如何解决我将 R“粒子”包应用于海洋速度数据,并收到错误消息,说我内存不足
我正在尝试将 R“粒子”包中的一个示例应用于海洋速度数据(动能)。 示例数据如下:
ke1<-c(0.394610137,0.203202814,0.12364389,0.069784589,0.048573241,0.043057494,0.03826768,0.034176417,0.032129359,0.03122394)
ke2<-c(0.094138406,0.169889584,0.086677499,0.070593894,0.049883354,0.042339094,0.038856283,0.037967827,0.036562074,0.037240546)
ke3<-c(0.054365572,0.096576959,0.10304369,0.061354585,0.053624138,0.042112421,0.040727202,0.039870735,0.042947762,0.043291345)
ke4<-c(0.030527802,0.075901449,0.08003746,0.068991989,0.048506431,0.044592839,0.04071483,0.042985249,0.042403288,0.044974718)
ke5<-c(0.021374704,0.047852065,0.070487022,0.059393879,0.051129311,0.042866949,0.040003292,0.040003441,0.044107087,0.04578279)
ke<-cbind(ke1,ke2,ke3,ke4,ke5)
library(particles)
library(tidygraph)
sim <- create_empty(1000) %>%
simulate(alpha_decay = 0,setup = aquarium_genesis(vel_max = 1)) %>%
wield(reset_force,xvel = 0,yvel = 0) %>%
wield(field_force,angle = ke,vel = ke,xlim = c(-5,5),ylim = c(-5,5)) %>%
evolve(1000,record)
增加速度数据量(row = 233,col = 154),出现如下错误。
Error: cannot allocate vector of size 152.6 Mb
我试图检查我用 gc() 使用的内存量。
gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 2765657 84.5 4718054 144.0 4718054 144.0
Vcells 311435640 2376.1 480298947 3664.4 439560179 3353.6
memory.limit 是 4000(上限)。 我能说是PC内存引起的吗?
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