r

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Conditional Merge in R Data Frame using a String as a search

I am prepping a database for plotting in ggplot where I will plot a large geom_point() plot. I would like one set of point to stand out and was thinking of making a dummy column so that I could use th[详细]

2023-04-12 21:49 分类：问答
Get time from xts index

I have an xts object, x. I want to run a for loop until a certain time, based on the time stamp in the index.[详细]

2023-04-12 21:30 分类：问答
Unable to install R package in Ubuntu 11.04 [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-04-12 19:23 分类：问答
What is the replacement for R CMD mydir build --binary?

I have run R CMD mydir build --binary It works, BUT it tells me that --binary is deprecated. So what is the \"new\" versio开发者_运维知识库n of --binary?[详细]

2023-04-12 18:16 分类：问答
Calculate within categories: Equivalent of R's ddply in Python?

I have some R code I need to port to python. Howe开发者_如何学编程ver, R\'s magic data.frame and ddply are keeping me from finding a good way to do this in python.[详细]

2023-04-12 18:15 分类：问答
Append lines to a file

I\'m new using R. I\'m trying to add (append) new lines to a file with m开发者_C百科y existing data in R. The problem is that my data has about 30000 rows and 13000 cols. I already try to add a line w[详细]

2023-04-12 18:01 分类：问答
Getting frequency values from histogram in R

I know how to draw histograms or other frequency/percentage related tables. But now I want to know, how can I get those frequency values in a table to use after the fact.[详细]

2023-04-12 17:40 分类：问答
Only read selected columns

Can anyone please tell me how to read only the first 6 months (7 columns) for each year of the data below, for example by using read.table()?[详细]

2023-04-12 17:11 分类：问答
Generate entries in time series data

I want to generate a row (with zero ammount) for each missing month (until the current) in the following dataframe. Can you please give me a hand in this? Thanks![详细]

2023-04-12 17:06 分类：问答
read.spss Extra variables/fields

With the f开发者_如何学Coreign package, I\'m reading in a .sav file. When I open the file with PSPP there are 95 variables. However, read.spss(\"file\") responds with a list of 353 variables. The extr[详细]

2023-04-12 16:14 分类：问答