我使用不渲染: Ubuntu的12.04 64位, ř3.0.2, RStudio 0.98.312, knitr 1.5, 降價0.6.3, mgcv1.7 -27一些情節在Rstudio,knitr,Rmarkdown
我有一個帶有多個代碼塊的Rmarkdown文檔。在一個塊的中間,有一些代碼位於我適合GAM的位置,總結適合度並繪製出適合度。問題是第一個情節呈現到輸出文件中,但第二個情節沒有。下面是從塊的消毒代碼片段:
fit <- gam(y ~ s(x), data=j0, subset= !is.na(x))
summary(fit) # look at non-missing only
plot(fit)
fit <- gam(y ~ s(sqrt(x)), data=j0, subset= !is.na(x))
summary(fit)
plot(fit)
mean(y[is.na(x)]) - mean(y[!is.na(x)])
呈現的一切如預期,但其輸出從呼應第二陰謀聲明呼應的手段以下計算直線前進。平均值計算的結果是正確的。
如果我在另一個圖表中註釋掉另外一個圖塊,在塊中稍後調用7行,那麼缺失的圖形將被正確渲染。
有沒有人有任何建議,這裏發生了什麼?
更新下面
總結 - 呼叫爲劇情2後的幾行有生成執行錯誤(可變未找到)和幾行一些R代碼裏面之後,有一個呼叫爲劇情3.如果代碼錯誤是固定的,然後繪製2。如果代碼錯誤是未定義的,並且對繪圖3的調用被註釋掉,則繪製繪圖2。問題取決於用於存儲不同擬合結果的相同變量「擬合」。如果我將每個擬合分配給不同的變量,那麼曲線2呈現OK。
我不明白在成功執行多行代碼之後如何進行更改(顯然是追溯性)可以防止繪製2渲染。
重複的例子:
Some text.
```{r setup}
require(mgcv)
mkdata <- function(n=100) {
x <- rnorm(n) + 5
y <- x + 0.3 * rnorm(n)
x[sample(ceiling(n/2), ceiling(n/10))] <- NA
x <- x^2
data.frame(x, y)
}
```
Example 1
=========
Plot 2 fails to render. (Using the same fit object for each fit.)
```{r example_1}
j0 <- mkdata()
attach(j0)
mx <- min(x, na.rm=TRUE)
fit <- gam(y ~ s(x), data=j0, subset= !is.na(x))
summary(fit)
plot(fit) # plot 1
fit <- gam(y ~ s(sqrt(x)), data=j0, subset= !is.na(x))
summary(fit)
plot(fit) #plot 2
mean(y[is.na(x)]) - mean(y[!is.na(x)]) # means calculation
# recode the missing values
j0$x.na <- is.na(x)
j0$x.c <- ifelse(x.na, mx, x) # ERROR in recode
detach()
attach(j0)
fit <- gam(y ~ s(sqrt(x.c)) + x.na, data=j0) # doesn't run because of error in recode
summary(fit) # this is actually fit 2
plot(fit) # plot 3 (this is actually fit 2)
detach()
```
Example 2
=========
Use separate fit objects for each fit. Plot 2 renders OK.
```{r example_2}
j0 <- mkdata()
attach(j0)
mx <- min(x, na.rm=TRUE)
fit1 <- gam(y ~ s(x), data=j0, subset= !is.na(x))
summary(fit1)
plot(fit1) # plot 1
fit2 <- gam(y ~ s(sqrt(x)), data=j0, subset= !is.na(x))
summary(fit2)
plot(fit2) #plot 2
mean(y[is.na(x)]) - mean(y[!is.na(x)]) # means calculation
# recode the missing values
j0$x.na <- is.na(x)
j0$x.c <- ifelse(x.na, mx, x) # ERROR in recode
detach()
attach(j0)
fit3 <- gam(y ~ s(sqrt(x.c)) + x.na, data=j0) # doesn't run because of error in recode
summary(fit3)
plot(fit3) # plot 3
detach()
```
Example 3
=========
Revert to using the same fit object for each fit. Plot 2 renders because plot 3 is commented out.
```{r example_3}
j0 <- mkdata()
attach(j0)
mx <- min(x, na.rm=TRUE)
fit <- gam(y ~ s(x), data=j0, subset= !is.na(x))
summary(fit)
plot(fit) # plot 1
fit <- gam(y ~ s(sqrt(x)), data=j0, subset= !is.na(x))
summary(fit)
plot(fit) #plot 2
mean(y[is.na(x)]) - mean(y[!is.na(x)]) # means calculation
# recode the missing values
j0$x.na <- is.na(x)
j0$x.c <- ifelse(x.na, mx, x) # ERROR in recode
detach()
attach(j0)
fit <- gam(y ~ s(sqrt(x.c)) + x.na, data=j0)
summary(fit) # this is actually fit 2
# plot(fit) # plot 3 (this is actually fit 2)
detach()
```
Example 4
=========
Plot 2 renders because later recode error is fixed.
```{r example_4}
j0 <- mkdata()
attach(j0)
mx <- min(x, na.rm=TRUE)
fit <- gam(y ~ s(x), data=j0, subset= !is.na(x))
summary(fit)
plot(fit) # plot 1
fit <- gam(y ~ s(sqrt(x)), data=j0, subset= !is.na(x))
summary(fit)
plot(fit) #plot 2
mean(y[is.na(x)]) - mean(y[!is.na(x)]) # means calculation
# recode the missing values
j0$x.na <- is.na(x)
j0$x.c <- ifelse(j0$x.na, mx, x) # error in recode fixed
detach()
attach(j0)
fit <- gam(y ~ s(sqrt(x.c)) + x.na, data=j0)
summary(fit)
plot(fit) # plot 3
detach()
```
日誌文件:
> require(knitr); knit('reproduce.Rmd', encoding='UTF-8');
Loading required package: knitr
processing file: reproduce.Rmd
|...... | 9%
ordinary text without R code
|............ | 18%
label: setup
|.................. | 27%
ordinary text without R code
|........................ | 36%
label: example_1
|.............................. | 45%
ordinary text without R code
|................................... | 55%
label: example_2
|......................................... | 64%
ordinary text without R code
|............................................... | 73%
label: example_3
|..................................................... | 82%
ordinary text without R code
|........................................................... | 91%
label: example_4
|.................................................................| 100%
ordinary text without R code
output file: reproduce.md
[1] "reproduce.md"
請發佈一個可重複的例子。你的問題可能是由於你有大塊選項'fig.keep',但沒有任何這些信息,這純粹是猜測。 – mnel
日誌說什麼? –