reading values from a file!!

[devarshi77]

hi im new here and need some guidance as i dont wan swim any longer!
the problem is that i have created a file in R and i want to read p-values from the file. the file has 1000 simulations. someone told me that c can do it effortlessly.
this is the final aim of the project im workin on:

i wan to read the file and give me the list of p-values smaller than 0.05 .


the file output looks like this (1000 such observations) :
------
One sample Kolmogorov-Smirnov Test of Composite Normality

data: y
ks = 0.1062, p-value = 0.5
alternative hypothesis: True cdf is not the normal distn. with estimated parameters
sample estimates:
mean of x standard deviation of x
0.7940168 0.8786753
------------
if anyone can show me a way out of this, i d appreciate.

best

 

[stefanwagner]

I would use sed, to get all the p-values.
I would use sort to get them ordered:
Then I would cut manually at the right position.

sed -n 's/.*, p-value = \([0-9\.]*\)/\1/g' file | sort  -n

On linux and unix-systems, sed and sort are standard-tools.
On windows, you get them as gnu-utils when asking google.

seeking a job as java-programmer in Berlin:

http://home.arcor.de/hirnstrom/bewerbung

 

[devarshi77]

hi stefanwagner
the thin is that i made this in S plus 2000 and there is a syntax in that goes like this (i hope im close to what i want):

scan(file="", what=numeric(), n=<<see below>>, sep=<<see below>>,
multi.line=F, flush=F, append=F, skip=0, widths=NULL,
strip.white=<<see below>>)



though it makes little sense to me as im from a non computin background. im doin my masters in app stat and hence this data simulation and subsequent analysis of p values!

thanks any way for your prompt reply and your concern.
take care

 

[stevexff]

devarshi77

What information do you want to extract from the file when the p-value is les than 0.05? I'm guessing you want more than just a count of the number of p-values that qualify.

Also, you say you have made the file in R. The format is a bit nasty, do you have any control over what the output file looks like? It would be much easier to parse if you could change the format to make it less verbose, for example

0.1062, 0.5, 0.7940168, 0.8786753

whic could be read directly from a spreadsheet.