r - How to pass a number of "x" arguments to a function that subset a data.frame and obtain "x" data.frames? -


i have question related applying different arguments in 1 function in order obtain different datasets.

i have created function takes data , filter it, according value of arguments in function (i haven't write full function becasue thought complicates more explanation of question).

the function looks this:

myfun (type, spp, incl){      #something subset data according     # type, spp, incl values, , gives output      # data frame called datanalyisis      datanalysis }

if consider potential values function arguments are:

type <- c("1", "2", "3", "4") spp <- c( "spruce", "pine","birch") incl <- c("no", "yes") varoptions <- list(type, spp , incl) varoptions.grid <- expand.grid(varoptions)

i 24 potential combination arguments values. goal use combination of argument values, obtained in "varoptions.grid", in function. , result should 24 different datasets.

i have tried this:

var1 <- as.vector(as.character(varoptions$var1)) var2 <- as.vector(as.character(varoptions$var2)) var3 <- as.vector(as.character(varoptions$var3))  finaldata <- mapply ("myfun", type =.var1, spp = .var2, incl=.var3))

i think obtaining huge array processes. believe missing understanding in how mapply works or using incorrect process solve problem.

if have input in how solve apreciate!, 3th day stuck in problem :(

thank time!


Comments

Post a Comment

Popular posts from this blog

php - failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request -

this code i'm using find latitude , longitude of place: function coords($address){ echo $url="http://maps.googleapis.com/maps/api/geocode/json?address=".$address; $json = file_get_contents(urlencode($url)); $data = json_decode($json, true); print_r($data['results'][0]['geometry']['location']['lat']); print_r($data['results'][0]['geometry']['location']['lng']); } however returns warning: failed open stream: http request failed! http/1.0 400 bad request if use above code in simple procedure works fine not in function. note: have tried curl_init()... method produced same result? instead of encoding whole url encode address part. following code work fine $add='jamshoro phase 2'; $url="http://maps.googleapis.com/maps/api/geocode/json?address=".urlencode($add); $json = file_get_contents($url); $data = json_decode($json, true); print_r($data['r
Read more

java - How to filter a backspace keyboard input -

i have code gives message when key number pressed: txtvalueofclause.addeventfilter(keyevent.key_typed, new eventhandler<keyevent>() { @override public void handle(keyevent t) { char ar[] = t.getcharacter().tochararray(); char ch = ar[t.getcharacter().tochararray().length - 1]; if (!(ch >= '0' && ch <= '9')) { system.out.println("the char entered not number"); t.consume(); } } }); now if press on wrong button , press backspace remove it, error message. how can add backspace input if statement? i have found answer: txtvalueofclause.addeventfilter(keyevent.key_typed, new eventhandler<keyevent>() { @override public void handle(keyevent t) { char ar[] = t.getcharacter().tochararray(); char ch = ar[t.getcharacter().tochar
Read more

java - Show Soft Keyboard when EditText Appears -

i have code in android app, alert dialog , keyboard, , when dialog shown want keyboard appear. not , not sure why? here code: final alertdialog.builder alert = new alertdialog.builder(this); alert.settitle("title"); alert.setmessage("message"); final edittext input = new edittext(this); input.setinputtype(inputtype.type_class_number); alert.setview(input); input.setonfocuschangelistener(new view.onfocuschangelistener() { @override public void onfocuschange(view v, boolean hasfocus) { if (hasfocus) { log.i(tag, "in focus"); inputmethodmanager inputmethodmanager = (inputmethodmanager) getsystemservice(context.input_method_service); inputmethodmanager.showsoftinput(input, inputmethodmanager.show_implicit); } } }); but keyboard not appear though edit text in focus, , tell appear why, doesn't come up? thanks in advance.
Read more