search for: hectare

Dear All, I've tried to sum columns -- different species of flowers, fruits plus twigs -- with NAs to get litterfall/trap, and then after use litterfall to calculate production (litterfall (grams)/ hectare/ day. But R 'sees' litterfall/trap as a string. My question: How to use basic mathematical functions to deal with NAs in data management. Example (as you can note I have many missing values -- no fruit fell in the trap. area ponto date pseco psaco pliquido florg1 flor1 florg2 f...

Dear fellows, I need a R script that compare known curves (e.g. logistic, exponential) with my curve. That curve was generated fitting data of forest cover (hectares) measured in 10 road distances (buffers). I´d like that comparison should be done using AICc to select the best model, that is, the best fitted curve in comparison with my data. Anyone could help me? Best regards Simone. -------------------------------------------------- Simone R. Freitas Univ...

I am a new user of R and am crunching through the system. I have reached an impasse with mapping; I want to make a bubble map and lay it over a grid that is composed of a standard x,y axis. Within this, are 16 (4x4) gridded blocks, numbered 1-16. And, within these individual hectares(1-16) it is further subdivided into individual x,y plots ( in accordance with the overall x,y axes). I have a general idea of how to make the bubble map but the background map is giving me a lot if trouble...HELP Sent from my iPhone

...ta, srv1 ) ) total SE vol 2377.0 34.464 strataA 42.0 0.000 strataB 64.0 0.000 strataC 34.0 0.000 which reports the number of observations in each of the strata. I'm sure this is a RTFM question, but I just need a start. The size of each "plot" is 0.04 units (hectares) and I want to be able to quickly examine working up each sample with and without clusters (this is going to be part of a larger simulation study). I'm trying to not use SAS for this and hate to admit defeat. Thanks, Jeff.

...100m) with population density over Switzerland (local coordinations system, CH LV03). Now I would like to have a nice graphic to present the data. I would like to make a plot that will show the density as the z-variable and raise for example a stacking pillar showing how high the density is in that hectare. I attached a map that's similar to what I would like, to give you an idea incase I am not making myself clear. <http://r.789695.n4.nabble.com/file/n4658517/Bildschirmfoto_2013-02-14_um_10.08.51.png> Can you tell me how I can do this? I tried persp and persp3d, but there the x and y-v...

Dear R users, I am using the *mgcv package* to model the ratio of hectares of damaged culture by wild boar in french departments according to some environmental covariates. I used a _Beta distribution_ for the response. For each department, we estimated the damaged in 3 different culture types (??Culture??). Our statistical individual are therefore the department c...

Hello, When I put in the following script line: gap.boxplot(CLI3, CLI4, CLI5, CLI6, CLI7, gap=list(top=c(8000,280000), bottom=c(0,250)), range=50, outline=TRUE, par(ask=FALSE) I get a '+' telling me I am missing something. I have tried adding ')', 'width=NULL', etc and then I get this error: Error: unexpected symbol in: "gap.boxplot(CLI3, CLI4, CLI5, CLI6, CLI7,

...for Tropical Forest Science, CTFS. This "center" is a collaboration of 15+ institutions world wide that are investigating properties of tropical forest dynamics, species diversity, species distributions. The investigation is composed of the same sampling design of the forest: a large 50 hectare plot (usually) in which every tree >= 10 mm in diameter has been tagged, mapped and identified. Reenumerations occur very 5 years (mostly). Other information such as topography, canopy structure, seedling traps, etc, etc. are collected to different degrees at different sites. Some sites have...

...69 4 10 2.6299 4 11 0.72828 5 12 2.4276 5 13 6.069 7 14 4.8552 7 15 2.32645 7 16 1.6184 8 17 1.0115 8 18 1.0115 8 19 5.2598 9 20 2.023 10 21 0.6069 10 22 1.2138 11 23 0.8092 11 24 1.4161 11 25 0.6069 11 26 3.440 11 27 1.2138 12 28 1.2138 12 29 0.4046 12 30 1.2138 12 Fsize is the farm size (acre or hectare). Food deficit (FD) is the number of months (last year from the survey took place) that an household had bought food-grains (minimum = 0 month, maximum = 12 months or whole year deficit). Even though I "jitter"-ed the minimum or maximum FD value only (eg. FD=0+1e-6 or FD=12-1e-6), nothin...

...oming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Sun, Mar 4, 2018 at 4:10 AM, Vaniscotte Am?lie <vanamelie at gmail.com> wrote: > Dear R users, > > > I am using the *mgcv package* to model the ratio of hectares of damaged > culture by wild boar in french departments according to some > environmental covariates. I used a _Beta distribution_ for the response. > > > For each department, we estimated the damaged in 3 different culture > types (? Culture ?). Our statistical individual are th...

....csv", header=TRUE, sep=",") cli7<-read.table("F:\\Megan\\cli7.csv", header=TRUE, sep=",") # Attach these to the dataframe attach(cli3) attach(cli4) attach(cli5) attach(cli6) attach(cli7) # Calculate box and whisker values for each file #CLI3<-(quantile(hectares)) #CLI4<-(quantile(hectares2)) #CLI5<-(quantile(hectares3)) #CLI6<-(quantile(hectares4)) #CLI7<-(quantile(hectares5)) # Set margins for plot area par(mar=c(5, 5, 3, 1)) #classes<-list(cli3, cli4, cli5, cli6, cli7) classes<-c(cli3, cli4, cli5, cli6, cli7) gap.boxplot(class...

..."16 Passy", "17 Batingnoles", "18 Montmartre", "19 B. Chaumont", "20 Menilmontant") #names for population characteristics cnames <- c("01 Accrois. pop", "02 Pop specifique", "03 Habitants/menage", "04 Maisons/hectare", "05 Habitants/maison", "06 Appart./maison", "07 Appart. vacantes", "08 Locaux Indust.&C", "09 Garnisson,", "10 Parisiens", "11 Provinseaux", "12 Etrangers", "13 Calvinistes", "14 Lutheriens&...