search for: 1970s

...iconv(readChar(con, nchars=640, useBytes = TRUE),from="IBM037",to="",sub="#") What I have found, however, is that ocassionally a record will contain a Null halfway through, which causes readChar() not to read the rest of the record. It is a very old database (from the 1970s I think), and I am not really sure why the Nulls are there. I do know that that after the occurence of the first Null, the record looks normal (it's not Nulls to the 640th byte). In any case, I would like to get the whole record and just put some placeholder, like a 0 or a #, in place of the Nu...

...ecade$Decade, extremes.decade$Month, col = extremes.decade$Extreme, cex = 1.2, xlab = "Decade", ylab = "Month", axes = F , pch = 16, seg.col = extremes.decade$Extreme, size = 0.2, seg.lwd =2) axis(side = 1, at = c(6:11), labels = c("","1960s","1970s","1980s","1990s","2000s"), tick = TRUE, line = NA) axis(side = 2, at = c(0:12), labels = c("","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct"...

As the original coder (in mid 1970s) of BFGS, CG and Nelder-Mead in optim(), I've been pushing for some time for their deprecation. They aren't "bad", but we have better tools, and they are in CRAN packages. Similarly, I believe other optimization tools in the core (optim::L-BFGS-B, nlm, nlminb) can and should be mo...

I have not been able to access the UJS site, http://www.ujs4rails.com/ for two days. Does that mean there are problems or that it has been incorporated into Rails core? In general, what do you think of using UJS instead of RJS? -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google

...ther workers will surely be able to suggest cases elsewhere. I was the source (in Pascal) of Nelder-Mead, BFGS and CG algorithms in optim(). BFGS is still mostly competitive, and Nelder-Mead is useful for initial exploration of an optimization problem, but CG was never very good, right from the mid-1970s well before it was interfaced to R. By contrast Rcgmin works rather well considering how similar it is in nature to CG. Yet I continue to see use and even recommendations of these tools in inappropriate circumstances. Given that it would break too many other packages and examples to drop the exist...

...ll surely be able to suggest cases elsewhere. > I was the source (in Pascal) of Nelder-Mead, BFGS and CG algorithms in optim(). > BFGS is still mostly competitive, and Nelder-Mead is useful for initial exploration > of an optimization problem, but CG was never very good, right from the mid-1970s > well before it was interfaced to R. By contrast Rcgmin works rather well > considering how similar it is in nature to CG. Yet I continue to see use and > even recommendations of these tools in inappropriate circumstances. > > Given that it would break too many other packages and e...

...t in Perl, but it would take way, way too much time. A specialized programming language is needed. And since data transformation is quite different from data query, SQL is not the ideal solution either. There are only three statistical programming languages that are well-known, all dating from the 1970s: SPSS, SAS, and S. SAS is more popular than S for data cleaning. If you're an R user with difficult data preparation problems, frankly you are out of luck, because the products I'm about to mention are new, unknown, and therefore regarded as immature. And while the founders of these produc...

On Mon, Nov 24, 2014 at 03:33:24PM +0100, Samson wrote: > > Trying 127.0.0.1... > telnet: connect to address 127.0.0.1: Connection refused Because telnet is 1970s tech that should die in a fire; it's not enabled by default nor does the firewall permit it by default. Why are you wanting to use telnet in the first place? John -- There is something fundamentally wrong with a system where not being charged with a war crime keeps you locked away i...

When I first installed my CentOS system the machine had only 1 GB. the swap memory was set to 2 GB Now the machine has 4 GB but swap is still 2 GB. With that much memory maybe it doesn't matter, but it sure looks odd. Is there any way to change it? Thanks, John -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA

Hi -- I have found that by default the function print.glm() uses 3 significant figures when printing out null and model deviances and the aic. Of course, this is not wrong. But if a person fitted two nested models and compared the resulting deviances obtained from print.glm(), the resulting hypothesis test could indeed be wrong because of this rounding. The function summary() applied to a glm

I'll not be able to comment on the use of C like this, but will warn that I wrote the routines that became Nelder-Mead, CG, and BFGS in optim() in the mid 1970s. CG never did as well as I would like, but the other two routines turned out pretty well. However, in nearly 40 years, there are a few improvements, particularly in handling bounds and masks (fixed parameters). For all-R routines see Rcgmin and Rvmmin. Rather than directly use the optim() routines...

Hello, could anybody direct me where to find code for optim.R? I was able to find the C code at http://docs.rexamine.com/R-devel/optim_8c.html, but the R version would be easier for me to work with and modify. Thank you! [[alternative HTML version deleted]]

...not about the money but about the attitude Sipura have shown. It is not very encouraging to put in 200-300 hours of your time to create a free tool for the community without asking anything in return only to see the company that will get more benefit than anybody else to give you an attitude like a 1970s IBM. My first thoughts were "Who are those guys anyway?" and "What have they done that they think they are better than the rest of us?", but then I thought "Hey, we are part of a community. Let's see if community spirit can change the attitude of those Sipura folks.&qu...

On Mon, Mar 4, 2019 at 5:01 PM J C Nash <profjcnash at gmail.com> wrote: > As the original coder (in mid 1970s) of BFGS, CG and Nelder-Mead in > optim(), I've > been pushing for some time for their deprecation. They aren't "bad", but > we have > better tools, and they are in CRAN packages. Similarly, I believe other > optimization > tools in the core (optim::L-BFGS-B, nlm...

Thank you Gabriel, Agree, although I think that could be relaxed in this single case and AsIs class could be ignored. Best, Jan On Sun, Mar 29, 2020 at 7:09 PM Gabriel Becker <gabembecker at gmail.com> wrote: > > Jan, > > I believe it's because it has "a non-NULL attribute other than names" as per the documentation. In this case its class of "AsIs". >

Full_Name: Jens Oehlschl?gel Version: 2.10.0 OS: Windows XP Professional Submission from: (NULL) (85.181.158.112) file.rename() will successfully rename file a to b - even if b exists already. Though the documentation does not state what file.rename() will do in this case, I guess the expected behaviour is to fail and return FALSE. Kind regards Jens Oehlschl?gel > cat("a\n",

The following is a message to be sent to the President of the United States of America. Although we may not be able to do a great deal from where we are, but for the people of America just knowing we care and feel their sadness will help. Please put your name on the following list and send it to all you know and who care. If you are the 100th name and every 100th there on could you please also

On Thu, 2015-01-08 at 09:35 -0700, Warren Young wrote: > Once a thing becomes reliable, it stops being technology. Oh No. Just because something works well it does not stop being "technology" unless the USA people, who have decimated my language (English), have a new definition for "technology". Warren are you serious that things that do not work well are

...more intricate data management could better be handled by folk outside the core. JN On 2019-03-04 9:12 a.m., Avraham Adler wrote: > On Mon, Mar 4, 2019 at 5:01 PM J C Nash <profjcnash at gmail.com <mailto:profjcnash at gmail.com>> wrote: > > As the original coder (in mid 1970s) of BFGS, CG and Nelder-Mead in optim(), I've > been pushing for some time for their deprecation. They aren't "bad", but we have > better tools, and they are in CRAN packages. Similarly, I believe other optimization > tools in the core (optim::L-BFGS-B, nlm, n...

Hi there, Is it possible to set different font family for strings in mtext or text? For example, on windows platform with windows() device: plot(1:10, type = "n") text(5,5, "Chinese (English)") #Chinese for Chinese characters it will give the correct Chinese and English characters with two different font family, i.e., English character in default sans family, and Chinese