search for: yuchen

...smaller value? The manual that comes with the R software about nls( ) is very sketchy --- the only relevant example I see is a separate command like 2). A more relevent question might be, is lower the 'minFactor' the only solution to the problem? What are the other options? Best Wishes Yuchen Luo [[alternative HTML version deleted]]

...[1] "NULL" It seems that only the last 'if' phrase works. Is it an instrinsic weakness of R? Is there a way to get around it? ( I use 'elseif' to get around this when there are only two cases to choose from, but what if there are more than two cases to choose from?) Best Yuchen [[alternative HTML version deleted]]

...expression and I use function D to find its derivative, which will be even longer. I save the resulting expression in a variavle, say bbb. But when I tried to display bbb on the screen, the R screen is not long enough for me to view it. Is there a way to save the expression to a file? Best Wishes Yuchen Luo [[alternative HTML version deleted]]

...ond list as a second column, so that the two columns will lie side by side to each other and I can easily compare their elements. ( If I use 'appened=TRUE', the second time series will be stored in the same column. ) Thank you for your tine and your help will be highly appreciated!! Best Yuchen Luo [[alternative HTML version deleted]]

Dear collegues. I am using scan( ) to read from a table (a csv file). I am wondering how to let the program know that the end of the file is reached? Your help will be highly appreciated! Best Wishes Yuchen Luo [[alternative HTML version deleted]]

...shrout=1.1, prc=1.1, mkt_cap=1.1, rtng=1.1, sec=1.1, cr3m=1.1, cr5y=1.1, ust3m=1.1, ust5y=1.1), flush=TRUE, nlines=1,quiet=T) ... } The problem is how to articulate "while (the end of the table has not been reached)", or equivalently, how to signal the end of the table? Best Wishes Yuchen Luo [[alternative HTML version deleted]]

...file, I need to add at least one row in the table up front. How ever, I do not have the first loop of the program completed yet at that time. If I add a row that is meaningless, how may I delete it after all the loops are completed and all the meaningful rows are added to the table? Best Wishes Yuchen Luo [[alternative HTML version deleted]]

...UE, nlines=1) d2 R Output: ------------ $name [1] "Tom" $wife [1] "Joy" $no.kids [1] 9 ---------------------- My question is, how to manipulate the pointer of the file further? For example, what if I need the pointer to go back to the previous row? Best Wishes Yuchen Luo [[alternative HTML version deleted]]

...way out of this? I am actually trying to translate a fortran code to R and the function I want to replace is DBCPOL, which used 'the complex method" described in Nelder and Mead (1965) and Gill et al. (1981). I believe contrOptim is better than it because it is newer, is it? Best Wishes Yuchen Luo [[alternative HTML version deleted]]

Can you please reconfigure and attach the full log of 'make VERBOSE=1' ? On Nov 20, 2013 8:25 AM, "Yuchen Wu" <yuchenericwu at hotmail.com> wrote: > It looks like it: > > [/Volumes/Files/yuchen_wu/dev/llvm/build]$ xcrun --show-sdk-path --sdk > iphonesimulator > > /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0...

...… …etc. I do not want to manually change a little bit of the code to read a different file and write to a different file every time. I want the program to be able to loop through all the files. My question is, how to loop through the 48 files? Your help will be highly appreciated! Best Wishes Yuchen Luo [[alternative HTML version deleted]]

...glider at google.com> wrote: > Do you have the iossim sdk installed on your machine (check by 'xcrun > --show-sdk-path --sdk iphonesimulator')? > If the answer is yes and you're testing on ToT, that's a bug. I'll take a > look. > On Nov 20, 2013 5:05 AM, "Yuchen Wu" <yuchenericwu at hotmail.com> wrote: > >> Compiler-rt is broken for me. I'm compiling with top of trunk llvm, clang >> and compiler-rt using automake on Darwin. >> >> Is anyone else seeing this error? >> >> llvm[4]: Copying runtime library d...

...k it is because every time R reads, it needs to start from the first row of the file and count xxx rows to find the row it needs to read. Therefore, it takes more time for R to locate the row it needs to read. Is there a solution to this problem? Your help will be highly appreciated! Best Wishes Yuchen Luo [[alternative HTML version deleted]]

...ounter a problem, the whole program stops. In my case, the 3rd nls() runs into a problem. I would still need the program to run the remaining 217 nls( )! Is there a way to make the program skip the problematic nls() and complete the ramaining nls()'s? Your help will be highly appreciated! Yuchen Luo [[alternative HTML version deleted]]

It looks like it: [/Volumes/Files/yuchen_wu/dev/llvm/build]$ xcrun --show-sdk-path --sdk iphonesimulator /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk ________________________________ > Date: Wed, 20 Nov 2013 08:03:21 +0400 > Subject: Re: [LLVMdev] Can't com...

...he information. How ever, I need to fit a different set of x and y in every loop of my code and I need to store the estimated values for further use. I have checked both the online manual and several S-plus books but no example as such showed up. Your help will be highly appreciated! Best Wishes Yuchen Luo [[alternative HTML version deleted]]

...orm/clang_darwin.mk 91:ifneq ($(IOSSIM_SDK_PATH),) 157:IOSSIM_SDK_PATH := $(call XCRunSdkPath,iphonesimulator) 158:$(warning clang_darwin.mk: $(IOSSIM_SDK_PATH)) 161: -isysroot $(IOSSIM_SDK_PATH) \ 207: -mios-simulator-version-min=7.0 -isysroot $(IOSSIM_SDK_PATH) On 2013 Nov 19, at 20:48, Yuchen Wu <yuchenericwu at hotmail.com> wrote: > I'm running Mavericks. I'll attach the make log once it's done. > > ________________________________ >> Date: Wed, 20 Nov 2013 08:40:12 +0400 >> Subject: RE: [LLVMdev] Can't compile compiler-rt, asan error >...

I'm running Mavericks. I'll attach the make log once it's done. ________________________________ > Date: Wed, 20 Nov 2013 08:40:12 +0400 > Subject: RE: [LLVMdev] Can't compile compiler-rt, asan error > From: glider at google.com > To: yuchenericwu at hotmail.com > CC: llvmdev at cs.uiuc.edu > > > Also, which version of OSX you're running? > > On Nov 20, 2013 8:32 AM, "Alexander Potapenko" > <glider at google.com<mailto:glider at google.com>> wrote: > > Can you please reconfi...

Also, which version of OSX you're running? On Nov 20, 2013 8:32 AM, "Alexander Potapenko" <glider at google.com> wrote: > Can you please reconfigure and attach the full log of 'make VERBOSE=1' ? > On Nov 20, 2013 8:25 AM, "Yuchen Wu" <yuchenericwu at hotmail.com> wrote: > >> It looks like it: >> >> [/Volumes/Files/yuchen_wu/dev/llvm/build]$ xcrun --show-sdk-path --sdk >> iphonesimulator >> >> /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Devel...

...($(IOSSIM_SDK_PATH),) > 157:IOSSIM_SDK_PATH := $(call XCRunSdkPath,iphonesimulator) > 158:$(warning clang_darwin.mk: $(IOSSIM_SDK_PATH)) > 161: -isysroot $(IOSSIM_SDK_PATH) \ > 207: -mios-simulator-version-min=7.0 -isysroot $(IOSSIM_SDK_PATH) > > On 2013 Nov 19, at 20:48, Yuchen Wu <yuchenericwu at hotmail.com> wrote: > >> I'm running Mavericks. I'll attach the make log once it's done. >> >> ________________________________ >>> Date: Wed, 20 Nov 2013 08:40:12 +0400 >>> Subject: RE: [LLVMdev] Can't compile comp...