nlm

Error in f(x, …) : argument “x” is missing, with no default in nlm

由 有些话、适合烂在心里 提交于 2019-12-25 09:48:47
问题 rm(list=ls(all=TRUE)) data <- read.csv("con.csv", header=TRUE, sep = ",") x <- data$X0 n = length(x); T1 <- 1 f <- function(a,b) { L <- (n*log(a))+(n*a*log(T1))+(n*a*log(b))-(n*log((T1^a)-(b^a)))- ((a+1)*sum(log(b+x))) return(-L) } ML <- nlm(f, c(0.01,0.17)) Result in Error in f(x, ...): argument "x" is missing, with no default help me to figure out error and solution to solve it out 回答1: The argument passed to the function f must be a single vector. Here is the correct definition: f <-

Error in f(x, …) : argument “x” is missing, with no default in nlm

由 别等时光非礼了梦想. 提交于 2019-12-25 09:48:09
问题 rm(list=ls(all=TRUE)) data <- read.csv("con.csv", header=TRUE, sep = ",") x <- data$X0 n = length(x); T1 <- 1 f <- function(a,b) { L <- (n*log(a))+(n*a*log(T1))+(n*a*log(b))-(n*log((T1^a)-(b^a)))- ((a+1)*sum(log(b+x))) return(-L) } ML <- nlm(f, c(0.01,0.17)) Result in Error in f(x, ...): argument "x" is missing, with no default help me to figure out error and solution to solve it out 回答1: The argument passed to the function f must be a single vector. Here is the correct definition: f <-

Error in optim: function cannot be evaluated at initial parameters [closed]

由 跟風遠走 提交于 2019-12-07 04:04:16
问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 6 years ago . So I've run into this weird error in R. I have a simple function which returns an error term when comparing real and simulated prices, called

Error in optim: function cannot be evaluated at initial parameters [closed]

由 心不动则不痛 提交于 2019-12-05 10:32:01
This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center . Closed 6 years ago . So I've run into this weird error in R. I have a simple function which returns an error term when comparing real and simulated prices, called hestondifferences() . when I try to find the local minima via: res<-optim(fn=hestondifferences, par = c(vT=vT,

Register for NLM events (INetworkListManager, Advise, Sink, etc.)

由 这一生的挚爱 提交于 2019-12-01 11:23:23
In my Delphi application I'd like to get informed about network changes using the Microsoft Windows Network List Manager API (NLM): http://msdn.microsoft.com/library/ee264321 I've looked at the linked "How to register for NLM events" example and translated it to Delphi. However, I have no idea how to continue with this. var pNLM: INetworkListManager; pCpc: IConnectionPointContainer; pConnectionPoint: IConnectionPoint; pSink: IUnknown; dwCookie: LongInt; const IID_IConnectionPointContainer: TGUID = '{B196B284-BAB4-101A-B69C-00AA00341D07}'; IID_IUnknown: TGUID = '{00000000-0000-0000-C000

Register for NLM events (INetworkListManager, Advise, Sink, etc.)

由 孤街浪徒 提交于 2019-12-01 09:06:08
问题 In my Delphi application I'd like to get informed about network changes using the Microsoft Windows Network List Manager API (NLM): http://msdn.microsoft.com/library/ee264321 I've looked at the linked "How to register for NLM events" example and translated it to Delphi. However, I have no idea how to continue with this. var pNLM: INetworkListManager; pCpc: IConnectionPointContainer; pConnectionPoint: IConnectionPoint; pSink: IUnknown; dwCookie: LongInt; const IID_IConnectionPointContainer:
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