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  • Error: (subscript) logical subscript too long

    - by frespider
    Can some one let me know why I am getting this error and how I can fix it? Here is the code What I am trying to do is remove the rows that associated 1's if the column of that one's less than 10 a0=rep(1,40) a=rep(0:1,20) b=c(rep(1,20),rep(0,20)) c0=c(rep(0,12),rep(1,28)) c1=c(rep(1,5),rep(0,35)) c2=c(rep(1,8),rep(0,32)) c3=c(rep(1,23),rep(0,17)) c4=c(rep(1,6),rep(0,34)) x=matrix(cbind(a0,a,b,c0,c1,c2,c3,c4),nrow=40,ncol=8) nam <- paste("V",2:9,sep="") colnames(x)<-nam dat <- cbind(y=rnorm(40,50,7),x) #=================================== toSum <- colSums(dat) Col <- Val <- NULL for(i in 1:length(toSum)){ if(toSum[i]<10){ Col <- c(Col,colnames(dat)[i]) Val <- c(Val,toSum[i])} } cs <- colSums(dat) < 10 indx <- dat[,which(cs)]==0 for(i in 1:dim(indx)[2]){ datnw <- dat[indx[,i],] dat <- datnw} datnw2 <- dat[, -which(cs)] Thanks

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  • Windows7 hardlink over two different drives

    - by Sandro
    I am trying to create a hardlink on my C drive that points to a file on my D drive. I open up a terminal with Administrator privileges and try the following: C:\Users\sandro>mklink /H _vimrc D:\sandro-desktop\.vimrc The error that I get is: The system cannot move the file to a different disk drive. When I try a softlink I get the issue that for some reason changes to the link contents aren't reflected on the targeted file. Thank you!

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  • Bluray Drives: 2x vs 4x vs 6x vs 8x read/writespeed.

    - by Wesley
    Hi all, I couldn't find a duplicate question, but I was wondering what the differences are between different read/write speeds for Bluray drive. I'm planning on buying one for a build but don't know if I can cheap out on getting a Bluray 2x drive or spend more money for a quality Bluray 8x drive. Will I just experience more lag/buffering times for Bluray discs on a 2x and none for a 6x or 8x? Thanks in advance.

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  • What usb-bootable utility should I use to copy SATA hard drives?

    - by Steve Brown
    I have a computer that only has two SATA connections and I need to copy one SATA hard drive to another. Since I have to unplug the CD drive to copy the drives I need a USB-bootable utility. I have an old school copy of Norton Ghost (CD based): Ghost has always worked well for me in the past - I see there is a new "version 15" out but I'm not sure if it is worth buying. A friend has Acronis True Image on a USB drive: We tried to use that on the computer but it was unable to copy both partitions (restore partition and main partition). Of course there may be some problem with the drive that is keeping Acronis from working (it is just exiting with a lame error about not being able to copy the disks and no error code or detailed information), but I'm interested in knowing if there is a better, more solid, or widely used solution that I should invest in. What usb-bootable utilities can I use to copy SATA hard drives?

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  • Windows 7 boot from downloaded .iso

    - by Travis
    Downloaded Windows 7 .iso off the net and want to install from USB key on old laptop (previously/still running XP) that has no CD/DVD drive. Here's what I've got so far: Read the instructions in this post: http://kmwoley.com/blog/?p=345 , which were quite straight forward and clear. Properly formatted USB key with another laptop (this one running vista), also with no DVD drive wasn't sure how to make the USB bootable, since my .iso was downloaded and I have no DVD drive. Any help would be much appreciated!!

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  • jquery selector logical AND?

    - by taber
    In jQuery I'm trying to select only mount nodes where a and b's text values are 64 and "test" accordingly. I'd also like to fallback to 32 if no 64 and "test" exist. What I'm seeing with the code below though, is that the 32 mount is being returned instead of the 64. The XML: <thingses <thing <a32</a <-- note, a here is 32 and not 64 -- <other...</other <mountsample 1</mount <btest</b </thing <thing <a64</a <other...</other <mountsample 2</mount <btest</b </thing <thing <a64</a <other...</other <mountsample 3</mount <bunrelated</b </thing <thing <a128</a <other...</other <mountsample 4</mount <bunrelated</b </thing </thingses And unfortunately I don't have control over the XML as it comes from somewhere else. What I'm doing now is: var ret_val = ''; $data.find('thingses thing').each(function(i, node) { var $node = $(node), found_node = $node.find('b:first:is(test), a:first:is(64)').end().find('mount:first').text(); if(found_node) { ret_val = found_node; return; } found_node = $node.find('b:first:is(test), a:first:is(32)').end().find('mount:first').text(); if(found_node) { ret_val = found_node; return; } ret_val = 'not found'; }); // expected result is "sample 2", but if sample 2's parent "thing" was missing, the result would be "sample 1" alert(ret_val); For my ":is" selector I'm using: if(jQuery){ jQuery.expr[":"].is = function(obj, index, meta, stack){ return (obj.textContent || obj.innerText || $(obj).text() || "").toLowerCase() == meta[3].toLowerCase(); }; } There has to be a better way than how I'm doing it. I wish I could replace the "," with "AND" or something. :) Any help would be much appreciated. thanks!

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  • HDD cannot be booted from

    - by K.Wong
    I have an ASUS A52F, no mods, with Win7 preinstalled. There is one hard drive, two partitions, one for the OS (C:) and one for data (D:) After laptop trauma, i.e. I dropped it, it still worked fine. However, when chkdisk was run on the C: drive chkdisk crashed, and Windows is unbootable. Windows Startup Manager utility was run, but error code 0xc00000e9 was given. Windows help db shows that this is a BIOS problem, however in BIOS setup the drive can be accessed, and folders can be shown. I also burned a Ubuntu 12.04 distro, and booted off it, but my internal HDD is missing and cannot be accessed. When installation program is run the HDD shows up as a location to install to yet the drive is shown as blank. tl;dr: HDD damaged, chkdisk crashed. Windows 7 is unbootable. Given error code, according to Microsoft db, is a BIOS problem, yet in BIOS the drive is accessible. different OS (Ubuntu 12.04), booted off a distro, yet HDD is inaccessible. Quick help appreciated.

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  • How to remove iso 9660 from USB?

    - by a_m0d
    I have somehow managed to write an iso 9660 image onto my USB drive, which makes all my computer think that the device is actually a CD. I have tried various methods of removing this partition, but nothing seems to work. I have tried fdisk, which says $ fdisk -l /dev/sdb Cannot open /dev/sdb parted crashes when I try to use it on this device. I have even tried $ dd if=/dev/zero of=/dev/sdb but it just hangs with no output (either on screen or on disk). However, when I plug the USB in, it does mount, and I can view (but not edit) the files on it. edit: now the result is $ dd if=/dev/zero of=/dev/sdb dd: opening `/dev/sdb': Read-only file system I have also tried re-formatting it on Windows, but it gets to the end of the format process and then says "Couldn't format the drive". How can I remove this partition and get my whole USB drive back to normal again? EDIT 1: Trying a simple mkfs doesn't work: $ sudo mkfs -t vfat /dev/sdb mkfs.vfat 3.0.0 (28 Sep 2008) mkfs.vfat: Will not try to make filesystem on full-disk device '/dev/sdb' (use -I if wanted) I can't do mkfs on /dev/sdb1 because there is no such partition, as shown:$ ls /dev | grep sdb sdb EDIT 2: This is the information posted by dmesg when I plug the device in:$ dmesg . . (snip) . usb 2-1: New USB device found, idVendor=058f, idProduct=6387 usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 2-1: Product: Mass Storage usb 2-1: Manufacturer: Generic usb 2-1: SerialNumber: G0905000000000010885 usb-storage: device found at 4 usb-storage: waiting for device to settle before scanning usb-storage: device scan complete scsi 6:0:0:0: Direct-Access FLASH Drive AU_USB20 8.07 PQ: 0 ANSI: 2 sd 6:0:0:0: [sdb] 4069376 512-byte hardware sectors (2084 MB) sd 6:0:0:0: [sdb] Write Protect is off sd 6:0:0:0: [sdb] Mode Sense: 03 00 00 00 sd 6:0:0:0: [sdb] Assuming drive cache: write through sd 6:0:0:0: [sdb] 4069376 512-byte hardware sectors (2084 MB) sd 6:0:0:0: [sdb] Write Protect is off sd 6:0:0:0: [sdb] Mode Sense: 03 00 00 00 sd 6:0:0:0: [sdb] Assuming drive cache: write through sdb: unknown partition table sd 6:0:0:0: [sdb] Attached SCSI removable disk sd 6:0:0:0: Attached scsi generic sg2 type 0 ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A SELinux: initialized (dev sdb, type iso9660), uses genfs_contexts CE: hpet increasing min_delta_ns to 15000 nsec This shows that the device is formatted as ISO 9660 and that it is /dev/sdb. EDIT 3: This is the message that I find at the bottom of dmesg after running cfdisk and writing a new partition table to the disk:SELinux: initialized (dev sdb, type iso9660), uses genfs_contexts sd 17:0:0:0: [sdb] Device not ready: Sense Key : Not Ready [current] sd 17:0:0:0: [sdb] Device not ready: < ASC=0xff ASCQ=0xffASC=0xff < ASCQ=0xff end_request: I/O error, dev sdb, sector 0 Buffer I/O error on device sdb, logical block 0 lost page write due to I/O error on sdb

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  • What is the easiest/simplest way to change the HD on a Linux server?

    - by ArmlessJohn
    Hello. I have a machine running Ubuntu Server that has been presenting some HD-related problems. Instead of reinstalling and reconfiguring everything (and to save time) we'd like to copy everything from the current hard drive to a new one and start using it. We only have a single hard drive with a main partition and a swap partition. What tools or methods would you recommend for replacing a hard drive with minimum difficulty and chance of problems? Thank you.

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  • Windows XP - removing write protection for usb drives

    - by Arnold
    I have a laptop who used to belong to my company and when I plug in a usb memory drive, I cannot write any files to it. This is because company policy did not allow writing to usb drives without a special authorization (to prevent theft of files). However the laptop is now mine, and I was given the administrator password, so I am guessing that as administrator I can remove this protection somehow. How can I do this? Currently if I try to copy a file to the drive, Windows simply tells me that the drive is write-protected, whatever usb drive I plug in. Maybe it is some registry setting? Thank you.

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  • using LIKE with logical operators

    - by ryanthegecko
    i can't seem to figure out how to combine LIKE with an OR or AND: DELETE * FROM persons WHERE FirstName = 'Abe' AND LastName LIKE '%coln'; Looks like it should owrk to me but I get error 1064 (syntax0 Is there a correct way to do this?

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  • Computer won't boot from a bootable DVD

    - by JohnB
    My friend gave me his old computer that used to have WinXP on it. I'm trying to load Win7 on it and I thought there was something wrong because it wouldn't boot off a bootable disc, even though I setup the BIOS boot settings properly (I've done this sort of thing a million times). However, this closely related post helped me realize that I can boot off a bootable CD (WinXP), just not a DVD (Win7) Computer won’t boot from CD/DVD drive That might be the answer to my question, however, this motherboard is still pretty current technology. It's a good quality Gigabyte board, and judging from this product page, it came out in 2004. If I can't figure out a solution to my DVD boot problem, I'll have to try something like this: Boot and Install Windows from a USB thumb drive I guess it's possible that this motherboard doesn't allow booting from a DVD, but I still think that I might be missing something. It wouldn't be the DVD rom drive would it? I did try another drive and had the same results. However, I didn't try booting a DVD in the computer that the other test drive came out of, I'll do that later today. Any other advice? Thanks.

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  • SATA Backward compatibility? [closed]

    - by Fladur
    Possible Duplicate: Can I connect a SATA-II hard drive to a SATA-I connection? Hello everyone One of my system is really old, but I still use it, right now, the HDD is and old IDE drive that is starting to fail (I got to many damaged sectors) and I'm planing to replace it. The motherboard supports Serial ATA 1 and I have a real nice offer on a SATA 2 drive, can I use that drive on a SATA 1 interface (obviously with reduced speed) just like a USB 2.0 device on a 1.0 port? Thanks in advance.

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  • not a valid iso file error

    - by user23950
    I'm trying this windows 7 usb/dvd download tool that I discovered from ars technica: http://arstechnica.com/business/news/2009/12/-the-usb-flash-drive.ars But I don't know why my windows 7 iso file does not work and its saying that its not a valid iso file. What do I do, do you know of other tools that can burn / extract iso file contents to a flash drive? Except the tool that is always showing up when you search in google, the command prompt one: http://arstechnica.com/business/news/2009/12/-the-usb-flash-drive.ars/2 A free tool for windows xp or 7

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  • Windows OS's cannot boot on new internal harddrive

    - by Kothari
    I have installed a new internal 500GB hard drive into a Dell Inspiron N4030 and it appears that the installation was entirely successful. The BIOS recognizes the drive and shows the serial number of the hard drive. The problem is that I cannot boot any Windows OS. I have tried XP, Vista, Windows 7 and Windows 8. It displays only a black screen with a blinking cursor. Fedora boots successfully. My old hard drive crashed, but would atleast boot up these OS's before it died. Any help?

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  • 10,000 RPM HDD (WD VelociRaptor) vs SSD for OS?

    - by GiH
    I currently have a 10,00RPM 150GB Raptor that I use for Vista. I'm about to upgrade to Windows 7, and while doing that I thought I'd buy another drive and install Ubuntu 9.10 on it. I don't want to partition the current drive I have, but I don't need 150GB for another OS. So, I'm having trouble deciding whether its worth it to buy a 64 GB SSD at the same price point as the 150GB WD VelociRaptor? Or should I just get a 7,200 RPM drive for really cheap (around $50)? Would it be better to use an SSD for the OS than a mechanical drive? I could always get a 32GB SSD too... Oh, and I don't want to virtualize Ubuntu because I'm going to be testing to see the differences in networking and overall performance.

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  • Add Mirror for volumes other than the last one in Windows 7 (disk "not up-to-date")

    - by rakslice
    I'm using Windows 7 x64 Ultimate. I have an existing 4TB disk with 3 NTFS volumes, a new 3TB blank disk, and I'm trying to mirror the volumes onto the new disk. My Windows install is on an SSD which is Disk 0. The 4TB disk with volumes is Disk 1, and the new blank disk is Disk 2. I can add a mirror successfully for the last volume, but when I try to add a mirror for the first volume I immediately get errors (see below). Is there something I special I need to do to add a mirror for a volume other than the last one? More info: I opened Disk Management, right-clicked on the first volume on the existing disk, went to Add Mirror, and selected the new disk. The first time I did this I was prompted to convert the new disk to a Dynamic Disk, which I approved. Subsequently I got a message: The operation failed to complete because the Disk Management console view is not up-to-date. Refresh the view by using the refresh task. If the problem persists close the Disk Management console, then restart Disk Management or restart the computer. I've refreshed disk management, restarted the computer, and converted the new disk to basic and back to dynamic, but I still get that error message. Looking around for suggestions of a workaround, I saw a suggestion to use the diskpart command line tool. Running diskpart from the Start Menu as Administrator, I did select volume 2 (the first volume I want to mirror) and then add disk 2 (the new disk), and received a somewhat similar error: Virtual Disk Service error: The disk's extent information is corrupted. DiskPart has referenced an object which is not up-to-date. Refresh the object by using the RESCAN command. If the problem persists exit DiskPart, then restart DiskPart or restart the computer. A rescan appears to be successful: DISKPART> select disk 2 Disk 2 is now the selected disk. DISKPART> rescan Please wait while DiskPart scans your configuration... DiskPart has finished scanning your configuration. but attempting to add the mirror again resulted in the same error. The only similar report I found online was this: http://www.sevenforums.com/hardware-devices/335780-unable-mirror-all-but-last-partition-drive.html Based on that I attempted to mirror the last volume on the disk to the new disk using diskpart, and that started successfully -- it is currently resynchronizing. More Background: In the course of dealing with a failing 3TB hard drive, I bought a replacement 4TB drive and installed it, then copied the partitions from the failing drive to it using Minitool Partition Wizard Home, and then removed the failing drive and was up and running again normally. Now I've received a warranty replacement for the failing drive, and installed it, and now I'm attempting to mirror my partitions to it.

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  • HP Usb storage Format tool : Error

    - by Srin
    I have a 2 GB Kingston Usb drive. This is working fine- I am able to format and access from 'My computer' I am trying to format this drive using HP USB Storage format tool to load a bootable image on to the drive, it says "device media is write protected" OS : Windows XP what could be wrong ? Thanks!

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  • Data Recovery needed with a Sector Zero problem on a HDD

    - by Jay Robins
    Left my computer (running XP) copying files to an external drive. Came back a few hours later, and the laptop was pretty hot and had frozen (Ironic aint it). Forced a reboot, and the laptop HDD hasnt worked since. Set it up in an external enclosure, but XP cant mount the HDD to a drive letter, but is able to recognize the manufacturer and drive size (Hitachi-320GB). No noise or rattling when the drive is spinning, but I cant get anything off of it, since i cant mount it, or see much of anything. Computer repair shop ran some software tests and says it came back with a "Zero Sector bad" message, and need to send it to a professional data recovery service. Any other options or ideas, before I have to spend thousands of dollars to recover my data? Any help would be GREATLY appreciated!!! I'm desperate and a poor student! Thanks in Advance, -Jay

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  • prevalent, recurring hardrive failure intel macbook from 2006/2007

    - by SimonSalman
    Hi, Long story: My MacBook's hard drive failed one year ago, just a month after its warranty ended or: a year and a month after I bought it. After about ten phone calls to Apple's service, they agreed to extend the warranty for another year, so that I got it replaced free of charge. In the mean time, I got to know that many MacBook users that experience/report hard drive failures. Every reported crash was preceded by a slowdown of system performance, an increased occurrence of the spinning beach ball wait courser, and frequent crashes of applications that used to run very robust until then. It happened (as far as I know) with MacBooks from 2006/2007. All these MacBooks additionally suffer from a recurring wearing down of their "top case". Many heavy users had to replace their HDDs three time since 2006/2007 resulting in an head crash, making it impossible to recover data (diagnosis of recovery specialists) in most but not all cases HDD was Seagate (doesn't necessarily have to be the cause, if majority of the MacBook charge contained Seagate drives) And right now (one year after my first disk crash), these symptoms are cumulating on my system, again ... Short version: prevalent hard drive failure on MacBook charge from 2006/2007 (i.e. 2.16 GHz Intel Core 2 Due) I am looking for any (preferable open source) tool for checking the hard drive condition, especially to detect the known "MacBook problem". So, that I can replace the disk on time. If any Mac user found a solution to prevent the repeated failure of heir hard drive, I would be very glad to get to known it. I really enjoy my old MacBook, but I hate to get interrupted every year by an HDD crash. BTW, the issue is already in discussion for a long time, but there seems to be no solution, so far. Thanks, Simon

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  • Building a PC for Work and play? [closed]

    - by Derek Organ
    Ok, Its been a long time since I build my own PC so I'm looking to get back into it again and build a new one. First off budget is about €800 excluding the monitor and windows 7 licence and mouse. (just bought a new g500) I plan on using my computer for work, lots of applications open at once but none particularly excessive (photoshop being the most demanding, mostly coding tools) I also use it for some gaming, e.g. COD, Starcraft etc. One thing I do want to do eventually is get a really good monitor with hight resolution and maybe 27" so the graphics card needs to be able to make best use of that. So a few questions 1) Is the bottle neck in performance mostly still the harddrives? 2) Aren't most processors e.g. i5 etc even i3 so far a head of other bottlenecks it makes litte difference the higher you go. Isn't the Graphics card dealing with heavy graphics so what really slows because of a slow CPU? So from this my thinking is to get a SSD drive as my primary drive for OS etc and have loads of memory e.g. 6-8GB and a decent mid level graphics card? It doesn't seem at my level worth spending much on CPU and any other parts really. I basic parts off the top of my head Case, Motherboard CPU SSD Drive SATA Drive Power Supply Memory Cooling (fan?) Graphics Card Network Card Keyboard DVD drive Mouse Windows Monitor Am I missing anything? Any helpful tips or general education much appreciated. Thanks, Derek

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  • Linux for a laptop? [closed]

    - by spriteless
    I would like to install Linux on a laptop. So I have emptied the hard drive, and can boot off a CD. So far I have failed to format the hard drive to Linux, to install Linux, and to change it so that I don't have to hit escape when loading in order to boot from CD (or get Linux on the hard drive and boot to it). The old laptop has 640 MB RAM, 600*800 screen, a CD drive and USB mouse and floppy drives. I eventually mean to use it to look at PDFs if possible, or RTFs that I converted from PDFs if not.

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  • T-SQL aggregate function Logical error

    - by Yoda
    Hi Guys, Ok I have a data table containing duplicate Reciept numbers and a transaction value for each record, I need to simply list the total for each unique Reciept number, this is obviously a simple problem but I am missing something. Any help is much appriciated > SELECT Gf_Receipt_number AS Reciept, > SUM (Gf_Amount) AS Total FROM > [TestP].[dbo].[Gf] WHERE > Gf_Receipt_number IS NOT NULL GROUP > BY Gf_Amount Would probably help to mention the the error I am recieving is: Column 'TestP.dbo.Gf.Gf_Receipt_number' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause.

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