Error In Model Frame Default Formula
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Error In Model.frame.default Invalid Type (null) For Variable
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Error In Model.frame.default Object Is Not A Matrix
model.frame.default … variable lengths differ up vote 3 down vote favorite 1 On running a gam model using the mgcv package I encountered a strange error message which I am unable to understand. The error message was “Error in model.frame.default(formula = death ~ pm10 + Lag(resid1, 1) + : variable lengths differ (found for 'Lag(resid1, 1)')”. The number of observations used in model1 is variable lengths differ r lm exactly the same as the length of the deviance residual, thus I think this error is not related to difference in data size or length. I found a fairly related error message on web here , but that post did not receive adequate answer, so it is not helpful to my problem Reproducible example and data follows: library(quantmod) library(mgcv) require(dlnm) df <- chicagoNMMAPS df1 <- df[,c("date","dow","death","temp","pm10")] df1$trend<-seq(dim(df1)[1]) ### Create a time trend Run the model model1<-gam(death ~ pm10 + s(trend,k=14*7)+ s(temp,k=5), data=df1, na.action=na.omit, family=poisson) Obtain deviance residuals resid1 <- residuals(model1,type="deviance") Add a one day lagged deviance to model 1 model1_1 <- update(model1,.~.+ Lag(resid1,1), na.action=na.omit) model1_2<-gam(death ~ pm10 + s(trend,k=14*7)+ s(temp,k=5) + Lag(resid1,1), data=df1, na.action=na.omit, family=poisson) Both of these models have produced the same error message r share|improve this question asked Nov 4 '13 at 15:37 Meso 4553922 (Almost) never think that an error message is flat out lying. That will greatly increase the amount of time you spend debugging it. Note that you've specified na.omit. Perhaps the differing lengths are due to an observation with an NA value being dropped. –joran Nov 4 '13 at 15:44 @
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Variable Lengths Differ (found For 'age')
and policies of this site About Us Learn more about Stack Overflow variable lengths differ r glm the company Business Learn more about hiring developers or posting ads with us Cross Validated Questions Tags Users Badges error in model.frame.default factor has new levels Unanswered Ask Question _ Cross Validated is a question and answer site for people interested in statistics, machine learning, data analysis, data mining, and data visualization. Join them; it only http://stackoverflow.com/questions/19771284/error-in-model-frame-default-variable-lengths-differ takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Error with lm in R up vote 2 down vote favorite 1 I'm taking a class on R and I cannot get the professors code to work. I am trying to do a http://stats.stackexchange.com/questions/70990/error-with-lm-in-r simple linear model and I run this code: ozone<-read.table("http://www.ats.ucla.edu/stat/r/faq/ozone.csv", sep=",", header=T) fit = lm(ozone~.,data=ozone) summary(fit) Which keeps giving me the following error: Error in model.frame.default(formula = ozone ~ ., data = ozone, drop.unused.levels = TRUE) : invalid type (list) for variable 'ozone It's really depressing as they are the first two lines of code in his lecture notes. I have also found several other forum posts on this topic (it's even listed as a common r mistake), but I am too...special to figure out how to change it. I tried reading it as.numeric, and as a data.frame, which is what most other threads suggested, but neither worked. r linear-model lm share edited Sep 16 '15 at 13:33 mpiktas 24.7k448103 asked Sep 25 '13 at 7:59 user30697 11112 locked by whuber♦ Sep 16 '15 at 16:16 This question exists because it has historical significance, but it is not considered a good, on-topic question for this site, so please do not use it as evidence that you can ask similar questions here. This question and its answers are frozen and cannot be changed. More
(Spring 2015) Mon 13 Apr 2015 – Mon 4 May 2015 (17 months ago) Dashboard ▼ Home Data Make a submission Information Description Evaluation Rules Timeline Forum Leaderboard Public Private https://www.kaggle.com/c/15-071x-the-analytics-edge-competition-spring-2015/forums/t/13421/error-in-model-frame-default Competition Forum All Forums » 15.071x - The Analytics Edge (Spring 2015) Error in model.frame.default ? Start Watching « Prev Topic » Next Topic 0 votes Hi everyone, I've run the cross -validation on my CART model, which previously did return a prediction. When I've re-run the model with the cp, I still get a model, which can predict on the training data, but when error in I try to predict on the test dataset, I'm getting the following error. > predCARTtest=predict(wordsCART,type="class",newdata=dtmWordsTest) Error in model.frame.default(Terms, newdata, na.action = na.action, xlev = attr(object, : variable lengths differ (found for 'date')In addition: Warning message:'newdata' had 1870 rows but variables found have 6532 rows It suggest that 'newdata' has 1870 rows, but that variables found have 6532 rows. I have checked the str() for both my error in model training and testing set, and have str(dtmWordsTest)'data.frame': 1870 obs. of 268 variables str(WordsDF)'data.frame': 6532 obs. of 269 variables (the same 268 + the outcome var) I'm lost as to where I'm going wrong. I've done the same procedures for both train and test set (i.e I have pre-processed them together as per the R-script, then I've added the remaining variables from the NewsTrain and NewsTest dataframes). Any ideas? n.b. this is my first encounter with R (or any machine learning programs for that matter, so the Help pages and Google seem like they're written in Swahili at the moment) #1 | Posted 18 months ago Permalink KatTaylor Posts 10 | Votes 3 Joined 10 Apr '15 | Email User 1 vote Some things to look at: Check the variable names to see if they match in the two data sets. (use colnames) Check the variable types to see if they match. The error message seems to point the finger at the date variable. Verify that is the same in both data sets. Note that you should not use type="class" for predictions you plan to submit. #2 | Posted 18 months ago Permalink oconnoda Competition 71st Post