Is it possible to use spaces in ddply? I\'m using data from a spreads开发者_Go百科heet with a lot of spaces in column names and i would like to keep those names because later on I want to export this
Or rather, How can I do it better than I have fudged. I have a dataframe with names and start and end dates in a group. I want to produce a dataframe with the number of people in the group over time.
How can I add text to points rendered with geom_jittered to label them? geom_text will not work because I don\'t know the coordinates of the jittered dots. Could you capture the position of the jitter
I got a transaction database which looks like this: AccountID PaymentDate PaymentAmount 8132020-02-091.00
I have a dataframe in R of the following form: > head(data) Group Score Info 111a 212b 313c 424d 523e 621f
While merging 3 data.frames using p开发者_运维知识库lyr library, I encounter some values with the same name but with different values each in different data.frames.
As a guideline I prefer apply functions on elements of a list using lapply or *ply (from plyr) rather than explicitly iterating through them. However, this works well when I have to process one list a
I would like to subset a data frame for n rows, which are grouped by a variable and are sorted descending by another variable. This would be clear with an example:
I am using ddply to aggregate and summarize data frame variables, and I am interested in looping through my data frame\'s list to create the new variables.
Does anyone know a slick way to order the results coming out of a ddply summarise operation? This is what I\'m doing to get the output ordered by descending depth.
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