and found it useful.
-Thankyou
-
-Questions
-=========
-
- 1. Draw a plot of cosine graph between -2pi to 2pi with line thickness 4
-
- Answer::
-
- x = linspace(-2*pi, 2*pi)
- plot(x, cos(x), linewidth=4)
-
- 2. Draw a plot of the polynomial x^2-5x+6 in the range 0 to 5 in blue dotted
- line
-
- Answer::
-
- x = linspace(-2*pi, 2*pi)
- plot(x, x**2 - 5*x + 6, 'r.')
-
- 3. Which marker is used to get circles
-
- a. '.'
- #. '^'
- #. 'o'
- #. '--'
-
- 4. What does the '^' marker produce
-
- Answer: Triangle up marker
-
- 5. How do you set the title as x^2-5x+6 in LaTex style formatting
-
- Answer: title("$x^2-5x+6$")
-
-6. What happens when the following code is executed::
-
- xlabel("First label")
- xlabel("Second label")
-
- Answer: The label of x-axis is set to "Second label"
-
- 7. Read thorugh the documentation and find out is there a way to modify the
- alignment of text in the command ``ylabel``
-
- a. Yes
- #. No
-
- Answer: No
-
- 8. How to add the annotation "Maxima" at the point (1, 2)
-
- Answer: annotate("Maxima", xy=(1, 2))
-
- 9. Is the command ``annotate("max", (1, 2))`` same as ``annotate("max",
- xy=(1, 2)``
-
- a. True
- b. False
-
- Answer: True
-
- 10. When a new annotation is made at a point, what happens to the old one
-
- a. It is replaced
- b. It is overwritten
- c. The new annotation is combined with old one
-
- Answer: It is overwritten
-
- 11. What happens when xlim is used without arguments
-
- Answer: It gives the current limits of x-axis
-
- 12. What happens when ``ylim(0, 5)`` is used
-
- Answer: It sets the lower and upper limits of y-axis to 0 and 5
-
- 13. Draw a cosine plot from 0 to 2*pi with green dots. annotate the origin as
- "origin" and set x and y labels to "x" and cos(x) and x limits to 0 and
- 2pi and y limits to -1.2 and 1.2
-
- Answer::
-
- x = linspace(0, 2*pi)
- plot(x, cos(x), 'g.')
- annotate("origin", (0, 0))
- xlabel("$x$")
- ylabel("$cos(x)$")
- xlim(0, 2*pi)
- ylim(-1.2, 1.2)
-
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/embellishing_a_plot/questions.rst Thu Oct 07 14:25:44 2010 +0530
@@ -0,0 +1,90 @@
+Objective Questions
+-------------------
+
+ 1. Draw a plot of cosine graph between -2pi to 2pi with line thickness 4
+
+ Answer::
+
+ x = linspace(-2*pi, 2*pi)
+ plot(x, cos(x), linewidth=4)
+
+ 2. Draw a plot of the polynomial x^2-5x+6 in the range 0 to 5 in blue dotted
+ line
+
+ Answer::
+
+ x = linspace(-2*pi, 2*pi)
+ plot(x, x**2 - 5*x + 6, 'r.')
+
+ 3. Which marker is used to get circles
+
+ a. '.'
+ #. '^'
+ #. 'o'
+ #. '--'
+
+ 4. What does the '^' marker produce
+
+ Answer: Triangle up marker
+
+ 5. How do you set the title as x^2-5x+6 in LaTex style formatting
+
+ Answer: title("$x^2-5x+6$")
+
+6. What happens when the following code is executed::
+
+ xlabel("First label")
+ xlabel("Second label")
+
+ Answer: The label of x-axis is set to "Second label"
+
+ 7. Read thorugh the documentation and find out is there a way to modify the
+ alignment of text in the command ``ylabel``
+
+ a. Yes
+ #. No
+
+ Answer: No
+
+ 8. How to add the annotation "Maxima" at the point (1, 2)
+
+ Answer: annotate("Maxima", xy=(1, 2))
+
+ 9. Is the command ``annotate("max", (1, 2))`` same as ``annotate("max",
+ xy=(1, 2)``
+
+ a. True
+ b. False
+
+ Answer: True
+
+ 10. When a new annotation is made at a point, what happens to the old one
+
+ a. It is replaced
+ b. It is overwritten
+ c. The new annotation is combined with old one
+
+ Answer: It is overwritten
+
+ 11. What happens when xlim is used without arguments
+
+ Answer: It gives the current limits of x-axis
+
+ 12. What happens when ``ylim(0, 5)`` is used
+
+ Answer: It sets the lower and upper limits of y-axis to 0 and 5
+
+ 13. Draw a cosine plot from 0 to 2*pi with green dots. annotate the origin as
+ "origin" and set x and y labels to "x" and cos(x) and x limits to 0 and
+ 2pi and y limits to -1.2 and 1.2
+
+ Answer::
+
+ x = linspace(0, 2*pi)
+ plot(x, cos(x), 'g.')
+ annotate("origin", (0, 0))
+ xlabel("$x$")
+ ylabel("$cos(x)$")
+ xlim(0, 2*pi)
+ ylim(-1.2, 1.2)
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/embellishing_a_plot/quickref.tex Thu Oct 07 14:25:44 2010 +0530
@@ -0,0 +1,11 @@
+Creating a tuple:\\
+{\ex \lstinline| t = (1, "hello", 2.5)|}
+
+Accessing elements of tuples:\\
+{\ex \lstinline| t[index] Ex: t[2]|}
+
+Accessing slices of tuples:\\
+{\ex \lstinline| t[start:stop:step]|}
+
+Swapping values:\\
+{\ex \lstinline| a, b = b, a|}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/embellishing_a_plot/script.rst Thu Oct 07 14:25:44 2010 +0530
@@ -0,0 +1,371 @@
+.. Objectives
+.. ----------
+
+.. A - Students and teachers from Science and engineering backgrounds
+ B -
+ C -
+ D -
+
+.. Prerequisites
+.. -------------
+
+.. 1. Using the ``plot`` command interactively
+
+.. Author : Nishanth Amuluru
+ Internal Reviewer :
+ External Reviewer :
+ Checklist OK? : <put date stamp here, if OK> [2010-10-05]
+
+Script
+------
+
+Hello friends and welcome to the tutorial on Embellishing Plots.
+
+{{{ Show the slide containing title }}}
+
+{{{ Show the slide containing the outline }}}
+
+In this tutorial, we shall look at how to modify the colour, thickness and
+linestyle of the plot. We shall then learn how to add title to the plot and
+then look at adding labels to x and y axes. we shall also look at adding
+annotations to the plot and setting the limits of axes.
+
+Let us start ipython with pylab loaded, by typing on the terminal
+
+{{{ shift to terminal and type ipython -pylab }}}
+
+::
+
+ ipython -pylab
+
+.. #[madhu: I feel the instructions should precede the actual action,
+
+since while recording we need to know before hand what we need to do]
+
+We shall first make a simple plot and start decorating it.
+
+.. #[madhu: start decorating it should be fine, with is not necessary]
+
+::
+
+ x = linspace(-2, 4, 20)
+ plot(x, sin(x))
+
+.. #[madhu: Standard is to choose between -50 to 50 or 0 to 50 with 100
+ points right?]
+
+As we can see, the default colour and the default thickness of the
+line is as decided by pylab. Wouldn't be nice if we could control
+these parameters in the plot? This is possible by passing additional
+arguments to the plot command.
+
+.. #[[Anoop: I think it will be good to rephrase the sentence]]
+.. #[madhu: Why "you" here? Shouldn't this be "we" as decided? Also I
+ added "the default" check the diff]
+
+The additional argument that we shall be passing in here now is the
+colour argument. We shall first clear the figure and plot the same in
+red colour. Hence
+
+.. #[Madhu: Note the diff for changes]
+ ::
+
+ clf()
+ plot(x, sin(x), 'r')
+
+As we can see we have the same plot but now in red colour.
+
+.. #[Madhu: diff again]
+
+To alter the thickness of the line, we use the ``linewidth`` argument in the plot
+command. Hence
+::
+
+ plot(x, cos(x), linewidth=2)
+
+produces a plot with a thicker line, to be more precise plot with line
+thickness 2.
+
+.. #[[Anoop: I guess it will be good if you say that it affects the
+ same plot, as you have not cleared the figure]]
+.. #[Madhu: To Anoop, not necessary I feel since they can see it?]
+
+{{{ Show the plot and compare the sine and cos plots }}}
+
+{{{ Pause here and try out the following exercises }}}
+
+.. #[[Anoop: is the above a context switch for the person who does the
+ recording, other wise if it an instruction to the person viewing
+ the video, then I guess the three braces can be removed.]]
+
+%% 1 %% Plot sin(x) in blue colour and with linewidth as 3
+
+{{{ continue from paused state }}}
+
+A combination of colour and linewidth would do the job for us. Hence
+::
+
+ clf()
+ plot(x, sin(x), 'b', linewidth=3)
+
+.. #[[Anoop: add clf()]]
+
+produces the required plot
+
+.. #[Nishanth]: I could not think of a SIMPLE recipe approach for
+ introducing linestyle. Hence the naive approach.
+
+.. #[[Anoop: I guess the recipe is fine, but would be better if you
+ add the problem statement rather than just saying "let's do a simple
+ plot"]]
+
+.. #[Madhu: It is good enough.]
+
+Occasionally we would also want to alter the style of line. Sometimes
+all we want is just a bunch of points not joined. This is possible by
+passing the linestyle argument along with or instead of the colour
+argument. Hence ::
+
+ clf()
+ plot(x, sin(x), '.')
+
+produces a plot with only points.
+
+To produce the same plot but now in blue colour, we do
+::
+
+ clf()
+ plot(x, sin(x), 'b.')
+
+Other available options can be seen in the documentation of plot.
+::
+
+ plot?
+
+{{{ Run through the documentation and show the options available }}}
+
+{{{ Show the options available for line style and colors }}}
+
+.. #[Madhu: The script needs to tell what needs to be shown or
+ explained.]
+
+{{{ Pause here and try out the following exercises }}}
+
+.. #[[Anoop: same question as above, should it be read out?]]
+
+%% 2 %% Plot the sine curve with green filled circles.
+
+{{{ continue from paused state }}}
+
+All we have to do is use a combination of linestyle and colour to acheive this.
+Hence
+::
+
+ clf()
+ plot(x, cos(x), 'go')
+
+produces the required plot.
+
+{{{ Pause here and try out the following exercises }}}
+
+%% 3 %% Plot the curve of x vs tan(x) in red dashed line and linewidth 3
+
+{{{ continue from paused state }}}
+
+.. #[Madhu: I did not understand the question]
+
+Now that we know how to produce a bare minimum plot with colour, style
+and thickness of our interest, we shall look at decorating the plot.
+
+Let us start with a plot of the function -x^2 + 4x - 5.
+::
+
+ plot(x, -x*x + 4*x - 5, 'r', linewidth=2)
+
+{{{ Show the plot window and switch back to terminal }}}
+
+We now have the plot in a colour and linewidth of our interest. As you can see,
+the figure does not have any description describing the plot.
+
+.. #[Madhu: Added "not". See the diff]
+
+We will now add a title to the plot by using the ``title`` command.
+::
+
+ title("Parabolic function -x^2+4x-5")
+
+{{{ Show the plot window and point to the title }}}
+
+The figure now has a title which describes what the plot is. The
+``title`` command as you can see, takes a string as an argument and sets
+the title accordingly.
+
+.. #[Madhu: See the diff]
+
+The formatting in title is messed and it does not look clean. You can imagine
+what would be the situation if there were fractions and more complex functions
+like log and exp. Wouldn't it be good if there was LaTex like formatting?
+
+That is also possible by adding a $ sign before and after the part of the
+string that should be in LaTex style.
+
+for instance, we can use
+::
+
+ title("Parabolic function $-x^2+4x-5$")
+
+and we get the polynomial formatted properly.
+
+.. #[Nishanth]: Unsure if I have to give this exercise since enclosing the whole
+ string in LaTex style is not good
+
+.. #[[Anoop: I guess you can go ahead with the LaTex thing, it's
+ cool!]]
+.. #[Madhu: Instead of saying LaTeX style you can say Typeset math
+ since that is how it is called as. I am not sure as well. It
+ doesn't really solve the purpose]
+
+{{{ Pause here and try out the following exercises }}}
+
+%% 4 %% Change the title of the figure such that the whole title is formatted
+ in LaTex style
+
+{{{ continue from the paused state }}}
+
+The solution is to enclose the whole string in between $. Hence,
+::
+
+ title("$Parabolic function -x^2+4x-5$")
+
+gives a title that looks neatly formatted.
+
+Although we have title, the plot is not complete without labelling x
+and y axes. Hence we shall label x-axis to "x" and y-axis to "f(x)" ::
+
+ xlabel("x")
+
+{{{ Switch to plot window and show the xlabel }}}
+
+As you can see, ``xlabel`` command takes a string as an argument,
+similar to the ``title`` command and sets it as the label to x-axis.
+
+.. #[See the diff]
+
+Similarly,
+::
+
+ ylabel("f(x)")
+
+sets the name of the y-axis as "f(x)"
+
+{{{ Show the plot window and point to ylabel and switch back to the terminal }}}
+
+{{{ Pause here and try out the following exercises }}}
+
+%% 5 %% Set the x and y labels as "x" and "f(x)" in LaTex style.
+
+{{{ continue from paused state }}}
+
+Since we need LaTex style formatting, all we have to do is enclose the string
+in between two $. Hence,
+::
+
+ xlabel("$x$")
+ yalbel("$f(x)$")
+
+does the job for us.
+
+{{{ Show the plot window with clean labels }}}
+
+The plot is now almost complete. Except that we have still not seen how to
+name the points. For example the point (2, -1) is the local maxima. We would
+like to name the point accordingly. We can do this by using
+::
+
+ annotate("local maxima", xy=(2, -1))
+
+{{{ Show the annotation that has appeared on the plot }}}
+
+As you can see, the first argument to ``annotate`` command is the name we would
+like to mark the point as and the second argument is the co-ordinates of the
+point at which the name should appear. It is a sequence containing two numbers.
+The first is x co-ordinate and second is y co-ordinate.
+
+.. #[[Anoop: I think we should tell explicitely that xy takes a
+ sequence or a tuple]]
+.. #[Madhu: Agreed to what anoop says and also that xy= is the point
+ part should be rephrased I think.]
+
+{{{ Pause here and try out the following exercises }}}
+
+%% 6 %% Make an annotation called "root" at the point (-4, 0)
+ What happens to the first annotation ?
+
+{{{ continue from paused state }}}
+
+As we can see, every annotate command makes a new annotation on the figure.
+
+Now we have everything we need to decorate a plot. but the plot would be
+incomplete if we can not set the limits of axes. This is possible using the
+button on the plot window.
+
+we shall look at how to get and set them from the script.
+::
+
+ xlim()
+ ylim()
+
+We see that ``xlim`` function returns the current x axis limits and ylim
+function returns the current y-axis limits.
+
+Let us look at how to set the limits.
+::
+
+ xlim(-4, 5)
+
+We see the limits of x-axis are now set to -4 and 5.
+Similarly
+::
+
+ ylim(-15, 2)
+
+sets the limits of y-axis appropriately.
+
+{{{ Pause here and try out the following exercises }}}
+
+%% 7 %% Set the limits of axes such that the area of interest is the rectangle
+ (-1, -15) and (3, 0)
+
+{{{ continue from paused state }}}
+
+As we can see, the lower upper limits of x-axis in the question are -1 and 3.
+The limits of y-axis are -15 and 0.
+
+::
+
+ xlim(-1, 3)
+ ylim(-15, 0)
+
+Gives us the required rectangle.
+
+{{{ Show summary slide }}}
+
+we have looked at
+
+ * Modifying the attributes of plot by passing additional arguments
+ * How to add title
+ * How to incorporate LaTex style formatting
+ * How to label x and y axes
+ * How to add annotations
+ * How to set the limits of axes
+
+{{{ Show the "sponsored by FOSSEE" slide }}}
+
+.. #[Nishanth]: Will add this line after all of us fix on one.
+
+This tutorial was created as a part of FOSSEE project, NME ICT, MHRD India
+
+Hope you have enjoyed and found it useful.
+Thankyou
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/embellishing_a_plot/slides.tex Thu Oct 07 14:25:44 2010 +0530
@@ -0,0 +1,106 @@
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%Tutorial slides on Python.
+%
+% Author: FOSSEE
+% Copyright (c) 2009, FOSSEE, IIT Bombay
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\documentclass[14pt,compress]{beamer}
+%\documentclass[draft]{beamer}
+%\documentclass[compress,handout]{beamer}
+%\usepackage{pgfpages}
+%\pgfpagesuselayout{2 on 1}[a4paper,border shrink=5mm]
+
+% Modified from: generic-ornate-15min-45min.de.tex
+\mode<presentation>
+{
+ \usetheme{Warsaw}
+ \useoutertheme{infolines}
+ \setbeamercovered{transparent}
+}
+
+\usepackage[english]{babel}
+\usepackage[latin1]{inputenc}
+%\usepackage{times}
+\usepackage[T1]{fontenc}
+
+\usepackage{ae,aecompl}
+\usepackage{mathpazo,courier,euler}
+\usepackage[scaled=.95]{helvet}
+
+\definecolor{darkgreen}{rgb}{0,0.5,0}
+
+\usepackage{listings}
+\lstset{language=Python,
+ basicstyle=\ttfamily\bfseries,
+ commentstyle=\color{red}\itshape,
+ stringstyle=\color{darkgreen},
+ showstringspaces=false,
+ keywordstyle=\color{blue}\bfseries}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Macros
+\setbeamercolor{emphbar}{bg=blue!20, fg=black}
+\newcommand{\emphbar}[1]
+{\begin{beamercolorbox}[rounded=true]{emphbar}
+ {#1}
+ \end{beamercolorbox}
+}
+\newcounter{time}
+\setcounter{time}{0}
+\newcommand{\inctime}[1]{\addtocounter{time}{#1}{\tiny \thetime\ m}}
+
+\newcommand{\typ}[1]{\lstinline{#1}}
+
+\newcommand{\kwrd}[1]{ \texttt{\textbf{\color{blue}{#1}}} }
+
+% Title page
+\title{Your Title Here}
+
+\author[FOSSEE] {FOSSEE}
+
+\institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}
+\date{}
+
+% DOCUMENT STARTS
+\begin{document}
+
+\begin{frame}
+ \maketitle
+\end{frame}
+
+\begin{frame}[fragile]
+ \frametitle{Outline}
+ \begin{itemize}
+ \item
+ \end{itemize}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% All other slides here. %%
+%% The same slides will be used in a classroom setting. %%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[fragile]
+ \frametitle{Summary}
+ \begin{itemize}
+ \item
+ \end{itemize}
+\end{frame}
+
+\begin{frame}
+ \frametitle{Thank you!}
+ \begin{block}{}
+ \begin{center}
+ This spoken tutorial has been produced by the
+ \textcolor{blue}{FOSSEE} team, which is funded by the
+ \end{center}
+ \begin{center}
+ \textcolor{blue}{National Mission on Education through \\
+ Information \& Communication Technology \\
+ MHRD, Govt. of India}.
+ \end{center}
+ \end{block}
+\end{frame}
+
+\end{document}