plyr相关问题列表-plyr - 码农岛

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Operations on mult-dimensional arrays in R: apply

闹够了就滚·2019-07-15 11:34·1 回答·问答

Subsetting DataFrame in R by duplicate values for

该账号已被封号·2019-07-13 01:53·2 回答·问答

Fast crosstabs and stats on all pairs of variables

Luminary・发光体·2019-07-11 03:25·1 回答·问答

R data.frame: rowSums of selected columns by group

女痞·2019-07-09 02:05·1 回答·问答

Use lapply on a subset of list elements and return

看我几分像从前·2019-06-27 04:13·2 回答·问答

Add simulated poisson distributions to a ggplot

爷的心禁止访问·2019-06-26 03:08·1 回答·问答

Aggregating duplicate rows by taking sum

孤傲高冷的网名·2019-06-24 19:23·1 回答·问答

Adding selected data frames together, from a list

叼着烟拽天下·2019-06-24 03:03·1 回答·问答

Aggregate sum and mean in R with ddply

劫难·2019-06-22 04:59·7 回答·问答

Calculate ranks for each group

The star\"·2019-06-19 01:35·1 回答·问答

R - Speeding up approximate date match. idata.fram

别忘想泡老子·2019-06-17 04:29·3 回答·问答

Error bars on stacked bar ggplot2

虎瘦雄心在·2019-06-15 01:43·3 回答·问答

Normalize data by use of ratios based on a changin

放荡不羁爱自由·2019-06-14 17:52·1 回答·问答

replace median for category by condition of three

走好不送·2019-06-10 01:03·2 回答·问答

How to calculate percentage change from different

The star\"·2019-06-06 17:29·2 回答·问答

R: rollapplyr and lm factor error: Does rollapplyr

成全新的幸福·2019-06-06 15:09·1 回答·问答

Adding a row for the ratio of two variables

Evening l夕情丶·2019-06-05 07:22·3 回答·问答

Find proportion across categories, grouped by a se

Juvenile、少年°·2019-06-02 04:13·2 回答·问答

Lag in dataframe

再贱就再见·2019-06-01 02:06·4 回答·问答

Compute one sample t-test for each column of a dat

成全新的幸福·2019-05-29 03:52·2 回答·问答

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