Dave learns R: first plot

I am teaching myself R. My first goal is to plot the price-yield curve of a 10-year zero coupon bond, so I need to define the price function, and apply (i.e., lapply) the function to each element in a vector of yields. For my first step, this is a lot of fun. Very intuitive!

Category:

Education

Tags:

• statistics
• r software

[Riverdale270]

But still: very helpfull video so thanks for that!

[bionicturtledotcom]

@Riverdale270 thanks!

[smicha7]

Hi, another great video. Your code can be simplified. You can use "=" istead of "<-" but sometimes it is more convenient to use "<-". Tor time series plot there is a useful "ts.plot" funtion.

bp = function(y) 100*exp(-y*10)

ts.plot(bp(seq(0,.1,.01)))

G

[bionicturtledotcom]

@smicha7 oh, ts.plot() works! even though it's not a timeseries. This is fantastic, i'm actually learning from youtube. I wanted to use "=" but <-. You can also use =, but I read "[equal sign] is discouraged, as it does not work in some special situations. Norman Matloff, The Art of R Programming

[smicha7]

@bionicturtledotcom @bionicturtledotcom Yes, your example is scatter plot - sorry for this. Also if you are looking for any help type help.search("your word"). And maybe this might help, just google Farnsworth-EconometricsInR and choose first link.

[bionicturtledotcom]

@smicha7 oh, thank you for help.search(), i will be using that! yes, i realize it's technically a scatter but your ts.plot() works

[Riverdale270]

As a MATLAB user I can without doubt say that this would be much more intuitive in MATLAB, which is an often stated advantage of MATLAB. However, if you're used to something, I guess that's what works best for you. But I'm only going to let MATLAB go if I really can't find what I'm looking for (not that likely) or if R or another package provides a package I need and MATLAB does not have that package... (not very likely either... but you never now). Not all econometrics is in MATLAB so we'll see

[smicha7]

@smicha7 Sorry, it is a scatter plot, not time series.

[AlejandroBjorg]

R! Good idea, thank you! I have been wanting to get into R for some time.

[bionicturtledotcom]

@cwaddle I just opened it so i can't say yet, i have similar questions. I sort of can already see why R is popular in Big Data. IMO Excel is not really great for large data sets. I don't know about R graphing yet (mathematica is really strong there), but i think Excel is lame for graphing anything except the basics.