search for: zbynek

Displaying 12 results from an estimated 12 matches for "zbynek".

2011 Feb 28
3
Incorrectness of mean()
I have found following problem: I have a vector: > a <- c(1.04,1.04,1.05,1.04,1.04) I want a mean of this vector: > mean(a) [1] 1.042 which is correct, but: > mean(1.04,1.04,1.05,1.04,1.04) [1] 1.04 gives an incorrect value. how is this possible? thanks, zbynek -- View this message in context: http://r.789695.n4.nabble.com/Incorrectness-of-mean-tp3327701p3327701.html Sent from the R help mailing list archive at Nabble.com.
2011 Feb 25
5
Substituting inside expression
I am having following problem: I?m constructing model for calculation of area of triangle. I know sides a, b, and gamma angle. I wish to calculate the area using heron?s formula: S <- sqrt(s*(s-a)*(s-b)*(s-c)) where s <- (a+b+c)/2 and c is calculated using law of cosines: c <- sqrt(a^2 + b^2 -2*a*b*cos(gamma)) since i am calculating a regression model, i need derivation of this
2010 Sep 03
1
How to use lm() output for systemfit() 'Seemingly unrelated regression'
...nd where the problem is. The problem remains even when I try: > fo1 <- r98[,2] ~ f98[,1] + f98[,2] + ... + f98[,43] > fo2 <- r98[,1] ~ f98[,1] + f98[,2] + ... + f98[,43] instead of using lm() Could someone give me a hand? I am quite new to R, so possibly the solutions is simple:) Thanks Zbynek Janoska -- View this message in context: http://r.789695.n4.nabble.com/How-to-use-lm-output-for-systemfit-Seemingly-unrelated-regression-tp2525418p2525418.html Sent from the R help mailing list archive at Nabble.com.
2019 Aug 21
1
Core dumped - net ads dns gethostbzname
...e Description +++-==============-==============-============-============================= ======================================== ii? winbind??????? 2:4.9.5+dfsg-5 amd64??????? service to resolve user and group information from Windows NT servers root at hostxzy:~# Please advise. Thank you Zbynek
2010 Dec 20
2
How to optimize function parameters?
...h is not correct and cannot be used for further calculating. gafit() does not enable me to set a range of possible results (at least I did not succeded in doing so), therefore I am looking for another solution (Powell?s gradient descent possibly?). Can anyone give me a hint where to look? Thanks Zbynek -- View this message in context: http://r.789695.n4.nabble.com/How-to-optimize-function-parameters-tp3095603p3095603.html Sent from the R help mailing list archive at Nabble.com.
2019 Aug 13
3
winbind - frequent high CPU utilization
...s a hints. Current config: Debian 10 (Buster), 2CPU, 4GB RAM, 64bit winbind - 4.9.5+dfsg-5 samba - 4.9.5+dfsg-5 Connection information for squid (4.6): ??????? Number of clients accessing cache:????? 443 Additional info is here:? https://pastebin.com/U5idtgsv Thank you for hints. Zbynek
2003 Jan 15
1
Double NATed VPN
...nection failed with "GRE: Bad check chcksum from pppd" message. If I try connect to this VPN server from LAN then connection is estabilished well. I have rules DNAT net loc:10.1.4.20 tcp 1723 DNAT net loc:10.1.4.20 gre Can be problem with "double NAT"? Can you help please? Zbynek Cvach
2006 Apr 05
0
samba client
...dy //samba/public /mnt/pub CentOS complains as is listed in /var/log/messages Apr 5 13:25:36 pc1-002 kernel: smb_retry: no connection process and I have to cancel this operation by CTRL-C Apr 5 13:26:04 pc1-002 kernel: smb_delete_inode: could not close inode 2 Have anybody some sugesstion? -- Zbynek Dohnal sysadmin SSI Schafer s.r.o. Tovarni 325 753 01 Hranice tel. +420 581 820 216 fax. +420 581 820 299 email zbynek.dohnal at ssi-schaefer.cz gpg www.gpg.cz -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signatur...
2010 Dec 16
2
How can I draw a line in empirical distribution function?
I've got the graphic with this: a=c(120,40,75,85,55,75,55,90,90,55,155) plot(ecdf(a)) How can I draw lines to show the lower quatile and upper quartil? I only know there is the argument lines(), but I don't know how to use it -- View this message in context: http://r.789695.n4.nabble.com/How-can-I-draw-a-line-in-empirical-distribution-function-tp3090675p3090675.html Sent from the R
2011 Mar 25
0
applying random functions to multisets
...some construct, which would enable me to do this: while (initial.multiset IS NOT empty){ apply(random rule, if possible) return(new.multiset) } I tried to organize rules into list, but i don't know how to select randomly function from a list and apply it Any help would be appreciated Thanks Zbynek -- View this message in context: http://r.789695.n4.nabble.com/applying-random-functions-to-multisets-tp3405203p3405203.html Sent from the R help mailing list archive at Nabble.com.
2003 Jan 20
0
localization - dead keys
...9;t work "dead keys" and keyboard produce some other errors. I work on FreeBSD 4.7-STABLE, XFree86 4.2, with Czech environment; Wine 20021219. Is there enybody, who work with czech, slovak or polish (or another) environment with national keyboard, which uses "dead keys"? thanx Zbynek
2010 Aug 11
2
glusterfs on 32 bit - experiences?
I was wondering about general stability of glusterfs on 32 bit x86 Linux. I have it running without problems on some lightly used 32 bit systems, but this scares me a bit if I decided to use it in production[1]: While the 3.x versions of Gluster will compile on 32bit systems we do not QA or test on 32-bit systems. We strongly suggest you do NOT run Gluster in a 32-bit environment. I was